Welcome to Rootschat.
Somewhat perversely there are no Huntingdons from Huntingdonshire in any census or in the BMD indexes up to 1910.
The only Vincent to show up was in Sheffield , Yorkshire, but you really need more information about him. Did he marry in Canada? If so do you have his marriage certificate? (If it's similar to English ones then it will show his father's name)
A George Vincent Huntingdon was born in Sheffield in the March quarter 1898, and a William Vincent Huntingdon was married in Sheffield in the September quarter 1896 to Clara Emmitt. This family appear in the 1901 census in Sheffield as Huntington as follows
RG13/4332 folio 77
70 Bolsover Rd, Sheffield
William Vincent Huntington head married 28 Mechanic and Engineers turner born Darnall, Yorkshire
Clara Huntington wife 29 born Sheffield
George Vincent Huntington son 3 born Petsmoor Yorks
Ellen Huntington mother widow 57 Living on own means born Sheffield
Whether or not this might your grandfather's family I cannot say as there is simply insufficient information.
Regards
David