Dear Angela and Gaby I do not know if the names Kallis/Collis are relevant to Kalisch/Collins but I hold a copy of the Hyamson family tree of Isaac of Kalisch d 16.12.1783 Bristol which includes links to Hyman Collins b 1780 d 1 Grove Terrace Nottinghill 31.8.1835 m Mary Davis. These lines are nothing to do with me but I copied them on behalf of an Australian contact who has them in his lines. You are welcome to a copy of the 4 pages if they are relevant. Dr Phillip Kirby Norfolk England