All that can presently (December 2022) be gleaned about May A. Bell-Marks
from sheet music covers and by Internet searching is that she was presumably an American actress/singer who has been featured on 2 works published between 1899 and 1901.
Her portrait on the left is taken from Stay in Your Own Backyard
(1899) music by Lyn Udall
, words by Karl Kennett and published by M. Witmark and Sons
, New York, Chicago, San Francisco, USA.
Surfers are welcome to contribute any further information about this performer.