This is a great site for digitized hymnals. I've only been studying some of the Catholic hymnals published in the USA around the turn of the twentieth century. It's interesting to see what was in congregational hymnals 100 years ago.

I found A. Edmonds Tozer's 1905 Catholic Church Hymnal interesting in the fact that he composed 66 of the 238 hymn tunes, and not a single one seems to have survived the past 100 years. Rather humbling.

This URL will lead you to 11 Catholic hymnals. But there is so much more.

http://commons.ptsem.edu/?keywords=Catholic,+hymnal&x=14&y=12&submit=true&scope=title