All that can presently (July 2023) be gleaned about The Cambridge Sisters, Hazel, Ruby & Jeanette, from sheet music covers and by Internet searching is that they were apparently Chicago based American radio artists who have been featured on 3 works published in 1924.
Their portrait on the left is taken from How Do You Do (1924) music by Phil Fleming, co-authors Harry Geise & Vernon Rick, and published by Ted Browne Music Co., Chicago, Illinois, USA.

Surfers are welcome to contribute any further information about these performers.