I'm trying to help a friend with his family tree. His Grandmother is Wilma Buck MacDonald, b. Circa 1918, still living in Illinois.(She married Robert MacDonald, a pilot in the Air Corps; he died I think in 1957; a plane he was flying crashed).Wilma's Mother's maiden name was Meredith, and HER mother's name was Poffenbarger . . . he THINKS!! Does this progression sound right to anyone??Can anyone help fill in the blanks??If so . . . THANKS SO MUCH!! . . .D.