Paul married Mary Russell Sweetapple on 8 Aug 1917 in Wellsburg, Brooke, West Virginia. Mary (daughter of Albert Lewis Sweetapple and Lucy Katherine Russell) was born on 14 Mar 1900 in Brush Hill, Venango, Pennsylvania; died on 8 Mar 1998 in Murrysville, Westmoreland, Pennsylvania; was buried in Clintonville, Venango, Pennsylvania. [Group Sheet]

1. Lucy Kathryn Pfeifer was born on 4 Oct 1928 in Evans City, Butler, Pennsylvania; died on 1 Mar 2008 in Wesleyville, Erie, Pennsylvania; was buried in 2008 in Erie, Erie, Pennsylvania.
2. Ellis Pfeifer was born in 1924 in Pennsylvania, United States.
3. Amiel Sidney Pfeifer was born in 1919 in Pennsylvania, United States.