Found this great historical archive of photos of the bank where my paternal great-granduncle, William Clifford LeMASTER, was cashier back in the early 1910s. This is an online reproduction of the original 1908 brochure. It is a great view of what the bank looked like at the time.
There is even a photograph that may show W.C. LeMASTER at work. It is the photograph of the "Cashier's Room."
I found it interesting that the bank featured a "Ladies' Waiting Room", complete with amenities to appeal to female customers.
Here is the bank's listing in the United States Congressional serial set of 1907 listing the bank and W.C. LeMaster as cashier on Google books: