From Ontario Catholic Church Records

St Andrew's West, Stormont County Ontario

On the 24 June 1919 William Alcide Beaudette son of Ernest Beaudette deceased and Mary Alvina Waters and Mary Yvonde Decaire, daughter of Joseph Decaire and deceased Alba Legault, in the presence of Westley Rochford and Alice Decaire
There was one publication of banns, the other two having been dispersed with by the Rt Rev William A Macdonald.
William Alcide was born 24 Sep 1897 and baptized at St Andrews 26 Sept 1897.
May Yvonde was born April 16 1899 and baptized at St Clet PQ the same day.
Signed Jno E McRae.

Death
Mrs Mary Yvonde Beaudette
24 March 1922, the remains of Mary Yvonne Beaudette, wife of Alcide Beaudette, deceased 22 March, aged 23 was place in St Andrew's vault in presence of Alcide Beaudette, Joseph Desine, Chas Primeau, and others.
Signed: Chas A Bishop

I don't see death of any children of theirs.

William and Janet Martha Martin married 21 Nov 1927 at Cornwall.

1901 census Cornwall Town
BEAUDETTE
Ernest, 28 May 1872, 29, Quebec, farmer
Mary A, 7 Sept 1876, 24, Ontario
William E, 24 Sept 1898, 3, Ont
David A, 6 Mar 1900, 1, Ont

1911 census Cornwall
BEAUDETTE
Alvina, Sept 1877, 33, Ont, widow
Alcide, Sept 1898, 12 Ont
David, March 1900, 11 Ont
Clara, Dec 1908, 8
Eugene, Feb 1904, 7
Eveline, May 1908, 3
Children all b Ontario