Yes, but they did talk like that because it was Victorian Canada and people talked like that then. I imagine they would think if they talked like us 21st century people they'd get laughed at too.
I'm glad you made this spot too. LM Montgomery had a very sad life. She suffered from severe depression most of her life and didn't have a happy home life either. I find it inspiring she could have a life like that and come up with such heartwarming characters that seem really alive.
Because the titles reflect the different stages Anne goes through throughout her life, e.g: when she goes to college (Anne of the Island), takes her first school in Windy Willows, get married (Anne's House of Dreams) and finally when her children are embroiled in the horrors of WW1 (Rilla of Ingelside).