He left nothing behind written in English or German, just his Baptismal notes in what seems to be Swedish. He had a good dozen male children of age to serve, and they all did so ~ the white ones, the Indian ones ~ all on the American side ~ mostly as scouts ~ the toughest jobs.
Note, the writer wrote about real people in the Revolution on the New York frontier, but he didn't use a single real name, nor did he leave behind a cross reference list.
These you mention stories are priceless...