Marriage to William Nickuls mentioned in the Shoemaker Pioneers: the early genealogy and history of the colonial Shoemaker families who came to America before the Revolution; Benjamin H. Shoemaker; 1975 pg 301 (marriage date as 1 Jul 1789 in Amherst County, VA)
"Virginia Marriages, 1785-1940," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:XR77-Q4B : 11 February 2018), William Nickuls Or Nickols and Susannah Showmaker Or Shoemaker, 06 Jul 1789; citing Amherst County, Virginia, reference P 51; FHL microfilm 30,273.
Thank you to Tom Beck for creating WikiTree profile Shoemaker-860 through the import of Beck_asof_06-05-2013.GED on Jun 5, 2013. Click to the Changes page for the details of edits by Tom and others.
It may be possible to confirm family relationships with Susanna by comparing test results with other carriers of her ancestors' 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 Susanna: