Rabbi Finkel who translated many books (some as fundraisers for Yeshiva Beth Moshe, Scranton, PA) lives in Boro Park.
We have a book that lists phone numbers by address – and he is listed there as Jack Finkel.
I don’t know if Yeshiva World allows posting phone numbers, but do a search at whitepages dot com for Jack Finkel in Brooklyn, New York. He lives on forty seventh street, and is listed. The listing may alternatively be Jack A Finkel
Hatzlacha
(I haven’t logged in or posted in years… I’m going back to routine lurking now!)