This is not my Fitzmaurice line but I have come across references to John Charles Fitzmaurice and your Fitzmaurice line before. My FitzMaurice line was also in New Brunswick during this time (Rollingdam, Tower hill, St. Stephen). I did some research on your line to show that they were not connected to my line (except for possibly farther back in Ireland). If I remember correctly, your line was from Nova Scotia from about 1805. I think there was also an Alma Fitzmaurice that lived in St Stephen when John Charles was in St. John. I think that I was once in contact with someone from Massachusetts about your line a few years ago. I will try to dig into some of my old files and see what I can find for you.