My grandfather Morris Gerber sailed >from Bremen to Philadelphia sometime in the late spring/ early summer July 1910. On his Naturalization form, it says he arrived July 1st. In checking ship's manifests, info, I found there was a Kalyn and a Koln and that the dates of the sailings do not quite add up to the info I have. Does anyone else know about these ships or have more info on going thru Bremen or arriving in Philly?