William Bilderback married Mary McCallister or McAllister in
Fleming County, KY, on 19 Sep 1799 and later married her sister, Ruana.  

From Talley's NORTHEAST KENTUCKY RECORDS are marriage records of James and
Sarah McCallister's children: 
Nancy McCallister m. John Thompson, Fleming County, KY, 11 Apr 1799
Mary (Polly) McCallister m. William Bilderback, Fleming County, 17 Sep 1799
James McCallister m. America Young in Greenup County, KY, 6 Jan 1810
Margaret (Penny) McCallister m. John A. Wilson, Fleming County, 6 Aug 1812
Sarah McCallister m. Adam Lee in Fleming County, 20 Mar 1815