Looking for information about Ausburn Mullenix and his decendents. Would any one know the names of his children?

Here's what I know so far:
Ausburn S. Mullenix b. 21 April, 1808 Pendleton Dist., SC, a son of Joseph and Sallie Mullenix. His parents moved to TN when he was three years old, where he was raised and educated. In December, 1842, he moved to lafayette Co., MO, where he lived the rest of his life, and owned 530 acres of land.
He married his first wife, Nancy Bratton, in 1822 TN; had 3 children; she died 1826 TN.
He married his second wife, Tirzah Dale, 1829 TN; had 7 children. Tirzah daughter of Rev. William Dale of TN.
Ausburn did not serve during the Civil War, but 2 of his sons were in the Confederate Army. One of the sons, Henry, died from a disease contracted in camp.
He and Tirzah were members of the Baptist church in Lexington, lafayette Co., MO. He served as a justice of the peace for 4 years prior to the war.
This biography further states, concerning his children in 1881, he has 6 children suviving, one son and 5 daughters.

1860 census Lexington, lafayette Co., MO
Mullenix, A. S. 51
, Tirzah 44
, Thomas 17
, Tennessee 15
, Jane 13
, John 11
, James 9
, Eliza 6
, George 4
, Alice 1
Sanford, James 18

1880 census lexington, lafayette Co., MO
Mullenix, Ausburn 71
, Tirzah 66
, George W. 22
Bullard, Alice M. 20
, William L. 23

Daughter of Ausburn and Tirzah:
Mary Frances Mullenix b. 08 Dec., 1830 near Nashville, TN d. 10 Aug., 1901 Johnson Co., MO
married Benjamin Franklin Shackelford 10 Feb., 1850 lafayette Co., MO.
son of John Shackelford and Nancy Keen, and a brother of my gg grandfather.
mary and Ben are buried Liberty cem. Johnson Co., MO. They had 11 children.

son of Ausburn and Tirzah:
James Clinton Mullenix b 05 Nov., 1850 lafayette Co., MO
d. 15 March, 1922 Jackson, Johnson Co., MO.
married Sarah A. _____

daughter of Ausburn and Tirzah:
Alice M. Mullenix b. 1859/60 lafayette Co., MO d. ?
married William L. Bullard 23 May, 1880 lafayette Co., MO
moved on to 1910 Pottawatomie Co., OK

Does any one have any connection to this Mullenix family? I am at a loss at this point.

Jim Bradshaw