When I taught high school in the '00s, they used first+last name as a primary identifier for students. For duplicates, they added an asterisk on the end, repeat

When I taught high school in the '00s, they used first+last name as a primary identifier for students. For duplicates, they added an asterisk on the end, repeating as necessary. I had one student on my roster who was Jose Ramirez**** (not his actual name or number of asterisks, both of which I've long since forgotten).