Isaac Abram Feinstein was Ari’s 4x great-grandfather. He was born in about 1827 in Polangen (now Palanga), on the Baltic coast of Lithuania, and died on 23 March 1901 in Libau (now Liepaja), which is further north on the same coast, in Latvia.
We don’t know much about him, but some records are available on JewishGen, including one from the All Lithuania Revision List Database from 1845 (below):
and one in the Latvia Deaths Database:
Isaac (called Itsik) and his wife Sheva had six children that we know of. Three of these children (Charles, Jacob and Aron Feinstein) went to South Africa, but a daughter (Johanna or Jennie) went to Asbury Park, New Jersey, where she married a man called Louis Solomon, proprietor of an automobile shop.
Having been in touch with her descendants, it was nice that DNA testing told us that she really was from the same Feinstein family.
Ari, this shows how you are related to Isaac: