I did not find an obit for her, but her death record info is at familysearch.org
You did not say what you were hoping to find in the obit to further you family research.
The death shows her husband as George Henry Warning, and her parents as William Logan and Mary Logan.
Lexy is listed as Lexy Adrienne Warning, age 76 - birth Dec. 31, 1881 Ontario.
Let me know if you need more info on her earlier life - on ancestry.com there is the marriage for her and George Warning - they married in Sarnia, Ontario June 6, 1906. Her mother is again shown as Mary Logan - no maiden name shown.
I found her birthalso if you need it. Birth name Adrienne Alexis Logan. There is a notation which says Mothers name was Logan before marriage so looks like Logan is her maiden name. I found there marriage which does show her as maiden name Logan.