The problem for me is, that after battle the screen tells me that I lost a guy named Adelbert. But I would like to know how long he was with my mercenary band, what equipment he had, how I skilled him and so on. I can only look at the armor the corpse has and if it was quite the bad armor it had to be a new guy. I am at day sixty-something now and I only know my founding members by name.
I always name my brothers after family/friends and things. It gives me a more personal feel for my brothers, and helps me differentiate between them and remember which skills i was going for.