John Schultheis Family: Argentina

Greetings. I am a part-time family historian researching my Russian-born German family roots. By invitation of Catherine the Great, my German ancestors immigrated to Russia, settling in the Huck and Norka colonies in Saratov, Russia. During the late 1800's and early 1900's emigration from Russia brought my family lines to the United States and Argentina. Primary surnames of interest include: BOHL, KAHLER, STERKEL, SCHULTHEIS OR SCHULDEIS, FEUERSTEIN, ZITTERKOPF OR ZITTERKOPH, SCHLEUNING, SPREIER AND HUCK.