Photo shows identified soldiers in Union uniforms. Public domain photograph of a military, American Civil War, 19th century, free to use, no copyright restrictions image - Picryl description
This is a public-domain musical notation scan. There were many music publishers in the United States during the 1900s. Some of the most well-known ones include G. Schirmer, Inc., Boosey & Hawkes, and Hal Leonar More