ESCAPES FROM ALCATRAZ
FEDERAL PENITENIARY WARDENS

James A. Johnston Edwin B. Slope Paul J. Madigan Olin G. Blackwell
James A. Johnston
1934 to 1948		 Edwin B. Slope
1948 to 1955		 Paul J. Madigan
1955 to 1961		 Olin G. Blackwell
1961 to 1963

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