Did you do DNA? My great grandparents were Aizik Horowitz married to Ester Kaufman from Minsk but I don't have any records of the names you mention. If there is a connection I would love to know, but DNA may be very helpful in your search and make sure you upload to gedmatch and other sites.
Boynton Beach, FL
Researching Kaufman, Horowitz, Hurwitz/Gurevitz, Potashnik/Potasnik/Perlman, Perlmutter/Perelmutter, Lipsky, Leykin/Leikin, from Gomel, Minsk/Russia, Rosen and Resnick from Russia