I just found a death record for an ancestor named John G. Lipp who died in 1910 in Philadelphia. On it his father is listed as "John Gottlieb". I am not sure if this means that Gottlieb was anglicized to Lipp, or if John Gottlieb was not a full name (maybe the father's name was John Gottlieb Lipp?) The family came from Wurttemburg (city unknown). Anyway, I am wondering if Gottlieb is a Jewish name (I am not religious and have friends of all stripes; Jewish ancestry would be very interesting to me).