As everyone already knows it takes 5 players to make a guild and when you create a guild you become the guild master but the other 4 players don't become anything until you can assign jr masters.
I think that the other 4 players that help start the guild should automatically get a one time title of co-founder (meaning the title cant be given) so people can see who the original members are then jr master can be added to people that join the guild afterwards