Who the garageman is, apparently as you say, that it came from a garageman somewhere.
We got acquainted with the garageman's family, for one thing.
Its acceptance by the garageman imposes on him the duty of exercising due care for its safety and protection.
He was wondering whether, after the summer's maturity of being a garageman, Ted would "get busy" in the university.
I got a heavy canvas lining, and the garageman patched and vulcanized and sold me a variety of appliances.