I always loved the sound of the Avonlea, although it took me a while to figure out the right way to pronounce it. :) I had never thought of it as a person name, but it's very pretty and I don't see why you couldn't use it.
I can think of jillions and jillions of L.M.
Montgomery names of all kinds. I could never list them all! Some of the most unusual ones that I can remember off-hand are...
Kilmeny
Valancy
MarigoldUnaIlsePhilippaJonasPerryMarilla
Rilla (nn for Marilla)
Jem (nn for
James)
Hilary (male, nn Jingle)
I might point out that her most well-known character,
Anne, had a passion for names and always wished her name was
Cordelia b/c she thought
Anne was so plain. The character
Anne wrote a story as a young woman and named her main characters Averil,
Perceval Dalrymple, and
Maurice Lennox. When
Anne Shirley grew up and married
Gilbert Blythe, they named their children:
Joyce,
James (nn
Jem),
Walter,
Anne (nn
Nan),
Diana,
Shirley, and Marilla (nn
Rilla).