John Hecker 
General Notes
Source 1.
They had two daughters named Anna Marie and Sibylla Veronica.
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Children
Anna Marie Hecker
Anna Marie was born on July 22nd, 1759. She died at the age of 53 on October 12th, 1812.
Sibylla Veronica Hecker
Sibylla Veronica was born on July 6th, 1767. She died at the age of 76 on March 8th, 1844.