Our tenants were trained to pay at an office when we took over a park. They transitioned well to just delivering payment to the bank. That way, I can accept cash. Lol.
We gave out 12 months worth of duplicate deposit slips with the lot # hand written at the top. We only had 29 lots so it wasn't bad.
Now we give out a deposit card which resembles a business card with lot # and account number. There are plenty of online sites you can get that stationary made up.
The bank does ask for an updated tenant list from time to time and ours required some personal info on tenants for their files like DOB, DL #, and or social security number.