All that can presently (March 2021) be gleaned about Margaret Ashton
from sheet music covers and by internet searching is that she has been featured on 2 works published in 1905.
Of interest is My Little Redbreast
(1905) music: Alf J. Lawrance
words: Harry Gifford and published by Reeder & Walsh
, ..The young lady pictured on the sheetmusic therof is presumably Miss Margaret Ashton and is the work of Siney Kent.
Surfers are welcome to contribute information about this performer.