All that can presently (May 2022) be gleaned about Marie Roslyn
from sheet music covers and by Internet searching is that she was presumably an American actress/singer who has been featured on just 2 works published between 1906 and 1909.
Her portrait on the left is taken from Pretty Little Maid of Cherokee
(1909) words & music by Will Rossiter
, and published by Will Rossiter
, Chicago, Illinois, USA.
Surfers are welcome to contribute any further information about this performer.