Montgomery was born in SEP 1858 in Lonaconing, Allegany Co., MD, the son of unknown parents.
His wife was Laura Hotchkiss, who he married on 19 OCT 1884 in Lonaconing, Allegany Co., MD. Their seven known children were Montgomery (1883-?), Ellen 'Ella' (1884-?), John (1886-?), Ann R. (1888-?), Marion (1889-?), Elizabeth (1891-?) and Harry (1893-?).