The subseries contains manuscripts of spiritual children's music, for voice with piano accompaniment. Manookin collaborated with several lyricists, and also wrote some text himself. Dates range from approximately 1972-1978.

The series contains manuscripts of spiritual Christmas music, including original works as well as arrangements. The pieces are mostly vocal, particularly choir, with piano accompaniment. Other manuscripts include organ accompaniment as well as other instruments. Present is also a script for a Christmas program, as a presentation that could be performed along with the songs. Dates range from approximately 1974-1995.

The series contains instumental manuscripts, written or arranged by Robert P. Manookin. Comprised of pieces both spiritual and secular in style. Some pieces are written for piano and violin, flute, or other wind and string instruments. A few of his manuscriptes have been copywrited. Dates range approximately 1973-1989.

The series contains manuscripts arranged or written by Robert P. Manookin for men's chorus. The pieces are all spiritual in nature. Some arrangements of Latter-day Saint hymns are included. Dates range approximately 1972-1984.

The subseries contains manuscripts and scores written or arranged by Robert P. Manookin, both spiritual and secular songs. Also included are accompaniments for the piano and organ, as well as the harp and other string instruments. Occasionally present are manuscripts for brass and wind instruments. Dates range approximately 1951-1996.