 Fendall became the Editor of the "National Journal" in Washington, D.C. from 1824 to 1830, which was established by his close friend Peter Force (1790–1868), who at one time was Mayor of Washington, D.C. President Monroe appointed him judge of the Orphan's Court for Alexandria County.Fendall married Mary Elizabeth Young (1804–1859) in Alexandria, Virginia on March 31, 1827.Elizabeth was the daughter of Brig.