Looking for the Family of John Margaret Preston Robinson Immigrati

Do you know where they lived? There is a John & Margaret Robinson in Westmeath, Renfrew Co.,Ontario Canada. I have that John was born 1842-43 Ireland.
Their children(dont know if I have them all) are 1. Jane
2. James
3. Martha
4. Robert
5. Isabella
6. Agnes
7. Ellen
you can find them in Westmeath Weslayan Methodist Church records. They were bpt. by Rev. R.M. Hammond.
I am hoping they are a connection to my line of Acheson/Robinsons. If you find furthur connection on this line please contact me.

I do not think this John and Margaret are mine. I never heard at all that any of my relatives lived in Canada. However, this John could have been a brother to my gr grandfather, William. William was born in 1838 in England - at least that is what his death certificate says. Sorry it has taken me sooo long to answer this. Good luck