Hello, If you have not already found it. There is a Marriage Index for William Grant and Catharine Hardwick in Conway Co. Dated 20 Jul 1854. I believe Caroline and Catharine may be the same person. The spelling of names when transribed can differ as it is easy to misread the records. The fourth child on the 1860 census, Elijah, is actually Elige. The William Grant of Van Buren Co. owned land in sections 29 & 30. There was a George W. Bean who owned land in sections 29, next to William. I hope this helps.