Just added this one to the 19th century timeline (2nd half):

1900—An image by Cederström (probably Ture Nikolaus Cederström, 1843-1924) entitled Concert in the Monastery is reproduced in Elson’s 2nd volume of Famous Composers and their Works. Among the octet of monk-musicians is a trombonist (see below image; click to expand; public domain) (Elson, Famous Composers vol. 2, 15).