According to this Topic Discography, Gary & Vera Aspey recorded KNOCKER UPPER MAN on their album "Seeing Double," Topic 12TS407, 1981.

It also lists SONG OF THE KNOCKER-UP, recorded by Mary and Harvey Kershaw on their album "Lancashire Sings Again!" Topic 12TS302.

A duo called Hanky Park (Tony Downes and Pete Martin) performs THE KNOCKER-UPPER MAN (by Mike Canavan) on their album "Rough & Ready." You can hear a sound sample on that web page.