Yes, I have a account at BofA and they scratch their heads when I tell them I have been customer for over 40 years...Same building, just many mergers from the original State Bank.
Not to be technical. s/
Well your right about all of the mergers. Many smaller banks have been eaten up by bigger ones over the years, it is indeed hard to trace them all. My father banked at Security Pacific Bank. They are no more, who knows who bought it out. The only other major bank still around from then is Wells Fargo.