Hi Bob,
This link if I read it right mentions a book that might have a answer for you. It covers the years 1929 /1933. also notice the link reads that they all returned. Hope I understood your query ?? and answered right.
Mary
no relation
JSTOR: Technical Assistance of the American Enterprises to the ...The Russian Review gave Russia full rights to make, sell, and use Ford units and machinery and to ... and all Ford employees returned to the United States