What was unique about the Civilian Conservation Corps in Oklahoma?

The correct answer here is that it had the largest group in the nation.

Explanation:

Civilian Conservation Corps was a program started by Franklin D. Roosevelt as a part of his New Dead policies. This was a program for the unmarried, unemployed men that gave them unskilled manual labor jobs that were connected with conservation of the natural resources. The size of the corps varied from state to state with Oklahoma having the largest group of young men that were employed in the program.