 Mr. Fendall had one son Lt. James Robert Young Fendall (1838–1869) who fought for the Confederacy, and two others who sided with the North.His son Maj. Philip Richard Fendall III (1832–1879), was a Lieutenant in the Union Marine Corps., and another son, Clarence "Claude" Fendall (1836–1868) was in the U.S. Coast and Geodetic Survey, responsible for drafting maps for the Union Army.Fendall died February 16, 1868 at his home in Washington, D.C. at 1