Well, I hope I am not spending time duplicating information you already know, but here goes: I presume you find George Perley and Ella in 1901 with kids Hilda and George. Then it is a short leap of faith to connect Robert Slater in same area (Hillsborough, Albert, NB) and his wife Susan, as probable parents of George (also 1901). This is strengthened by the fact that there are Steeves living with the elder Slaters.
1881 census should provide additional info, but I will wait on that.
PS I just checked the 1881 and the above may be a bad conjecture... sorry.
PPS and now I've just checked your original question, and I see you are asking a completely different question from what I responded to... I can't win today.
Nick