My gggg-grandfather, Fielder Bivens, was a brother of Randall's. I have their father as Liebert Bivens, mother Elizabeth, but haven't gotten any further back than that. Randall was born 1763-1768 and died 26 Aug 1839 in Clark Co. KY. He is listed in the 1790 & 1800 census, Rowan Co. NC. Also 7 Aug 1790 in Rowan Co. NC he "being of lawful age, chooses Lewis Beard as his guardian". He married 1)Rachel Wood, 1790 in Rowan Co. NC, 2)Margaret Routt 14 May 1816 in Clark Co. KY.
http://boards.ancestry.com/surnames.bivens/448.2/mb.ashx