John Mark Gannon, Date of Birth, Place of Birth, Date of Death
TweetJohn Mark Gannon
Catholic bishop
Date of Birth: 12-Jun-1877
Place of Birth: Erie, Pennsylvania, United States
Date of Death: 05-Sep-1968
Profession: Catholic priest
Zodiac Sign: Gemini 
About John Mark Gannon
- John Mark Gannon (June 12, 1877 – September 5, 1968) was an American clergyman of the Roman Catholic Church.
- He served as Bishop of Erie from 1920 to 1966, and was given the personal title of Archbishop in 1953.
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