I have CANTLAY connections in Scotland. My grandmother was Margaret CANTLAY (1882-1946). Her parents were David CANTLAY (1846-1916) and Ann FLORENCE (1846-1929). David was born in Foveran, Aberdeenshire. I think his parents may have been William CANTLAY and Margaret LESLIE.
My grandmother had 8 brothers and sisters. As far as I'm aware (family story) at least 2 of her brothers moved to North america. I was told Canada but I'm not definite. They were called David (~1886-1940) and Robert (~1888-1938).
This is all the information I have on them I'm afraid.