I heard that "three dog night" originated from those in the upper northern regions needing warmth to survive the nights...…... found that not two, but three dogs were necessary to keep one person warm at night.
The band Boston was named after a city in Massachusetts and the band Chicago was named after a city in Illinois, according to an American that I know however Buffalo Springfield was not named for Buffalo or Springfield I am told.
The Band supposedly came from the fact that everyone around Woodstock referred to them as that (they were known to be living in the Big Pink house in West Saugerties, and working with Dylan). While they were still Ronnie Hawkins’ backup band they were known as The Hawks, for the obvious reason (they liked to catch and eat rabbits, squirrels, and mice ;-) . During the early-1968 recording of their debut album, they were kicking around new names, one of them being The Crackers, a reference of course to southern rednecks. Capitol Records was not amused.
Steely Dan: Named after a dildo in the book "Naked Lunch".
From Wikipedia: "Jethro Tull invented some machinery for the purpose of carrying out his system of drill husbandry, about 1733. His first invention was a drill-plough to sow wheat and turnip seed in drills, three rows at a time."
Stevie Nicks and Lindsey Buckingham’s San Jose, California (The Doobies' hometown) garage band were originally named The Fritz Reiner Memorial Band, after the famed conductor. His estate sued, and the name was abbreviated to just Fritz. I saw them live only once, at the 1968 Santa Clara Folk Rock Festival. They were the only local band (iirc) on the bill, opening for The Electric Flag (Fantastic! Mike Bloomfield, Buddy Miles, and four saxes!) and the doors (not so hot. Kinda "lightweight". Girls’ music ;-) .