I guess. I couldn't find an independent confirmation of that. I'll go look at the Yizkor book I guess. We should update Ick Sapirstein or Sapirsztejn's profile. I looked them up in Lomza on Jewish Gen but didn't find anything yet.
There are Sapirstein, Steinsapir, and Roterosen. The last two are the same family, not sure about Sapirstein. I have done some research on those families, about whom a lot has been written.