Do any photographs of Malvina or her family exist? Are they online anywhere? I have some pics of her boy David, who was my ggfather, on my Webshots page. [go to Webshots.com, search on username 'laurierankinnoel' and when you get to the page, the pics are in the section "Rankin Archives." Sounds confusing, but it's easy.]
Note that my ggf David is the one who came down through sloppy censustaking as David Jr.In fact his name was David Patterson Rankin.