I need a list of every known affair/relationship that Lucy Maud Montgomery had...?

Bookrags http://www.bookrags.com/biography/lucy-maud-montgo... has the information on Lucy Maud Montgomery which can be found in the Encyclopedia of World Biography.

You might also want to read her autobiography called The Alpine Path: The Story of My Career. I read that long ago, so I don't recall if she lists everybody with whom she had a relationship. You can also read it online http://www.online-literature.com/lucy_montgomery/2...

I know she married Ewan MacDonald, and she wouldn't have had any affairs (certainly there is no hint of one). She had sons Chester and Stuart, too.

I hope this helps.

***Edit: These are more official sites for Lucy Maud Montgomery and may provide more information:

http://www.gov.pe.ca/lmm/ (Prince Edward Island)

http://www.lmmontgomery.ca/ (LM Montgomery Institute)

http://www.lucymaudmontgomery.ca/ (Lucy Maud Montgomery Society of Ontario)

Here's a link to my favorite lmm resource page, I think you can find some biographical info there:

http://www.tickledorange.com/LMM/

If you go to the free etexts page there you can find a link to her autobiography.

Also try books about her in libraries. Of course, how much you'll find depends where you are in this world. Here in Canada it's easy to find lots on lmm. I recently read that she had told someone that she once loved a man who she considered her inferior.

Hope this helps.

Try typing her name into Wikipedia and then looking into her presonal life!