I am searching for my family in Canada. So far I have it traced back to Thomas William Handrahan born abt 1850 in Halifax, Nova Scotia. His father was John Han(d)rahan and his mother was Margaret Hannigan or Hamdressy. Do any of these ring a bell? I am stuck. I do know that Thomas and his family immigrated to the Boston area but I am not sure if that is when the D in the last name was added. Thanks for any help you can give.