Which Mints Served Which Federal Reserve Banks?
This is a DEEPLY nerdy topic, even for collectors. As I understand it, the FRB's order coins from the mint as needed and then distribute the coins to local banks. Which mint would of course depend on supply and likely the cost of shipment, perhaps other considerations.
The reason for my interest is that I'm putting together birth and anniversary sets to honor my parents and would prefer to use the most representative mint. Both were born in Rockford, Illinois and were also married there. Rockford is near Chicago, so the Chicago FRB would most likely have distributed coins to Rockford. Denver and Philadelphia would both seem candidates as suppliers to the Chicago FRB. San Francisco isn't out of the question as, for example, Denver did not mint quarters in 1912.
The relevant dates are 1912, 1918, and 1939. If anyone could point me in the right direction, I would be most grateful. NNP?