Hi, Sorry I can't help with the Obituary.
Many Obituaries - do not mention full names of other family members , siblings etc.
Funeral Home in charge of arrangements - may hold some information -persons to be notified re the death.
Do you have information re parents /siblings of David WHITSON - there might be mention of names and locations of children at the time
You might be Interested.
The Original Registration of Death - have now been filmed
and can be viewed athttp://search-collections.royalbcmuseum.bc.ca/Genealogy/Adva...
Registration for Deaths of David WHITSON, Agnes Bonar WHITSON
note: Agnes BONAR nee CHRISTIE -WHITSON