My name is Mariano Polack. My great-great grandfather Leib came to Argentina in 1881 or so from Smotrich, Ukraine.He had a cousin Abram, son of Ichiel-Zus, a brother Yankel Leibish and one more brother (Ichiel also, although this would contradict with jewish tradition.Don't know of any sisters.
Could Yankel-Leibish be Yankel David? Could his father Itzakbe Ichiel? I think this could be something... Please let me know!