Individual Details

I have an autsomal DNA match to a descendant of Adam. I'm not sure about the reliability of the database. There are numerous duplications of children and wives. The line shows that Adam had a daughter Eve who married a Thornburgh. An online pdf book of this family shows no daughter of Adam named Eve. Adam's brother Michael William Coon did have a daughter Eve but she married John Stipp and lived in Indiana. There was no daughter Eve in this family in the following WorldConect database which seemed to be backed by research of the family.

WorldConnect file:
Baptism sponsors John Adam and Sophia Krantzdorf.
"The maiden name of Adam Coon's wife is a deduction from the records of St. Luke's Church in Chanceford Twp, York County. There exchanges of sponsorship, three baptisms in all, between the Adam Gohns and the Nicholas Strayers makes some relationship between the two couples practically necessary. Nicholas Strayer's wife was named Maria Catherine; Adam Gohn's sister Catherine is fully accounted for as the wife of John Custer (K); it is most unlikely that two sisters would have been named Maria Catherine and Anna Catherine considering the German penchant for general use of second names. Therefore by the only remaining permutation, Adam's wife must have been Nicholas Strayer's sister.
"To carry out this proposition still further Nicholas Strayer, either this or an older man of the same name, was an officer at St. Luke's and owner of the Chanceford Twp., property abutting on lands of John and Jacob Gohn. (York County, PA Deeds, 2C:62) The two families evidently left York County together as Nicholas Strayer turns up again as appraiser of Adam Coon's estate on 20 April 1790 in Berkeley County, VA. Nicholas died in Berkeley about 1813, and a number of his descendants moved on to Fairfield County, OH, but they have no further demonstrable connection with the Coons.
"During the Revolutionary War Adam Coon (also Koon and Kuhn) of Chanceford Twp, was a private, along with his brothers Jacob, John and Michael, in the 8th Company, under Capt. Thomas McNary, 5th Battalion of the York County Militia according to a roll dated 26 April 1778. From 10 August to 10 October 781 Adam Coon served in a detachment of York County Militia under the command of Capt. Simon Coppenhaver detailed to guard prisoners of war at Camp Security. (Pennsylvania Archives, Ser. 6, Vol. 2, pp 548, 632)
"In the Chanceford Twp, tax lists 779-1783 Adam Coon was credited with ownership of 50-60 acres of land; in 1783 his establishment there was described as consisting of 60 acres, one house, two horned cattle, two horses, two sheep and seven inhabitants. (Ibid. Ser. 3, Vol. 21)
But soon after the date of this assessment, Adam and his family left Pennsylvania to moved southwestward into the Shenandoah Valley as far as Berkeley Co., Virginia (now West Virginia).
On 20 April 1790 three appraisers, Nicholas Strayer, Abraham Morgan and David Welshaus turned in an inventory, not totaled, on the Estate of Adam Coon. On 2 Jan. 1797 the same three plus John Canday made a further appraisal of this estate; in this latter instance Catherine Coon was mentioned as Administratrix. No distribution or account is listed in either record. (Berkeley Co., WV Will Books, 2:55; 3:94)
In 1795 the widow Catherine Coon was living in the vicinity of Shepherdstown, Berkeley, VA, and was a staunch supporter of St. Peter's Evangelical Lutheran Church there, to whose building fund she gave £15 in that year, where her grandson Michael Gohn, Jr. was baptized on 30 Aug. 1795 and where her daughter Rosina Gohn C5 was sponsor at the baptism of a cousin on 12 July 1795. (On This Rock: The Story of St. Peter's Church, Shepherdstown, 1765-1795, 1970, by Gladys Hartzell)

There was an Eve Coon who married a James Thornburgh:
1879 History of Menard & Mason Counties
Chicago
Published by: O.L. Baskin & Co., Historical Publishers
PETER A. THORNBURG
Page 780
PETER A. THORNBURG, farmer, Sec. 34; P. O. Havana; was born in Harper's Ferry, Md., Sept. 19, 1818, but removed to Fairfield Co., Ohio, when about 10 years of age, with his father's family; the subject of this sketch came West in the fall of 1837, and, after stopping at Havana, this county, about four months, returned to Ohio. In November, 1840, he came, with his brother Eli, and located in Fulton Co., and about two years later removed to Havana, where Mr. Thornburg engaged in blacksmithing, and established the first permanent blacksmith shop in Havana. In 1850, he removed to the farm where he now resides, and, until about fifteen years ago, worked at his trade, and has since followed farming. In 1868, Mr. Thornburg laid out the town of Peterville He was married, Sept. 26, 1842, to Miss Leah, daughter of James Milleson; she was born in Belmont Co., Ohio, Oct. 7, 1828; by this union there were fourteen children, four of whom are living-John M., Mary J., Wife of Edward Eddy, who resides in Kansas; Geo. S. and Allen C. The deceased are-Boanerges, died Dec. 12, 1845; James L., Sept. 22, 1848; Mahlon A., Feb. 7, 1852; Jonathan K., July 22, 1854; Malvina, Sept. 1, 1864; Livingston P., Set. 12, 1869; Virginia L., Dec. 16, 1870; Maribe E., March 7, 1872; and Emily A., July 2, 1877. His father, James S., and his mother, Eve (Coon) Thornburg, were both natives of Virginia. Mrs. Thornburg's father, James Milleson, was born in Pennsylvania Sept. 17, 1788, and died in Fulton Co., Ill., Jan. 29, 1879. Her mother, Dorothy (Knight) Milleson, was born in Pennsylvania May 8, 1791, and died in Kilbourne Township, this county, May 17, 1857.

Birth	18 Feb 1742/43	York County, Pennsylvania
Marriage	Ca 1765	York County, Pennsylvania - Anna Catherine Strayer
Death	Bef 20 Apr 1798	Berkeley County, Virginia

Spouse

Anna Catherine Strayer (1743 - )

Father	Johann Gohn (1714 - )
Mother	Anna Rosina Crantzdorf ( - )
Sibling	Johann "John" Coon (1740 - 1791)
Sibling	Michael William Coon (1750 - 1813)