John J. McMahon

September 1, 2021

Obituary Image


McMahon, John J. formerly of Dorchester, passed away on September 1, 2021.  Jack graduated from Boston Latin School and Boston College. He was a sports aficionado and tried and true Boston sports fan. Jack devoted much of his life to coaching sports from baseball to football and basketball. For several decades, he recruited and coached some of Boston's most talented and diverse basketball talent having founded the Greater Boston AAU boys basketball program. 

Jack was predeceased by his parents, John and Ruth (Dunton) McMahon. Loving brother of Marcia McDougall (John), Susan Livingston (Michael), David McMahon (Anita Smith), and Patricia McMahon. Jack was a beloved cousin, uncle of seven, and great uncle of 13.

Visitation in the John J. O’Connor & Son Funeral Home, 740 Adams St. (near Gallivan Blvd.) DORCHESTER. Tuesday morning from 9-10:30am followed by a Funeral Mass in St. Brendan’s Church at 11 o’clock. Relatives and friends are respectfully invited. In lieu of flowers, please consider making a donation, in Jack’s memory, to the Boys & Girls Clubs of Dorchester, 1135 Dorchester Ave. Dorchester, MA 02125. Interment in Cedar Grove Cemetery. 

To send flowers to the family or plant a tree in memory of John J. McMahon, please visit our floral store.


September 7, 2021

9:00 AM to 10:30 AM
John J. O'Connor & Son Funeral Home
740 Adams Street
Dorchester, MA 02122

Funeral Mass
September 7, 2021

11:00 AM
St. Brendan's Church
589 Gallivan Blvd
Dorchester, MA 02124

© 2021 John J. O'Connor & Son Funeral Home. All Rights Reserved. Funeral Home website by CFS & TA | Terms of Use | Privacy Policy