Although Michael lives in Westwood now, he was born in Mission Hill, grew up in Dorchester, (yes OFD - St Gregory's). He lived in West Roxbury prior to moving to Westwood 14 years ago. Michael lives there with his wife, Linda (Carroll) who is originally from West Roxbury and their three children, Marissa, Christopher, and Julie. Marissa attends Bentley University and Christopher is in his first year at Providence College.
His dad, Frank Walsh is a retired Boston Police Officer (C-11 & A-1), and his mother Cathy, is a retired Vice President of Meetinghouse Cooperative Bank. They still reside in Dorchester. His siblings are Cam Walsh (Canton) Carolyn Kain (Dorchester) and John "Jack" Walsh (Idaho).