I am also 61 years old, and I am the Canadian girlfriend that you mentioned in your letter. Heinz was 15 years older than me. I left Canada to live in the Bahamas in 1969. Heinz wanted to join me there, but I wasn't ready for that kind of commitment. In Toronto, he was the manager of Cessna airlines. He then got involved in a plot against Papa Doc in Haiti. That gave me the creeps. I heard his plane was shot down by the Cubans. Next I heard from him, he was in Sao Paulo. I moved from the Bahamas to Karlsruhe, Germany. I was there the same time he was, but I didn't know it.
I sent Charles, his son, pictures, and he said it was his father, so it must be the same person you knew as well. Where do you live? I am back in Canada. I haven't heard from Heinz, but it would be fun to exchange some information.
My email address is email@example.com
I'd love to hear from you, Bobbie