Sir Richard Grenville & Sir Thomas Moore

Sir Richard Grenville 
Built: 1983
Operators:
Woods River Cruises (1983-Present) (renamed Silver Bonito 1993)
 Extended in length in 1996 at Lowerstoft

SIR THOMAS MOORE
Built 1982
Operators:
Thames Guided Tours (1982-1988)
Thames Television at Teddington (1988-1999)
Thames Leisure (1999-Present) (extended/renamed around 1999)