Looking for any information on Frank Kaltenbach, b. abt 1868, Detroit, Michigan and wife, Elizabeth Thompson, b. 2/20/1870, London, Ontario and children, 1) Alice, 2) Frank, 3) Blanche, 4) Alfred, 5) Julia, 6) Vivian, 7) Harry. Blanche was my paternal grandmother. Some members of the family changed their surname from Kaltenbach to Kaltenback. Many living ancestors known to be in and around London, Ontario.