Hi Pamela, You need to determine which name is the correct Last Name At Birth (LNAB). That is the one you use on the profile as LNAB. If the person later changed the spelling of the name, use the one the person died with as the Current Last Name. Put other names that were used for the person in Other Last Names. It is helpful if you mention/discuss the name variants in the Biography so others will know why you chose the LNAB.