Ervin Kolk - Erwin Kolk son of Henno Kolk

I am Erwin's granddaughter. Erwin's mother Leontine Johanna Kolk divorced Henno at some point and married a Tusty. They moved to the USA I believe in 1924 when Erwin was 14.
Erwin married Louise Mazzari and had Jeanette, Claudette and Richard.
As you mentioned he did die in 1971.
Any information you have about Henno's death, what he did for a living and where he lived would be appreciated.
Thank you
Linda