http://www.d-blade.com/http://www.abc.net.au/science/slab/testost/story.htmYears of often extraordinary investigations culminated in the production of synthetic testosterone in 1935. The success of Butenandt and Ruzicka earnt them the 1935 Nobel Prize in Chemistry. And so, the modern persona of this hefty hormone was launched.First link shows that D-bol was discovered within Clancy Ross' time and could possibly have used it. 
The second link shows that testosterone itself was discovered before Ross had ever competed, and it was available to him. 
Not sure where Adonis got his info from regarding contest history, but here is what Muscle Memory had:
http://musclememory.com/show.php1945
Mr America - AAU, Winner
Mr America - AAU, Most Muscular, 1st
1946
Pro Mr America, Winner
1948
Mr USA, Winner
1949
North American Championships - IFBB, Winner
Mr USA, 2nd
1955
Universe - Pro - NABBA, Tall, 1st
1956
Mr USA, 2nd
And here is his magazine appearances, all the way to the 90's. 
1945 August       Strength and Health
1945 October   Vol 5, Num 4   Your Physique
1946 December   Vol 2, Num 2   Muscle Power
1947 July       Strength and Health
1947 October   Vol 8, Num 1   Your Physique
1947 December   Vol 2, Num 12   Chicago Bodybuilder
1948 February   Vol 4, Num 5   Muscle Power
1948 June   Vol 9, Num 3   Your Physique
1948 July   Vol 8, Num 2   IronMan
1948 July   Vol 6, Num 2   Muscle Power
1948 December   Vol 7, Num 1   Muscle Power
1949 June   Vol 8, Num 1   Muscle Power
1949 June   Vol 11, Num 3   Your Physique
1950 January   Vol 10, Num 1   IronMan
1950 January   Vol 9, Num 2   Muscle Power
1950 April   Vol 13, Num 1   Your Physique
1950 October   Vol 10, Num 5   Muscle Power
1950 October   Vol 14, Num 1   Your Physique
1951 June   Vol 12, Num 1   Muscle Power
1951 August   Vol 15, Num 5   Your Physique
1951 December   Vol 16, Num 3   Your Physique
1952    Vol 1, Num 3   Mr Universe
1952 February   Vol 81, Num 4   Health and Strength
1952 July   Vol 17, Num 4   Your Physique
1952 October   Vol 14, Num 5   Muscle Power
1953    Vol 1, Num 8   Mr Universe
1953 March   Vol 15, Num 4   Muscle Power
1953 April   Vol 12, Num 5   IronMan
1953 October   Vol 1, Num 3   Muscle Builder
1953 December   Vol 1, Num 4   Muscle Builder
1954 January   Vol 16, Num 5   Muscle Power
1954 March       Reg Park Journal
1954 June   Vol 17, Num 5   Muscle Power
1954 December   Vol 3, Num 5   Muscle Builder
1955 April   Vol 4, Num 3   Muscle Builder
1955 June   Vol 18, Num 5   Muscle Power
1955 September   Vol 9, Num 9   The Bodybuilder
1956 March   Vol 19, Num 2   Muscle Power
1956 November   Vol 85, Num 24   Health and Strength
1957 November   Vol 20, Num 8   Muscle Power
1958 March   Vol 87, Num 7   Health and Strength
1958 October   Vol 1, Num 6   Muscle Builder
1959 June   Vol 2, Num 4   Muscle Sculpture
1963 March   Vol 13, Num 5   Muscle Builder
1995 January   Vol 6, Num 4   Hardgainer
1996 April   Vol 122, Num 2   Health and Strength
So, Adonis, Clancy very well could have used juice. Not to the extent that others do today, but it is known that Bill Pearl used. So if Pearl used, you think the rest of the group would be clean as your boyfriends dick?