Is this another case of a song collector putting his/her name on a published song as though s/he wrote it?
It's not just a matter of copyright ownership, because the 1967 copyright holder is given as Fischer Boyce.
And, here Amazon.com cites "Beautiful Star of Bethlehem, revivalist hymn Composed by R. Fisher Boyce, Adger M. Pace with Chanticleer" on the tracklist of a Chanticleer Christmas album.