US National Archives
Nara: Founding Fathers: Delegates to the Constitutional Convention
The National Archives and Records Administration (NARA) provides biographies of all 55 delegates to the Constitutional Convention.
US Army Center
U.s. Army Center of Military History: Nathaniel Gorham
A brief but detailed biography of this delegate from Massachusetts to the Constitutional Convention. He also served as a delegate to the Continental Congress and for a time was its president.
US National Archives
Nara: Founding Fathers: Massachusetts
Gives biographical details on the four delegates from Massachusetts to the Constitutional Convention: Elbridge Gerry, Nathaniel Gorham, Rufus King, and Caleb Strong.