At University of Manchester, UK: 60,000 hymns collected for editing "Hymns for the Church Universal," 1885.
http://rylibweb.man.ac.uk/data2/spcoll/jr/hymn.html
Bibliography of library holdings; relevant card catalog numbers; a few links (University of Tennessee-Knoxville)
http://toltec.lib.utk.edu/~music/guides/sacred.html