The only BERGER I find is a Frederick Julius, b Sagenroth, Switzerland, Apr. 1740, son of a Ref. Chh. minister: matric. Basel, 22 Oct 1760;commissioned for Pa., 27 Mar, 1765; arriv. Philadelphia before 16 Oct. 1765. There is a little more that tells all of the churches that he was associated with. If this is "yours", let me know and I will send the rest. Susan