He was widely considered the world 's leading authority on Theodore Roosevelt .
John Allen Gable ( 1943 -- February 2005 ) was executive director of the Theodore Roosevelt Association from 1974 to his death in 2005 .
John Allen Gable was widely considered the world 's leading authority on Theodore Roosevelt .
John Allen Gable ( 1943 -- February 2005 ) was executive director of the Theodore Roosevelt Association from 1974 to his death in 2005 .