The Drouins Collection does show baptisms of John Gerald Joseph Hayden born 19 August 1924 - baptised 7 September 1924 to parents Michael Hayden and Marjorie Ann Kennedy.
and a separate entry for Kenneth Walsh Hayden born 5 March 1928 - baptised 28 March 1928
If you are referring to the obituary of Michael Hayden which says father of John Kenneth, then perhaps there should have been a comma between the two names.

Find A Grave give a burial for the second wife Ridgeway Memorial Cemetery
Ridgeway, Niagara Regional Municipality, Ontario.
The obituary for Kenneth Hayden also mentions Ridgeway Ontario.
Sandra