According to the book, "Early German Settlers of York Co., PA" by Keith A. Dull, Johan Nicholas Bohn was married twice. His first wife was Anna Maria m. abt 1752, his second wife was Anna Elisabeth m. about 1755/56. This was in the Manchester Twp section of the book. No last names were given for the wives.
Jacob is listed first in the list of children, but no other information follows his name.
There is a daughter Elisabeth b. abt 1756 who m. the son of Johan Casper Lichtenberger - Johan Georg b. Apr 1, 1754, bapt at Christ Lutheran on Apr 21, 1754.
There is no daughter named Elisabeth listed for Casper Lichtenberger.
In the Christ Lutheran Church records of the 18th Century, John Casper/Caspar's spouse is listed as Anna Clara and Clara.