After creating a facebook account, can I add a second last name?

[BRi]

I made a facebook account for my mother so she could find all her friends from high school, but i forgot to add her maiden name. I can't find it, but can I go back in and add it to her name? help, please!

[Jim]

Unless she chooses to have a double barrelled surname, the maiden name does not go with the married name. The married name replaces the maiden name. Perhaps the maiden name should be prominent on the profile or you could do

Jane Doe (using married name) aka Jane Doe (maiden name)