I haven't been following John's family much, but do have some data based on an unreliable report from IL. The maiden name of Sarah was also ALLEN, but I don't know who her parents were. She reportedly died about 1827, John on 05 JUL 1845. He may have had another sibling or two, but that will take more study. I show Aaron M ALLEN to be perhaps John's 4th child bn ca 1818 and died 04 DEC 1903, married 2X.
First wife unknown. Children were 1. Nancy J married John A MALONE 2. Avis md Rev John R BRATTON 3. Mary E md Fred L ALLIS
Second wife Jurinda S McCLINTON. Children 4. Sarah md S J STROKE 5. John Wm died age 5 6. Winnie 7. Laura md L E StJOHN 8. Henry md Clara (n ?) 9. Sam S
Aaron and his siblings
1. Andrew M md Sarah HILL 2. Mariah md#1 John SYKES #2 John HUGHES 3. William md (oops! maybe wrong family) 4. Aaron 5. Winnie md Robert IRWIN 6. Martha md Francis IRWIN 7. John Wm md Martha (n ?)
Mind you, this information came from a source I do not consider entirely reliable, and the above notes may therefore contain errors. I have another contact, descending from John's brother, William, who may have better data on John's branch.
Click on my name, locate my e-mail address, and drop me a line. We can continue sharing notes in more depth.