In April this year Pam asked the same question in the Manx Independent Newspaper and I answered to Tracy Maddrell at the paper as requested.
I see some of the answer in this thread.
In 1891 the children were boarding at Church Road Onchan:-
Jannetta J Kay Widow
Bertha Kay Daugh.
Gertrude Canning 10
Douglas Canning 7
Carlisle Canning 3
After the death of Jane, Moses married Mary Ann Emery Andrew 1891 in Barrow.
His father , Thomas, Married Jane Ennett 1844 in Douglas but he was from Lezayre and used the name Cannon then.
Gertrude moved to Warrington and boarded in Padgate Lane where there is still a Post Office.
It looks like she married Charles J Jones 1906 and moved to Liverpool.
The iomfhs.com BMD shows other members of the family.