All that can presently (December 2022) be gleaned about
Julia Wilson 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 1882 and 1884.
Her portrait on the left is taken from
Hide and Seek (1882) music by
Charles Dupee Blake, words by Earl Marble and published by
White-Smith Music Publishing Co., Boston, Massachusetts, USA.
Surfers are welcome to contribute any further information about this performer.