Mary E. Scott, M.Ed.

Baltimore County Public Schools, Ret.

Towson, MD

Term Expires 7/2022

Mary E. Scott and her husband have 2 daughters, one with a developmental disability. Mary says they enrolled their daughter as a member of By Their Side many years ago because they recognize that they will not always be around to guide and supervise her care. Her sister will need and appreciate professional guidance in making decisions in the future.

Background: Mary is known by many families and professionals for her work as Transition Coordinator for the Baltimore County Public Schools, prior to her retirement in 2017. She serves as a Commissioner on the Baltimore County Commission for Disabilities, is a member of the Baltimore County Local Management Board and a member of the Citizens' Advisory Council for the Maryland Center for Developmental Disabilities. In a former life, she directed an early intervention program, worked as a hospital teacher and was a family resource specialist for the Baltimore County Public Schools.

Mary received By Their Side's Martin Lampe Leadership Award in 2019 in recognition of her work to support transitioning students and their families, develop educational opportunities for parents, and her ongoing efforts to strengthen Self Directed services in Maryland.

Mary became Board President in 2020 and chairs By Their Side's Public Education committee.


Barry Gordon, MD, Ph.D

Johns Hopkins Medical Institutions

Baltimore, MD

Term expires: 7/2022

Dr. Barry Gordon joined the Board in 2017. He and his wife Renee live in Baltimore.

Background: Dr. Gordon is a behavioral neurologist and cognitive neuroscientist at The Johns Hopkins Medical Institutions in Baltimore. His work focuses on developing methods for improving language, memory, thinking skills, and learning in individuals with autism and other acquired and developmental brain conditions. He was a founder of the Johns Hopkins' Cognitive Neurology/ Neuropsychology Division, Memory Clinic, and Mind/Brain Institute. Dr. Gordon has authored numerous academic publications including books on memory for the general public, Memory: Remembering and Forgetting in Everyday Life and Intelligent Memory. He has appeared as a guest on the Oprah Winfrey Show, the Today Show, CBS’s Morning Edition, ABC’s Good Morning America, NBC’s Dateline, the PBS series The Brain, NPR's Fresh Air and The Diane Rehm Show, discussing topics such as autism and A Scientist's Saga: Give Son The Gift Of Speech.

Barry became Vice President in 2020 and a member of the Assistive Technology Subcommittee.

Image: Jeff Dahlka


Jeffrey A. Dahlka, Sr. M.B.A.

Data Management, Inc.
Glyndon, MD

Term expires: 7/2022

I joined the 'all volunteer' Board of By Their Side for two reasons. First, close family friends have a daughter with a developmental disability who is a By Their Side member, and I find it rewarding that I can help their family in a small way. In addition, I get complete satisfaction in donating my time to a great group of caring individuals that make a big difference in the lives of our members and their families.

I am Vice President of Marketing for Data Management Marketing/Digital Graphics, located in Malabar, Florida. I work with clients, providing commercial printing services, database management, and behavioral targeting, to manage their consumer marketing campaigns and services to their customers. We serve businesses across the country including financial and health care companies and government agencies.

I received my MBA from Loyola University Maryland, and my BS in Finance from the University of Maryland, College Park. My career started out in bank accounting, progressing into commercial credit analysis and consumer lending. Since that time, I've held positions in product analysis, risk management, and marketing management. All of my previous jobs serve me well as your Treasurer for By Their Side.

I am an avid golfer, and have 2 classic cars that need a lot of work. My wife Laurie and I now live in Florida. With children in college, the cars will have to wait to be restored of course.

Jeff  chairs By Their Side's Finance Committee.

Image: Phil Levinson


Philip D. Levinson, DDS

Dept. of Veteran's Affairs, Ret.

Pikesville, MD

Term expires: 7/2022

Dr. Philip Levinson and his wife Winnie have a son who is a member of By Their Side. His By Their Side advocate makes an annual visit as a transition for the future

Dr. Levinson received a dental degree from the University of Pittsburgh. He served as an active duty and reserve officer of the U.S. Army and retired with the rank of Colonel. He was employed by the Department of Veterans Affairs and served as Director, Dental Care Clinical Center of the VA Maryland Health Care System. Dr. Levinson was a Clinical Assistant Professor at the University of Maryland Dental School, and served on the Board of Directors of the Perry Point Federal Credit Union.

Dr. Levinson serves as Assistant Scout Master and chairs the Oversight Committee of a Scout Troop for men with developmental disabilities. The Troop provides a rewarding scouting and educational experience for 31 men.

Dr. Levinson serves on By Their Side's Family Services Committee.


Immediate Past President:

Mark Wagner, DMD

UMD Dental School, Ret.
Pikesville, MD

    Term Expires: 7/2023

Mark Wagner joined the Board in April 2009. He and his wife, Marcia live in Pikesville. They have three children and three grand children. Their son has been a By Their Side member since 1985. Mark can be heard on Insight on disABILITY Talk Radio's Archived program discussing his plan for By Their Side's assistance to his son's out of state siblings.

Mark is a retired professor emeritus at the University of Maryland School of Dentiy and continues teaching at the Dental School as a volunteer faculty in Pediatric and Special Care Dentistry. Mark is a former Vice President for Health Programs of Special Olympics, International. He currently serves as President of Byheir Side and actively volunteers for several other non-profits including CHANGE, Inc. and Chesapeake and Potomac Spina Bifida,Inc.

Mark serves on By Their Side's Leadership Development Committee, Finance Coittee, Public Education Committee, and Family Services Committee.


Timothy Eberhardt, B.S.

Capitol Funding Group

Baltimore, MD

Term Expires: 7/2022

Timothy Eberhardt works for Capitol Funding Group, a Baltimore based healthcare finance company. He is in the healthcare real estate lending group, focused on origination and execution of both traditional bank and agency HUD mortgages for his clients development, acquisition, or refinance of skilled nursing and assisted living faciltities across the country.

Tim is the cousin of a By Their Side member.

Tim  serves on By Their Side's Finance Committee.


Jenny Jones, B.A.

Kennedy Krieger Institute

Baltimore, MD

Term Expires: 7/2022

Jenny Jones is well known to Maryland families as she covers Kennedy Krieger Institute's invaluable Resource Finder program at the Maryland Center for Disabilities.  The program responds to about 1300 requests annually. Prior to  starting work with the Resource Finder in 2004, Jenny served as manager of Development and Public Relations for Unified Community Connections (previously UCP).

Jenny serves on the Public Education Committee and manages By Their Side's Facebook presence.



Calvin Simpson, B.A.

CareFirst BlueCross BlueShield, Ret.

Laurel, MD

Term Expires: 7/2023

Calvin Simpson has advocated for his brother for over 20 years.  They are in frequent contact and though guardian, Calvin involves his brother in decisions and honors his choices. Calvin enrolled his brother in By Their Side to assure he would always have an advocate, and has taken the opportunity to call the office to discuss resources and advocacy strategies.  When Calvin retired in 2020, he was ready to join By Their Side's Board of Directors.  Calvin serves on the Family Services Committee, and with the committee is exploring new avenues of sibling support.

A native of Washington, D.C., Calvin has also served on two HOC Boards and describes himself as a struggling tenor. 


Janis Ellis, M.Ed.

Baltimore, MD

Term Expires: 7/2023

Janis Ellis joined the Board in 2017. She and her husband Jim live in Baltimore, and their son is a member of By Their Side.

Janis has extensive background in education including consultation in special needs, teaching, and directing early childhood programs. She previously served on the Board of Directors of Bello Machre and as a volunteer for other organizations.

Janis serves on By Their Side's Public Education Committee.

Image: Judy Volkman


Judy Volkman, B.A.

The Arc Maryland Ask Me!, Ret.
Baltimore, MD

Term expires: 7/2022

Our family joined By Their Side before Service Coordination was created. We were concerned that our son Doug would not get the services he needed and he does not communicate with words. We were also concerned for our other son who would become guardian for his brother, because he does not know the DDA system as I do. Unfortunately, he died suddenly  and there is no other family member who could do the job as guardian. A close friend volunteered to take on this role, but she will not be able to make visits as often as she likes. Here is where By Their Side comes in: they will make monthly visits for an additional cost and serve as a resource for her. I joined the Board in 2013.

Background: Because of Doug's disability, I became active in PTA and have been a member of the Baltimore County Commission on Disabilities since the 1970's. I worked for a provider agency for 14 years as a Coordinator of Special Projects. I then worked for The Arc Maryland as Program Director for Ask Me!, a quality of life survey, with the survey conducted by people with disabilities. I have since retired, but am still active in church activities, serving presently as Secretary of the Church Council. In my spare time, I enjoy walking the dog and knitting scarves and donating them to an elementary school and a food pantry.

Judy serves on the Family Services Committee.



Joan Chevailer, Ph.D.

U.S. Naval Academy

Annapolis, MD

Term Expires: 7/2023

Joan joined the Board in 2014. Her parents enrolled her brother in By Their Side many years ago. A linguist teaching Russian at the U. S. Naval Academy, Joan arranges By Their Side monitoring services for her brother when she is traveling on sabatical.

Joan chairs the Family Services Committee. She is interested in opportunities for siblings to connect for information and support.  In the past, Joan participated in a series of panel discussions to help bring together Maryland silings to form the Maryland Sibling Network on Facebook. Joan can be heard on Insight on disABILITY Talk Radio's Archived program discussing By Their Side services.

In Memory

Image: Martin Lampe

Martin Lampe, PhD
University Park, MD

1945 - 2015

My wife Barbara and I have been active in disability advocacy since our son was born with Down syndrome in 1983. We also have a daughter who is working as a museum educator at the University of Kansas. We procrastinated on estate planning for years because we could not figure out who would be our son's advocate and care coordinator after we're gone. I think it's a problem nearly all families of people with disabilities have. So we were very happy to learn that By Their Side can fill that gap. I would like to help By Their Side prosper, and to help other families learn about what By Their Side can do for them.

Background: I am a physicist with degrees from Harvard and University of California. I worked at the Naval Research Laboratory in Washington D.C. for over 40 years, and retired as a senior scientist in 2010. I am currently a visiting scientist at the University of Maryland. I have managed a number of large programs, but I get my biggest thrill from working hands-on on basic science problems. I have served as chair of the Division of Plasma Physics of the American Physical Society, the national professional association in our field. I have served on the board and as president of The Arc Prince George's County, and on the management team of Special Olympics Prince George's County.

I am a former board president of By Their Side, and I have used my programming experience to develop an actuarial program that follows By Their Side cash flow to assure that we will be able to fulfill our obligations to our members. I am a lifelong tennis player and exercise enthusiast, and late in life I learned to play golf so I could play with my son: we both love it now. I'm an opera lover too.

Martin Lampe developed By Their Side's Actuarial Study, and recieved By Their Side's first Leadership Award in 2015. This Annual Award continues as By Their Side's Martin Lampe Leadership Award.