Individual Details

John Flinn married Mary Flinn, 17 Oct 1816, Jackson Co, IN. He could be a son of William since that's where William was living. Mary doesn't seem to be William's daughter because she married John Speer in 1817 in Jackson Co. Jacob also had a daughter Mary who was married first to William Evans and then to Isaac Williams, 1825, in Lawrence Co IN. One online database maintained that she was Mary Guthrie; but she was only 16 when she married John Flinn so really not old enough for a previous marriage.

This might be John in 1830 in Lawrence Co but he seems too young and there aren't enough children.
1m under 10. 1m 20-30. 1f 15-20

1840 Census. Lawrence Co IN
John Flinn. 2m under 5, 1m 5-10, 1m 40-50. 1f under 5, 1f 10-15, 1f 15-20, 1f 30-40

1850 Census. Lawrence Co IN, Hh 1439
John Flinn, age 56, b. NC. Polly age 49, b. VA.
Children born IN: Hugh 20. Nancy J. 14. Jacob B. 12. John P. 10. Susanna 7.

Birth

1794

North Carolina

Father	Jacob Flynn (1759 - 1846)
Mother	Sarah Martin ( - 1847)
Sibling	Martin Flynn (1786 - 1836)
Sibling	Elizabeth Flynn (1787 - 1867)
Sibling	Mary Flynn (1793 - 1870)
Sibling	William Flynn (1797 - 1867)
Sibling	Josiah Riley Flynn (1800 - 1815)
Sibling	George Flynn (1802 - 1896)
Sibling	James Flynn (1805 - )
Sibling	?Daniel Flynn (1800 - )
Sibling	Hugh Flynn (1808 - )
Sibling	Allen Flynn (1811 - )