I can answer for my own practice "in American English.".
- a woman who has married more than once (and used their husband's surnames)
Last name = last name at event death, other surnames besides the original entered in AKA
- a woman who had a name change after birth and then married (and used her husband's surnames)
Same as above, however could use the language modules if the name was in a different language (my grandmother's case)
- where titles should be entered ie Rabbi, Dr, Sir
Display name
- a man who had a name change after birth
Easy! Original name = birth surname; Current name = last name
- names with multiple spelling variations ie SOFFER, SOPHER (where one branch thinks the spelling is one way and another branch thinks it is another way - and no source documents can be found to prove)
The family should choose one, alternate spellings in AKA. Could do one spelling (older?) in birth & another in last name, I've done that, but it's a "guess" so not a good solution.
Whatever they decide, do not stuff alternate spellings into the last name field, they'll never match & family will not find each other.