The memorial was sculpted by Alfred Gatley in stone and marble, and contains a bust of Whitaker in a medallion on the south face.
[1] The school was financed by public subscription and by the children paying a small weekly fee.
[3] There was a previous memorial to Whitaker, which was created by Samuel Franceys and Son of Liverpool and was placed in the Sunday School in 1821.
[6] In the Public Sculpture of Britain series, Morris and Roberts comment that it "has the design of a typical classicist church monument enlarged for an outside location".
[2] The Sunday School (now the Heritage Centre) established by Whitaker is designated as a Grade II* listed building.