All that can presently (July 2023) be gleaned about The Drisdall Sisters from sheet music covers and by Internet searching is that they were presumably American actress/singers who have been featured on just one work namely I Can't Stop Loving You Now (1914) music by Ted Snyder, words by Bert Kalmar;Edgar Leslie and published by Waterson, Berlin & Snyder Co., New York, USA
Their portrait on the left is taken from that same work.
Surfers are welcome to contribute any further information about these performers.