Individual Details

I'll believe he was born about 1797. And, I believe he was a son of Thomas, not Laughlin Flynn as often seen. There are records of what appears to be two men named Josiah Flynn - one later found in Morgan Co would be more likely Laughlin's son.

NC Marriage Bond: Josiah Flin to Caty Moser, 12 Feb 1817, Stokes Co. Thomas Flyn, bondsman. Wit: M.W.B. Armstrong.

Flinn book says moved to Greene Co IN in Nov, 1830.

Found with most members of his family in Greene Co IN in 1850.
The Flinn & Hall books give a daughter Milly born in NC in 1818 and married to Israel Long on 14 Mar 1836. The marriage record does exist. However, in the 1850 Census is Israel Long and his wife is Pamelia [Milly could work as a nickname] born in 1816 in NC, making her a bit old to be a child of Josiah & Catherine who married in 1817. The oldest child is 11 and there is no significant gap between children to suggest a 2nd wife for Israel Long. The apparent daughter of Josiah & Catherine named Catherine, age 13, living at home in 1850 was omitted from the Flinn book but included by Hall.

Possible Black Hawk War Service. A Josiah Flinn is listed as a Private on the Muster Roll of Capt. Julius L. Barnsback's Company of Mounted Volunteers, commanded by Brig. Gen. Samuel Whitesides, mustered into service at Beardstown, Illinois, on 28th Apr 1832. 120 miles from the place of enrollment. Enrollment was at Edwardsville, which is in Madison Co, IL.
John J. Hardin was the Inspector and Mustering Officer that countersigned the muster roll. It is said to be in his handwriting.
Another roll made out on May 28 gives the place of the muster-out to the place of enrollment as 284 miles. A property roll, dated 27 Apr at Beardstown also exists. Both of these rolls list Joseph Flinn, rather than Josiah Flynn. As Josiah was most likely in Morgan Co along with his brother Zadock, this may well be a different man.
The Black Hawk War 1831-1832, Vol I, Illinois Volunteers; compiled and edited by Ellen M. Whitney, Illinois State Historical Library, Vol. XXXV, Springfield, 1970, p. 130-132

An Armisted Flynn also lived in Greene Co - or at least he married there on 4 Jul 1844 to Angeline Lewis. This was the same day of the marriage of Mary Ann Flinn to Chrisman Lewis. The possibility of children from a different Flynn/Flinn family should be considered. The author of the Flinn book thought perhaps Josiah's brother George had an earlier marriage with a child/children. This would seem to fit.

1840 Census. Greene Co IN
Josiah Flinn, 1m -5 [Preston], 1m 5-10 [Josiah Jr], 1m 10-15 [Squire], 1m 15-20 [Exmon], 1m 40-50 [Josiah]. 1f -5 [Catherine], 2f 10-15 [Charity & Mary], 1f 40-50 [Catherine]
The census of 1840 has not been arranged alphabetically, but all in succession are George Flinn [Josiah's brother?], Thomas Flinn [son of Josiah], Israel Long [Josiah's son-in-law], William Flinn [2nd son of Josiah], and Josiah himself.

1850 Census, Greene Co IN, Hh 93 [Hh 92 was Exmon Flyn]
Josias Flyn, Senr., age 50, farmer, b. NC. Catharine, age 45, b. NC
Children born in Indiana: Preston, age 18. Catharine age 13. and Evaline, age 11.

1860. Center Twp, Greene Co IN, Hh 765
Josiah Flynn, age 64, b. NC. Catherine, age 60, b. NC
Evaline, age 18, b. IN

Josiah and Catherine buried at Robinson, IN

Early Settlers of Green County, IN [From Southern States], compiled by William R. Henry, 1986; p.36.
1831 - NC. Josiah Flinn, b. c. 1800 NC and w. Catharine b. c. 1805 settled Centre Township. A probable brother, George Flinn, b. 1803 NC and w. Frances, b. 1811 NC, settled nearby. Probable children who settled the area were:
Thomas Flinn, b. 1819 NC and wife Sydney A., b. 1815, Oh
Exman Flinn, b. 1822 NC who m. 21 Nov 1844, Phebe Christenberry, b. 1828, IN
Squire Flinn, b. 1825 NC who m. 14 Feb 1844, Rebecca Padget, b. 1816 NC
Josiah Flinn Jr., b. 1828 NC who m. 7 May 1848, Sarah E. McDonald, b. 1826, Ohio.
William Flinn, b. 1820 NC, m. 9 Jan 1840, Elizabeth Martindale, b. 1826, OH, and settled in Jackson Township.

Early marriages (Greene Co):
Thomas Flinn to Permetia [Sydney Amelia - see above] McDonald, 24 Dec 1838
Armisted Flinn [son of George] and Angeline Lewis, 4 Jul 1844
Molly Flinn [actually Milly Flinn, Josiah's daughter] and Isarel Long, 14 Mar 1836
Charity Flinn and William Holman, 13 Aug 1843
Mary Ann Flinn and Chrisman Lewis, 4 Jul 1844
Note: All early records spell the name FLINN. However, Armistead Flynn, b. 1823, d. 1897 in interred Flynn Cemetery, Centre Twp with other os the FLYNN surname.

Early marriages in Lawrence Co:
Dicy Flinn and Andrew Spear, 12 Apr 1824
Rebecca Flinn and Abraham Sutherland, 13 Apr 1824
James Flinn and Mahala Housh, 19 Feb 1826
George Flinn and Janee Herron, 17 Aug 1826
Allen Flinn and Sarah Michaels, 1 Jan 1828
Sally Flinn and Thomas Mathis, 5 Feb 1828
Sally Flinn and Andrew Quake, 15 Jan 1829
John Flinn and Sally Mathis, 6 Jul 1829
Sally Flinn and William Shield, Aug 1833
Elizabeth Flinn and Henry Alexander, 10 Sep 1829
Martin Flinn and Nelly Crawford, 17 Jun 1830
Moses Flinn and Elizabeth Quick, 30 Mar 1831
Jacob Flinn and Melinda Herron, 16 Feb 1832
William Flinn and North America Tatum, 8 Oct 1832
Squire Flinn and Melinda Tatum, 13 Apr 1833
Malinda Flinn and James Box, 16 May 1833
William Flinn and Sally Guthrie, 12 May 1833
Thomas Flinn and Mary White, 20 Jun 1833
George Flinn and Catharine Quick, 14 Jul 1833
Aaron Flinn and Jane Edwards, 7 Jul 1833
Mathew Flinn and Martha Hopkins, 5 Dec 1833

Birth	1797	Surry County, North Carolina
Marriage	12 Feb 1817	Stokes County, North Carolina - Catherine Moser
Death	1865	Koleen, Greene County, Indiana

Spouse	Catherine Moser (1800 - 1869)
Child	Permelia "Milly" Flynn (1818 - 1895)
Child	Thomas Flynn (1818 - )
Child	William Flynn (1819 - )
Child	Exmon C. Flynn (1822 - )
Child	Squire Flynn (1825 - )
Child	Erastus Flynn (1825 - )
Child	Charity Flynn (1827 - 1911)
Child	Josiah Flynn Jr. (1828 - )
Child	Mary Ann Flynn (1829 - 1860)
Child	Preston Flynn (1832 - 1865)
Child	Catharine Flynn (1837 - )
Child	Evaline Flynn (1839 - 1909)

Father	Thomas Flynn ( - 1814)
Mother	Living
Sibling	Thomas Wright Flynn (1788 - 1846)
Sibling	Laughlin FLYNN (1790 - 1835)
Sibling	Honor Flynn (1798 - )
Sibling	George FLYNN (1803 - )
Sibling	Mary "Polly" FLYNN (1805 - )