All that can presently (December 2022) be gleaned about Gertie Gilson
from sheet music covers and by Internet searching is that she was presumably an American actress/singer who has been featured on 3 works published between 1895 and 1901.
Her portrait on the left is taken from the sheet music cover of She's the Daughter of Officer Porter
(1896) music by George Maywood
, words by M.E. Rourke and published by Whaley - Royce & Co.
, Toronto, Ontario, Canada. The cover describes her as "The Inimitable Comedienne",
Surfers are welcome to contribute any further information about this performer.