Kamenschik

The Kemenschiks or Bukhtarman are a group of Russians who descend from the earliest settlers of Siberia. They are Old Believers and originally lived along the Kerzhenets River in Nizhegrodskaya. Most of them were stonemason. They latter moved to the banks of the Bukhtarma River.

ources

Wixman, Ronald. "The Peoples of the USSR", (Armonk: Sharpe, 1984) p. 32