Great songs with a woman's name in the title? Here are a few I like:

Barelegged Kate, written by John Dengate about his mother, recorded by Penny Davies and Roger Ilott.

Isabella Gunn
(sorry, couldn't find a free site), written and recorded by Eileen McGann.

Peggy Gordon
trad, recorded by many, here by Eileen McGann.

Alma
written and recorded by Tom Lehrer.

Kiri's Piano
written and recorded by James Keelaghan.