From Levy:

Title: Mother on the Brain (Comic Ballad). [Cites numerous popular songs about Mothers].
Composer, Lyricist, Arranger: Composed By M.F.H. Smith.
Publication: Brooklyn: D.S. Holmes, 67 Fourth Street, 1865.
Form of Composition: strophic with chorus
Instrumentation: piano and voice
First Line: As you look at the songs that you see nowadays, The gentle word of Mother will surely meet your gaze
First Line of Chorus: Oh, Mother, Mother, the truth is very plain
Performer: As Sung By All The Minstrel Bands.
Dedicatee: Dedicated to all writers of Mother Songs.

Title: Song Sheet Mother on the Brain.
Composer, Lyricist, Arranger: Air The Bonnie Blue Flag. By John C. Cross.
Publication: New York: H. De Marsan, Publisher, 54 Chatham St., 1864.
Form of Composition: strophic
Instrumentation: na
First Line: As you look on the songs that you see now-a-days, the gentle words of Mother will sure meet your gaze

From American Memory:

Mother on the brain. Air: The bonnie blue flag. By John C. Cross. H. De Marsan, Publisher, 54 Chatham Street, N. Y. [n. d.]