Old "Colonials" team photo need help
 

My buddy showed me a photo today that he didnt know anything about. I have a photo of it but havent loaded it yet. It's a photo of a team from about 1930 or so, they are in front of what looks like a bus. Their hats have an "S" on it and the name "Colonials" across their chests. The team is on the side of a road standing in front of the bus, no field or anything in sight. Anyone heard of this team? I first thought of a travelling barnstorming team but did not recongnize anyone. I will post the photo as soon as I can.

He does have a few official letters and stuff from a former semi-pro umpire that may have went pro according to a recommendation from the league, his name was Bill Doran. So possibly the photo is of a minor league or semi-pro team. Any info would be great, thanks!