Horace Hagedorn was a businessman and philanthropist, and initial passive investor along with others, in Miracle-Gro, founded by Otto Stern (eventually bought out 50% interest of Stern). He is largely credited with the success of the company due to his effective marketing schemes. In later life, he donated large amounts to various charities, particularly those dealing with children. The School of Business at Adelphi University

Adelphi University

Adelphi University is a private, nonsectarian university located in Garden City, in Nassau County, New York, United States. It is the oldest institution of higher education on Long Island. For the sixth year, Adelphi University has been named a “Best Buy” in higher education by the Fiske Guide to...

 and the School of Education at Hofstra University

Hofstra University

Hofstra University is a private, nonsectarian institution of higher learning located in the Village of Hempstead, New York, United States, about east of New York City: less than an hour away by train or car...

are both named after him.