Stapleton, Benjamin Franklin (1869-1950) Has fatal heart attack. News May 1950 p.l. Post May 23, 1950 p.l. Ruled city government for 20 years. Post May 23, 1950 p.3. Denver loses a civic leader (editorial on the former mayor of Denver). Post May 23, 1950 p.14. City pays tribute to.Post.May 24, 1950 p,1. Buried; throngs attend rites. Post May 25, 1950 p.55. Product of old political SCHOOL (Lee Casey's editorial). News Aft flay 24, 1950 p.27.