Davis worked as a saddler. He owned a farm of 125 acres (51 ha).[1] During the Revolutionary War, he worked as a quartermaster. He was taken as prisoner of war by the British during the Battle of Long Island.[1]
Davis married Anna Schenck, descendant of General Schenck, of Brooklyn, New York. They met while was a prisoner of war. They had nine children, Willemina, Harriet, Maria, Julia, Adriana, Nicholas, Nathan, Hannah and Thomas L. His daughter Maria married John G. Wersler, a major who served in the War of 1812.[1][3] He was a Presbyterian.[1]