On Jacob Bergstresser and Edwin Lot Bergstresser I put links to the Inventions they did. One was a Canadian patant but was wondering if you could post the pictures of inventions on pictures as the links had photos of inventions. Family story handed down Edwin Lot Bergstresser invented some part for Kodak camera and took photos of President Lincoln only found bit information on inventions so if anyone comes up with more then I provided please let me know lol.
Billie
Added him to another project also
https://www.geni.com/projects/Early-Photographers-19th-Century/23798