On page 1 of your grandmother's manifest there is an "X" next to her name. I believe that means she was detained. Women traveling alone or with children were detained until a husband, brother or other family member could be contacted. At the end of the manifest there should be a separate listing of detainees. My grandmother was also detained for this same reason until her husband came to collect her. In her case, the detainee list was typed. If the list was typed in your grandmother's case that might give you answers to some of your questions.
