Brad Mackay interviews Lynn Johnston for CBC Arts and gets some choice biographical info as well as comics criticism:

We lived with the comics growing up — we loved them. My grandfather and my father would analyze them, and my father was quite a good cartoonist but never pursued it. So all my life I remember looking at the comics not as an entertainment, but rather as a piece of art. I loved comic books too, [especially] any one where the female character was believable or strong. I liked Little Dot, Little Lulu, and of course I liked Peanuts, because even though Lucy was kind of a crab, she was strong.