In working on organizing some family materials, I noticed that I was constantly mixing up various family members and needed a list to keep them straight.
But for me the best list was not one sorted by last name. Instead I made a list where they were sorted by first name. That was because partially some items I had in my possession only had their first name listed and partially because I found myself having an easier time remembering their first name.
The list was for my personal use only and included the first name, middle names or nicknames, last name (maiden and married [if they had one] for women–in that order), names of parents, and years of birth and death. The sorting by first name reminded me of how many Ruths, Freds, etc. there were and how they fit into the family.