Mississippi | Mississippi River | Federal Communications Commission | European Commission | Royal Commission | Jackson, Mississippi | Canadian Radio-television and Telecommunications Commission | University of Mississippi | Federal Trade Commission | Vicksburg, Mississippi | Electoral and Administrative Review Commission | United Nations Economic Commission for Europe | forestry | U.S. Securities and Exchange Commission | United States Atomic Energy Commission | Toronto Transit Commission | International Electrotechnical Commission | Hattiesburg, Mississippi | Oxford, Mississippi | Meridian, Mississippi | Erie Canal Commission | International Whaling Commission | Independent National Electoral Commission | Commonwealth War Graves Commission | Warren Commission | Army of Mississippi | Natchez, Mississippi | Mississippi State University | International Commission of Jurists | Federal Election Commission |
During the 1930s, Cain worked with the Mississippi State Forest Service (now Mississippi Forestry Commission) and was Project Superintendent at the Civilian Conservation Corps Camp F-16 in the Ramsey Springs Community.