Traphagan was born on December 27, 1961, in Boston, Massachusetts, and grew up in the Boston area, attending public schools in Framingham and Chelmsford, where he graduated from Chelmsford High School.
Traphagan was born on December 27, 1961, in Boston, Massachusetts, and spent his childhood in the Boston area. He attended public schools in Framingham and Chelmsford, where he graduated from Chelmsford High School.