What does Wm mean?? Woman??

@Mandi Barrett​ If you run into more abbreviations you're not sure about, you could check out this FamilySearch Wiki page: https://www.familysearch.org/wiki/en/Abbreviations_Lists_for_Personal_Names_(English)

I have used the last link on the page a lot. It is about traditional nicknames. It was very interesting to go through the list of nicknames. For example, my given name is Patricia and my nickname is Patty which is also a nickname for Martha.