Under his management , the cooperative became the largest farmer 's cooperative in the world .
While he was a professor , the Cooperative Grange League Federation Exchange , a failing farmer 's cooperative , requested Babcock 's help .
Under professor 's management , the cooperative became the largest farmer 's cooperative in the world .
While he was a professor , the Cooperative Grange League Federation Exchange , a failing farmer 's cooperative , requested Babcock 's help .