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Meet Our Staff


The Seed Program has an experienced and enthusiastic team to support your child and family. We have seven Master's Level Clinicians at Seed, including Licensed and Board Certified Behavior Analysts (LBA, BCBA), Licensed Clinical Social Workers (LCSW), and Registered Behavior Technicians (RBT).


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Julie DeMarco

The Seed Program Executive Director

Licensed and Board Certified Behavior Analyst (LBA, BCBA)

Julie DeMarco is a Licensed and Board Certified Behavior Analyst (LBA, BCBA) and is the Clinical Director and Founder of The Seed Program. Julie has worked in the field of ABA Therapy for over 20 years, providing support for children with special needs since 1995. She is a founding member of the Autism Society of the Mid-South (now ARMS). In 2002, she started Sibshops, a group for siblings of children with disabilities. Julie obtained her Masters Degree in Educational Psychology and Research from The University of Memphis and received further training at The New England Center for Children in Boston. After living in the Northeast, Julie returned to Memphis to marry her husband and work as a Regional Behavior Specialist for Team Evaluation Center. Eventually, Julie began her own private practice as a BCBA, where she worked with families, consulted with public and private schools and gave professional presentations. Julie's professional interests include social skills training and advocacy. She desires to create an inclusive community for families of children with exceptional needs.


Adelaide Burrow Allgyer

The Seed Program Clinical Director

Board Certified Behavior Analyst (BCBA)

Adelaide was born and raised in Memphis. She has always loved working with children and has a special passion for children with special needs. She received her undergraduate degree in Early Childhood Education in 2017 & her Masters in Special Education with an emphasis on Autism from UT Austin in 2018.  

Adelaide loves helping children and families reach their goals, and has been dedicated licensed Board Certified Behavior Analyst since 2019. When she is not busy being a Champion BCBA, Adelaide enjoys cooking, reading, and spending time with family and friends. 


Annie Cornelius

Board Certified Behavior Analyst (BCBA)

Annie Cornelius is the current president of the Tennessee Association for Behavior Analysis. received a Bachelor's in Psychology in 2006 and a Master of Science in Instruction and Curriculum Leadership with a focus in Applied Behavior Analysis (ABA) in 2016, both at the University of Memphis. She began providing ABA in the home-setting in 2011, under Julie Demarco's supervision. She has since worked in schools as well as in the clinical setting after becoming licensed and board certified. During her free time, Annie enjoys spending time with her husband and toddler and reading. 


Tori Hanewald

Board Certified Behavior Analyst (BCBA)

Tori, an Auburn Indiana ("Home of the classic cars") native, moved to Midtown in Spring of 2018 and has fallen in love with the area. The SEED Program helped Tori's transition period be extra sweet and peaceful.  Tori is a recent board certified behavior analyst (BCBA) and licensed behavior analyst (LBA). She has been with The SEED Program for 3 years and has loved getting to know the staff and students that have joined The SEED family. Along with working with early learners, she has a passion for teaching her students health and safety skills and tailoring them for each individual person. When not in the classroom, you can find her crocheting, reading, gardening and baking something to share with all of her coworkers (her specialties are PB&J cupcakes and chocolate chip cookies)!

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Shelly Campbell

Special Education Teacher

Shelly Campbell is an experienced education specialist with a history of working in primary education. She is skilled in PK-8 Education, Speech-Language therapy, Special Education, and Educational Leadership. Shelly attended Delta State University for her undergraduate degree in Speech Language Pathology and the University of Memphis for her master’s degree in Master of Arts in Teaching focused in Comprehensive Special Education. When she is not working, she is spending time with her family. 


Suzanne Lumpkin

Educational Specialist

Suzanne is an educational specialist with over 20 years of experience teaching students with special needs. A native of Booneville, Mississippi, Suzanne attended the University of North Alabama for her undergraduate degree in English and Mississippi College for her master's degree in Dyslexia Therapy. She then earned a specialist degree in Educational Leadership from Arkansas State University. Suzanne is also a Certified Academic Language Therapist. When not working, Suzanne enjoys cooking, reading, and soapmaking.

Jill Young

Special Education Teacher

Jill, a native Memphian, is a graduate of the University of Memphis with a B.A. in English and an M.A. in educational leadership. After deviating from her original plan of becoming a lawyer, Jill discovered her love of teaching while tutoring students and has been on that path for over a decade. Her passion for educating has led her to serve children in many capacities. In addition to her work in general education and special education settings, Jill has taught homeschool clients. She has also been active in education for school leadership. When she isn't working, Jill enjoys spending time with her family, attending concerts, learning languages, and watching an unhealthy amount of Korean Dramas.


Amy Watson

Board Certified Behavior Analyst (BCBA)

Amy was born and raised in the Memphis area. She completed a double undergraduate degree at the University of Memphis, majoring in Child Development and Religion. Following graduation, Amy traveled around the world, serving various populations and cultures. She visited 11 countries in 11 months. When she returned to Memphis, she began a double Master’s program at the U of M, majoring in Social Work and Applied Behavior Analysis. Her choice of degrees reflect her passions for working with children and their families. When she is not working or studying, you will find her working out, hanging with family and friends, or trying to find new local restaurants in the Memphis area. 

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Mary Hattie Murphy

Registered Behavior Technician

Mary Hattie McAlister is a native of Memphis, TN. She attended college at Mississippi State University for two years where she studied Special Education before transferring home to the University of Memphis where she completed her Bachelors degree in Youth Services with a concentration in Integrative Studies. She has been working with children with special needs for over 8 years and has been with The Seed Program since 2014. Mary Hattie loves to make learning fun and interactive everyday! In her free time , she enjoys spending time with family, friends and her golden retriever Ripley. Some of Mary Hattie's favorite things are: spending time outside, visiting Shelby Farms, and college football.


Brooke McLillie Robbins

Registered Behavior Technician

Brooke was born and raised in Tipton County. She has been working with exceptional children since 2015 and enjoys every bit of it!  Brooke is a 2019 graduate of the University of Memphis. She holds a bachelor’s degree in Professional Studies with a focus in both Child Development and Family Studies and Applied Behavior Analysis. She successfully passed her RBT test in Fall of 2019. She plans to begin a masters program in ABA in January of 2020. In her spare time, Brooke enjoys spending time with her fiancé, playing with her dogs Timber and Memphis, camping, hunting, and cleaning her house! 


Chelsea Sims

Registered Behavior Technician

Chelsea received her bachelors degree in Communicative Sciences and Disorders from Harding University in May of 2014. She acquired her Registered Behavior Technician (RBT) certification in November 2019, while working at the SEED Program. Chelsea has a passion for working with early learners. She came to SEED "hoping to help kids be the best they can be". When she is not working, Chelsea enjoys reading as much as she can, trying new recipes, and organizing game nights with her friends. 


Yahaira Pita

Club Connect Event Coordinator/ Registered Behavior Technician

Yahaira Pita is a native Memphian who loves to work with special needs children utilizing ABA Therapy. She has been with the SEED Program since 2017. Yahaira has a few nicknames, including Ms. Pita, Ms. Ghaira and Ms. Haira. In her spare time, Yahaira enjoys watching movies & Netflix, her favorite movies include Wreck-it-Ralph and Lala Land. Yahaira loves Batman, Chocolate and Starbucks! She hopes to visit Italy, New York, and Majorca some day.


Adrienne Mitchell

Registered Behavior Technician

Adrienne calls Memphis home. She received her undergraduate degree in Psychology at UT Chattanooga. She has her RBT certification and she is very excited to further her education in ABA at the University of Memphis. She is currently pursuing her Masters, in hopes of being a BCBA one day! Adrienne is thankful for the opportunity to gain quality experience while providing quality service at SEED!


Meghan Witt

Elementary Classroom Teacher

Registered Behavior Technician

Meghan was raised in Colorado, where she found her love for working with children. She began her studies at the University of Northern Colorado. Over the past ten years, Meghan has worked in the public school setting, serving students of all abilities. She worked for five years in Colorado before moving to Middle Tennessee. Most recently, Meghan worked with a team of special educators to develop a program for students with mental health issues and behavioral disorders in the public school setting. Meghan is passionate about helping students achieve success, both academically and behaviorally. In 2017-2018, Meghan was awarded Classified Employee of the Year for CMCSS school district in Clarksville, Tennessee. In 2018-2019, she was awarded Classified Employee of the Year for LSSD in Lebanon, Tennessee. Her family relocated to Memphis for her husband's job. The move to Memphis has opened up a new opportunity for Meghan to work alongside students and empower them as they learn and grow. She is currently working on completing her Registered Behavior Technician training. When she is not working, she enjoys spending time with her two young children. her husband, and her pup, Teddy. 

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Emily Maddux

Blue Room Lead Teacher

Emily is from Southaven, MS where she lived for 22 years before moving to Tennessee to teach! She has previously worked in ABA Therapy in a clinical setting, but she later found her love for teaching and became a Paraprofessional at Riverdale Elementary for 4 school years. During that time, Emily obtained her Bachelors of Science in Elementary Educational Studies and became a teacher at SEED. Emily plans to get her Masters in Education in the near future. When Emily isn't teaching or babysitting children, she enjoys spending time outside with her sweet dog, Harper. She also enjoys going to the beach/lake, concerts, and relaxing with friends!


Marissa Hampton

Registered Behavior Technician

Marissa was born and raised in Memphis, TN. She obtained her Bachelor’s degree in Psychology and a minor in Sociology at Louisiana State University in August 2019. Shortly after graduating, she moved back to Memphis and taught a kindergarten inclusion class for a year. She is currently in the process of completing her Registered Behavior Technician training and has enjoyed her time at SEED thus far! In Marissa’s spare time, she enjoys spending time with her family and friends, boyfriend, and pet turtle Ronnie!

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Megan Doss

Registered Behavior Technician

Megan grew up in Nashville, TN but has been a Memphian at heart since 2010. Megan graduated from Rhodes College with a Bachelor of Arts in Art History and a minor in Psychology. She later attended The University of Missouri to pursue her Master’s degree in Human Development and Family Science with a focus in Child Life. After she had completed an internship at Children’s Mercy Kansas City,  Megan went on to earn her Child Life Specialist certification. She worked as a Child Life Specialist at Le Bonheur Children’s Hospital. In her spare time, Megan enjoys antiquing, eating food other people have prepared for her, and cuddling with her dog.


Johan Torres

Registered Behavior Technician

Johan was born in a small town in Mexico and has lived in Memphis since he was 3. He received his undergraduate degree in Psychology from Christian Brothers University in 2019. During his final semester, Johan interned at Harwood Center, where he found a passion for ABA. He began working in the field following his graduation and now enjoys having a part in children’s progress. In his free time, Johan enjoys playing soccer, tennis, and video games, as well as finding a new good book, TV show, or movie.


Maddie Gonzales

Registered Behavior Technician

Maddie was born and raised in Memphis. She graduated from the University of Tennessee at Knoxville with a Bachelor of Science in Speech Pathology from the College of Education, Health, and Human Sciences. After graduation, she returned to her hometown and began work at SEED. She has always had a passion for working with children and watching them grow and develop in their own unique way. She is very excited to be a part of the SEED team! Maddie is a huge movie buff and loves spending time with her family, friends, and dog, Kylo Ren!


Camille Grant

Registered Behavior Technician

Camille was born in Newnan, Georgia and raised in Memphis, TN. She graduated at The University of Tennessee in Knoxville with a bachelor’s degree in social work. Camille has always worked with children. She has a strong passion for children and became interested in the ABA field her sophomore year of college. She obtained her RBT certification and is so excited to further her knowledge in this field. She is so excited for this opportunity to serve all the children at SEED. During her spare time, Camille loves to spend time with family and friends, go to Tennessee football games, eat Crumbl cookies, go to the beach, or have a movie night. 


Delaney Dunham

Office Assistant

Registered Behavior Technician

Delaney was born and raised in Memphis, Tennessee. She has always worked with children, and has worked as an RBT since before college graduation, where she found her passion for ABA. Delaney graduated from the University of Memphis with her Bachelor’s Degree in Psychology and a minor in Communications and is very excited to make an impact at SEED! Her favorite hobbies include spending time with her husband and son, watching movies (preferably La La Land), and singing! 


Suzanna Autry

Registered Behavior Technician

Suzanna was born and raised in Memphis, TN. She received her undergraduate degree from the University of Memphis in 2019, and is currently working on her Master's degree in ABA through the University of Arizona. Suzanna began working in an early learning program shortly after graduation, where she discovered a passion for helping kids learn and grow through play. In her spare time, you can find her spending time with friends, reading, and cuddling with her sweet dog, Rosie!


Laken Chism Guest

Office Manager, Intake Coordinator

Registered Behavior Technician

Laken was born in Corinth, Mississippi and currently lives in Olive Branch, Mississippi. She graduated in 2018 with an undergraduate degree in Psychology from the University of Mississippi and received her Masters Degree in Instruction and Curriculum Leadership with emphasis in ABA from the University of Memphis in 2020. Laken has been working in the field of ABA for five years, and loves watching kids learn and grow! In her spare time, she enjoys spending time with family and friends, going on road trips, and watching movies. 


Sarah Pruett VanderSteeg

Behavior Coordinator

Sarah was born and raised in Memphis. She graduated in 2013 from Mississippi State University with a degree in Human Development and Family Studies/ Emphasis in Child Life. She completed an internship in Child Life at Huntsville Hospital for Women and Children before graduating and went on to pursue a certification in Child Life. Following graduation, she worked at LeBonheur Children's Hospital as a Certified Child Life Specialist in the NICU. Over the past several years, Sarah has pursued her passion for helping children with special needs, and she has a special heart for supporting staff, administration, and families in their critical work. 

During her free time, Sarah enjoys spending time with her husband and her two children, walking, and catching up with friends.


Sarah Holder

Behavior Technician

Sarah grew up in Union City, Tennessee and moved to Memphis in 2000. She started her education journey at UT Martin and finished with an undergraduate degree in Psychology with a minor in Early Childhood Education from Southwest Tennessee Community College. While working in public school, she discovered her passion for working with children with special needs. She quickly segued into becoming a SpEd paraprofessional, and after 6 years she decided to take her career to its next level at SEED where she is training to become an RBT! In her free time, Sarah enjoys spending time with her husband, her 3 daughters, and her Boxer, Smokey. She also delights in traveling, solving large jigsaw puzzles, and listening to true crime podcasts.

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Alexa Dyles

Behavior Technician

Alexa was born and raised in Memphis, TN. She graduated with her Bachelor’s of Science in Psychology from Mississippi State University in May of 2024. Alexa will begin graduate school at the University of Memphis this fall to pursue her Masters in School Counseling. Alexa has always known she wanted to work with children, and found herself thriving at Mississippi State where she was given many opportunities to help children succeed. In her free time, Alexa loves to travel and try new foods. Alexa is so excited to begin this new journey at SEED and hopes to continue learning how to better support children and their families!

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