Ancestors of Robert David O'Hara

             /--David George O'Hara  b. 1896 at PA
Robert David O'Hara  b. 1920 at 
             |               /--Issac Lindsey
             |       /--John Bruff Lindsey  b. 27 OCT 1864 at Mansfield, OH  d. 23 JAN 1910
             \--Lillian Catherine Lindsey  b. APR 1893 at PA
                     |       /--Jacob E. Mumma  b. 1840 at Cumberland Co., PA  d. 1903
                     \--Jennie Esther Mumma  b. 12 MAY 1870 at Cumberland Co., PA  d. 4 MAR 1943
                             \--Marguerite Jane Boyer  b. 26 FEB 1845 at   d. 15 APR 1874