Mary Helen Gannon

• Name	Mary Helen Gannon
  Gender	Female
  Person ID	I11620	Branches and Roots
  Last Modified	13 Feb 2026

  
  

  Father	Thomas John Gannon,   b. 1 Aug 1908, Ireland d. 1 Aug 1965, Cleveland, Cuyahoga, Ohio, USA (Age 57 years)
  Relationship	natural
  Mother	Mary Weir,   b. 29 Aug 1909, Dooniver, Achill Island, County Mayo, Ireland d. 1 Mar 1987, Cleveland, Cuyahoga, Ohio, USA (Age 77 years)
  Relationship	natural
  Family ID	F4127	Group Sheet  |  Family Chart

  
  

  Family	Michael Patton
  Family ID	F4133	Group Sheet  |  Family Chart
  Last Modified	13 Feb 2026