You are correct. Bank of Italy pre-dates the 1906 SF Earthquake. He bought a controlling stake in a failing LA bank called “Bank of America” in the 1930s and changed the name of the enterprise soon thereafter.
A.P. Gianini (founder) was one of the visionaries behind the branch and inter-state banking model that we now take for granted. Largely grown through acquisitions, the corporate headquarters shifted to Charlotte NC in 1999 when they “merged” with NationsBank.
I thought BofA did have a presence in Wisconsin from it’s acquisition of LaSalle Bank about 5 years ago, though I could be wrong.
There is no branch in Wisconsin where you can make a deposit. BOA does have a presence through Wells Fargo, which they also acquired; but Wells Fargo cannot accept deposits for BOA. I’ve checked.