Letter from Marc Thompson dated 25 Nov 1997
Adam Frantz, his son, b. 1788, d. 1819, m. 6 Oct 1811 to Susanna Geiseman (1788-1826). On 19 May 2017, Lorraine Frantz Edwards traced on Ancestry.com and there appears to be no connection to the Immigrant Michael Frantz and Immigrant Christian Frantz family trees.
Digitized Library of Family History 