Probably the maker's initial
Depending on maker, it should have a number 1 raised letter on the cap
A barrel maker is a person that has a skill for making wooden barrels. Another name for a barrel maker is a cooper.
Mister Maker's real name is Phil Gallagher.
Miles Maker's birth name is Micah James Ray.
Usually, a shoe maker...(Not kidding)
The traditional name for any footwear maker is cobbler or cordwainer. See the link.
God. That is the maker of the walking stick
It was called a coffee maker because it makes coffee.
A beanie or toque/tuque (Canada) is a name for a woolen cap.
Cap Somers's birth name is Fredrick Grant Somers.
Cap Boso's birth name is Casper N. Boso.