Conversation so far:
where is the first private orphanage in new york city
New York City’s first private orphanage, which endures today as Graham Windham, is located at One Pierrepont Plaza, Suite 901, Brooklyn, NY 11201.
in what cities are the graham windham program locations
Graham Windham has program locations in Hastings-on-Hudson, Brooklyn, Bronx, and New York City.
when was graham windham founded
Graham Windham was founded in 1806.

Question: who founded the nonprofit
Self-contained rewrite: who founded graham windham