Horizon Day Camp
8 Market Place
Suite 803*
Baltimore, MD 21202
Phone:  410-991-0460
Fax:  410-510-1511

*If sending a package, please send it to Suite 406


Camp Site:

Maryvale Prep
Lutherville, MD

Will Eastman
Executive Director

Mark McElrath
Vice President for Development

Jeanine Williams
Camp Registrar

Fran Sonnenschein
Program Coordinator, Horizon on Wheels​

WILL EASTMAN, Executive Director

Will Eastman oversees Horizon Day Camp in Baltimore, MD. Prior to joining Horizon and the Sunrise Association, Will served as the Executive Director of the Foundation for Ethnic Understanding in New York. Will was also an Aide to Senator Cory Booker during his time as Mayor of Newark, NJ and, most recently, was working as a Philanthropic Consultant in the Baltimore area. Will was recently selected a “40 Under 40” by the Baltimore Business Journal for his work with Horizon. Will is a graduate of Rutgers University and its Eagleton Institute of Politics. He lives with his wife in Baltimore, MD.


MARK McELRATH, Vice President for Development

Mark McElrath was most recently with the Edward A. Myerberg Center as Director of Development.  He has been a Development Officer in the Baltimore community for the past 10 years, nine of them working for the American Cancer Society and Make-A-Wish Foundation.  Mark served as Regional Director and Major Gifts Officer during his tenure with Make-A-Wish Foundation, Mid-Atlantic Region. Regardless of project and scope, Mark’s focus and philosophy concentrate on building meaningful, sustainable partnerships and mutually beneficial relationships. Mark earned an undergraduate degree in Business Administration from Westminster College, and a graduate degree in Sports Management from Slippery Rock University. Mark resides in Bel Air, Maryland.


DR. YORAM UNGURU, MD, MS, MA, Horizon Day Camp Medical Director

Dr. Unguru is a pediatric hematologist/oncologist at The Herman and Walter Samuelson Children’s Hospital at Sinai and a Core Faculty member of The John Hopkins Berman Institute of Bioethics, Baltimore, MD.  He is also Assistant Professor in the School of Medicine, Johns Hopkins University.  Dr. Unguru earned his M.D. (valedictorian) at the Technion – Israel Institute of Technology / Bruce Rappaport Faculty of Medicine.  His M.A. with a concentration in the history of medicine and medical ethics, and B.A. in historical studies, were granted at the University of Maryland, Baltimore County.  Dr. Unguru also received a Master of Science (valedictorian) in interdisciplinary studies in biological and physical science at Touro College / Barry Z. Levine School of Health Sciences.  He completed his pediatric residency at the Children’s Hospital at Sinai and his pediatric hematology/oncology fellowship at Children’s National Medical Center in Washington DC.  Dr. Unguru was a postdoctoral Greenwall Fellow in Bioethics and Public Policy at Johns Hopkins University.  Dr. Unguru is board certified both in pediatrics and in pediatric hematology/oncology.


Jeanine Williams serves as Horizon Day Camp’s Camp Registrar.  Prior to Horizon, Jeanine’s career has spanned the public, private, and nonprofit sectors and she brings a wealth of experience to Horizon. Jeanine is a veteran of the United States Marine Corps. She is a graduate of Indiana State with a Bachelors of Science in Radio, Television, and Film.​ Jeanine is a resident of Owings Mills, Maryland and loves bringing smiles to the lives of Horizon’s children and families.

Fun fact: Jeanine once built a Habitat for Humanity Home alongside President Jimmy Carter! 

FRAN SONNENSCHEIN, Program Coordinator of Horizon on Wheels

Fran Sonnenschein is the Program Coordinator of Horizon on Wheels.  Her professional career includes Director of Community Day Camps, Ottawa’s BBYO and JCC Teen Director and the past twelve years as Associate and Program Director of BZD. She has vast experiences in program development, volunteer engagement and community outreach.  Fran feels strongly the Horizon on Wheels hospital program plays an instrumental role helping to provide children with cancer the opportunities of fun, support and love! ​