Paul, you have:

James Nickens-Rachel Simpson....22 Dec 1808 Ross County
Agga Nickens-Thomas Nelson......13 Oct 1808 Ross County
Lot Nickins-Caty James..........27 Jul 1820 Ross County
Lot Nickins-Nancy Robinson.......7 Dec 1825 Ross County
Esther Nickens-Berry Anderson...10 May 1815 Ross County
Moses Nickens-Betsy Griffin.....12 Jan 1827 Franklin County

Others prior to 1820 per your request are:

Elizabeth Nickens-Bolen Caap....7 Jan 1815 Ross County
John Nickens-Ellener Taylor....28 Sep 1817 Pike County
Keziah Nickens-Phileman Lawman..6 Jun 1813 Ross County
David Nickens-Rachel Alexander.13 Jul 1820 Pickaway County
Polly Nickens-James Cambridge..14 Aug 1804 Ross County

Hope this helps,

Art Thomas