Jumbo is the mascot for Tufts University, the sports teams play under that name, and many “Tuftonians” refer to our fellow alumni, etc. as such (because “Tuftonians” is weird). It originated with P.T. Barnum who was a significant donor to Tufts, including donating the stuffed carcass of Jumbo the Elephant (one of the most popular attractions of the Ringling Brothers and Barnum and Bailey Circus). Sadly the carcass was consumed in a fire in the 1970s, except for a small remnant of a tusk.
There have apparently been a few Jumbod that have made it to the NFL as coaches, the only players I can recall are a running back in the 1970s (I can't remember his name) and Methuen's own Mark Buben. So it's fun for me to think that a Jumbo will be coaching the Pats. I think one of Kraft's kids (maybe Dan) is also a Jumbo.
I tagged
@PatsWickedPissah because, like me, he has shared that he is an alumnus of the College of Engineering. Tufts has generally sucked at football, but for a while was great in sailing. It was pretty good for learning also.