There are two marriages for a Rebecca Adamson in Wayne Co. One to Charles Howell on 21 Dec 1848 and one to Owen Williams on 16 Sep 1841. A World Connect GEDCOM by Suzanne W. Watt <Swatt1010@aol.com> has Owen L. Williams as her husband.
1850 Census gives her age as 39, born in Tennessee. She does seem to be living with Owen L. Williams. If her birthdate is correct, she was 37 at the time of the Census.
The Pike Family History omitted Rebecca.
Owen & Rebecca lived in Hamilton County for the 1850 Census. His parents to be John Williams and Rachel Hodson [Genforum - Williams Family]
1860 Census. Kansas Territory, Lykins County, Mound Twp, p.68, Hh 504
Rebecca ADAMSON and Owen L. WILLIAMS had the following children:
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