For anyone interested in this John McQuown, that was posted.
Md. 8 Apr 1818 Washington Co., Virg. McQuown, John & Harriet Duff by Edw. Crawford - - - - - John went on to IL. One of the children John C. McQuown was in Co.1 86th ILL He was born Oct 11 1824 d Mar 15, 1902 His wife was Mary Jane Simpson was born Feb 16th 1824 and died May 28th 1899. Other children of their's were: Bellvina, died at age 9 in 1874 William R., died at a 1y4m in 1852
Also buried at the same place, but not listing the parents names: Martha A. died at age 21 in 1860 Samuel in 1876 at age 49 Sarah Ann mother 1833- 1911 and her son Harrison 1873 - 1951 This source is from a Cemetery Book from Smithville Cemetery in Peoria Co. IL.
I then looked at the 1880 Census of Logan Township, which is just down the road about 5 miles and it lists John C. and his wife Mary J. John C. age 55 born in IN father bVA and mother bVA Mary J. a 56 bKY fbVA mbVA with two other children not buried with them a Mary L age 19 and Cerila age 12
Then I did a search in the LDS on line and found John C. listed as the son of John Reyburn McQuown and Harriet Duff.