Did you check the Naturalization records under BLINDER? In a lot of cases
(including a cousin of mine, who changed the name >from BLINDER to BLONDER,
the name change took place during the naturalization process. We found the
naturalization under BLINDER, with a document changing the name to BLONDER
as part of the process.
BLONDER, HURWITZ, KISBER, KOTTLER, MAIMON, NADLIN >from Belarus, near
LEVINSON (LEWINSOHN), >from Mariampol
BASKIND, ALPER, ARIAN >from Ilya