looking again in my files, I believe that I found the infomation requested.
Indeed, I have Elie Ducharme married to Alma Lassonde on Sep. 19, 1919, in St-Martin-de-Tour, Somersworth, NH. I have 4 children for them: Berthe-Lorette, Noêl-Armand, Rita-Florence and Wilfrid-Elie (all married in NH), but likely thay had more. In my opinion, Anna was one of these children, however I have no proof of that.
It's easy to note that Alma Lassonde is quite close to Alona Laconde.
These persons are from the Provencher dit Ducharme family, one of the main Ducharme family. It's not my own family, so I can not get any further.