Trinity Sunday: Gospel Acclamation. Murray and Vulpius Alleluias with verse set to Te Deum chant by Richard Proulx. 1 copy of organ accompaniment of Murray acclamation. 1 copy of organ accompaniment of chant verses by unknown. Copies of manuscripts by Proulx and unknown.

Responsorial Psalm: Trinity Sunday "B." Happy the people the Lord has chosen to be his own. Psalm 33. 1 copy of manuscript by Proulx includes an organ introduction, and orchestrated refrain and psalm tone. 1 copy of manuscript by Proulx includes cantor and choir parts. Hymnal Number: 663 in Worship II.

Responsorial Psalm: Trinity Sunday, Year C. O Lord, our God, how wonderful your name in all the earth! Psalm 8. 2 copies of manuscript by Proulx with copy of published antiphon. Refrain: J. Robert Carroll, Verses: Malcolm Archer.