I see Karen gave you a large amount of info but also see you are asking for death for Bessie.
This looks right.
"British Columbia Death Registrations, 1872-1986," Elizabeth Morgan (1975)
death date: 23 Sep 1975 death place: Vancouver, British Columbia, Canada name: Elizabeth Morgan gender: Female age: 79y birth date: 21 Feb 1896 birthplace: , Scotland marital status: Widow spouse: Frank William Morgan father: Alec Bird mother: indian agency: indian band/tribe: film number: 2050527 digital folder number: 4479353 image number: 1907 british columbia archives film number: B13345 registration number: 75 09 014429
*** THERE is no image at familysearch.org but there is the film # so if you were to go into any Mormon family search library and ask them to order that film for you, you would be able to see the actual entry with cause of death etc.
Here is death of her husband
"British Columbia Death Registrations, 1872-1986," Frank William Morgan (1951)
death date: 11 Apr 1951 death place: Vancouver, British Columbia, Canada name: Frank William Morgan gender: Male age: 59y 5m 6d birth date: 05 Nov 1891 birthplace: , England marital status: Married spouse: Elizabeth Bird father: George Morgan mother: Annie Gainey indian agency: indian band/tribe: film number: 2032700 digital folder number: 4437581 image number: 322 british columbia archives film number: B13208 registration number: 51-09-004308
There is also a death for a Marjorie Alberta Morgan which I will give you - mother is shown as Elizabeth Birth, but just in case it should be Bird I though you might want it.
"British Columbia Death Registrations, 1872-1986," Frank William Morgan in entry for Marjorie Alberta Morgan (1942)
death date: 05 Jul 1942 death place: Vancouver, British Columbia, Canada name: Marjorie Alberta Morgan gender: Female age: 17y 8m 15d birth date: 20 Oct 1924 birthplace: Vancouver, British Columbia marital status: Single spouse: father: Frank William Morgan mother: Elizabeth Birth indian agency: indian band/tribe: film number: 1953635 digital folder number: 4437622 image number: 2202 british columbia archives film number: B13175 registration number: 4683
THE birth records for B.C. at familysearch.org only go to 1903 so too early for children of Elizabeth/Bessie
I looked for a marriage for Frank and Elizabeth as marriage records for B.C. go to 1932 but did not find them, perhaps they married in Sask.
I could not find anything on Donald, Catherine or James Bird.