Ancestors of Ardel T. O'Brien

             /--William H. O'Brien
Ardel T. O'Brien
             |               /--Isaac Brubaker Mumma  b. 26 MAY 1869 at East Hempfield Twp., Lancaster Co., PA  d. 13 AUG 1898
             |       /--Charles Alexander "Chief" Mumma  b. 20 OCT 1920 at Shiprock, Navajo Nation Territory, NM  d. 3 SEP 2011
             |       |       \--Sarah Brubaker "Sadie" Shirk  b. 10 OCT 1870 at Brunnerville, Warwick Twp., Lancaster Co., PA  d. 9 MAR 1929
             \--Sandra S. Hackenauer
                     \--Stephanie Hackenauer  b. ABT 1922 at Austria