There are a few hymns that I remember being sung at mass when I was young (8 to 12 years old) that I never heard or can find in many hymnals anymore. They are:
Faith of our Fathers
My Soul Is Longing for Your Peace
Keep In Mind
these were normally sung at masses when we had the organist and choir sing which was usually the Saturday evening mass, Sunday more we had a folk group, I remember singing Arise, Come Sing In The Morning and Jesus is Life.