No more info is currently available. Can you add to this biography?
The Germanna Record, No. 13 - The Blankenbaker, Weaver, and Wilhoit Families, The Memorial Foundation of the Germanna Colonies, Inc., Publishers, 2006
Wilhite/Wilhoit & Allied Descendants of Johann Michael and Anna Maria (Hengsteler) Wilheit 1671-1994 Compiled by Mary F. Mickey
Somewhere there is a record of her death on 3 October 1842, but I think this is incorrect. Her last child was born in 1806, and her husband remarried in 1808. So the date of death has been set before the date of her husband's 2nd marriage. 
It may be possible to confirm family relationships with Katherine by comparing test results with other carriers of her mitochondrial DNA.
However, there are no known mtDNA test-takers in her direct maternal line.
It is likely that these autosomal DNA test-takers will share DNA with Katherine: