These two ladies are members of the Byesville Ladies’ Band. Byesville is a village in Ohio that supported several bands in the first half of the 20th century, from at least 1900 onwards. Sadly there is little available information about them, other than the occasional photograph and brief mention in local newspapers. Just one of the thousands of such communities across the world, that raised bands from their townspeople which are, as yet, undocumented, but for which there is the odd tantalising glimpse of their histories.
See: https://www.academia.edu/72248717/Byesville_bands_glimpses_of_musicians_from_a_small_Ohio_village
IBEW - the History of Brass Bands 