1930s Autograph Book - Creator Found?

I came across the first article the other day, someone using the CBC and web to locate, if possible, the creator of an autograph book, which also contained messages, poems and drawings, between 1929 and 1936 from "Hilda":

http://www.cbc.ca/news/canada/saskatchewan/autograph-book-antique-1.4366028

It appears that a possible author has now been found. It is thought that the young girl's family (if her, she is now deceased) recognizes the handwriting:

http://www.cbc.ca/news/canada/saskatchewan/mystery-who-is-hilda-solved-1.4370807

⇧ Very cool. Has a very pre-internet, internet / social media feel to it.