Be nice to have some fiddle notes for it, speaking for myself. I am always on the lookout for gospel fiddle music. Lots of it in piano form ( church hymnals ) but I never got the hang of reading piano music.
Piano notes, or better said, the piano notes in the melody line( or top line) would be the same for violin. As long at the music is written as a hymn for congregational singing, the notes in the soprano, or melody, would be just fine for violin. A good key to play in would be G, with one sharp#. I have seen it on the internet in the key of F, which is one flat “b”.