In 1967, the members of Certes Lodge No. 4606 started talking about the creation of a daughter lodge due to the large number of member in Certes Lodge. This came to fruition on 4th September 1968 with the consecration of Semper Amicus Lodge.

The Consecrating Officer was VW Bro JW Stubbs PJGW Grand Secretary

• W Bro Hon Mr Justice Bagnall MBE
• W Bro Rev G W N Groves OBE
• W Bro Sir John Newson-Smith Bt
• W Bro A W Powley
• W Bro J Hedges

Founders

• W Bro A S Drew PGD (Bucks)
• W Bro R A Turner PPGD (Bucks)
• W Bro C E Wigmore LGR
• W Bro T D Rowe
• W Bro L Stokes
• W Bro E G W Eley
• W Bro E Everest
• W Bro H Everest
• W Bro H A Standon
• Bro R Taylor
• Bro R D W Wiggins
• Bro J Harvey
• Bro J Moore
• Bro E Iles
• Bro W G A Corke

All but three of the Founders of Semper Amicus were Certes members

The current Masters of Semper Amicus and of Certes Lodge have permanent invitations to all meetings of the other lodge due to the great friendship between the two lodges.

The lodges also share a Lodge of Instruction