All that can presently (June 2022) be gleaned about Harriet Bowmer
from sheet music covers and by Internet searching is that she was presumably an English actress/singer who has been featured on just one work namely The Nice Looking Girl
(1865) music by G.W. Hunt
, words by R J Hamerton and published by Hopwood & Crew
She was also the lyricist of:
Surfers are welcome to contribute any further information about this performer.