By Jason Claffey
The service will be held at St. Patrick’s Church, located at 212 Main St. from 3 to 8 p.m. The funeral will be held at the church Wednesday at 10:30 a.m.
Walsh, who lived in West Roxbury, grew up in Watertown. His father and uncle, now deceased, served on the Watertown Fire Department. His cousin, Tom, is currently a captain there.
Walsh was married and had three children all under the age of 10.
Watertown police issued a traffic advisory for Walsh's services.
Close to 20 more first responders were hurt in Wednesday's fire. Officials say the blaze may have started in a heating system, according to Boston.com. Arson was ruled out.
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