The song is called MICKEY'S SON AND DAUGHTER (E. Lisbona [some sources say "Lisbana"] & T. Connor). It's on the following albums:

Bonzo Dog Doo Dah Band, "Gorilla", 1968; reissued 2007.

(and numerous "best of" compilations)

Various artists, "This Label Is Not Removable: A Celebration of 25 Years of Free Reed", 2002. (MICKEY'S SON AND DAUGHTER is performed by Flowers & Frolics.)

Various artists, "Songs the Bonzo Dog Band Taught Us: A Pre-History of the Bonzo", 2007. (MICKEY'S SON AND DAUGHTER is performed by The BBC Dance Orchestra.)

At YouTube, you can see videos of MICKEY'S SON AND DAUGHTER performed by:

Jack Jackson & His Orchestra, 1935.

Bonzo Dog Doo Dah Band