Here's the info I have on this line (not my research):

William Allender (birth: ?)(married: Anna Jackson)
one of their sons was George Allender (birth: 1811)
George married 1st: Mary Edington,
2nd: Sarah Thompson,
3rd: Jane Blair
Among children of George Allender and Jane Blair-Allender was William Allender (birth: 12/4/1830 Ohio)
William Allender married: Ruth Stallcup
William and Ruth Stallcup-Allender children were:
John W. Allender (m. Angline Askren)
Francis Allender
Sarah Anna Laura Allender
Robert Lincoln Allender (m. Elmira Gillespie)

Hope this helps
Chris Fossitt