I too was born in Winnipeg. I have lived in BC since 1967, and sometimes trying to round up addresses or phone #'s of cousins that I haven't seen in 30 yrs can be an ordeal in itself.
When I get my info on the Ottenbreits, I would prefer to email you with it. The only additional info I have gotten so far is that my Gerald probably had a sister named Florence. Not much to go on.
I will keep in touch though. Are you currently living in Winnipeg?