The funeral service for Frederick Williams, aged 96 years of Osgodby, was held at Lincoln Crematorium.
The Rev Charles Patrick officiated at the service and arrangements were by J Marshall of Market Rasen.
Fred was born in Liverpool and first worked for Evans Pharmaceuticals in the city.
During the war, he was part of the Military Intelligence Corps, spending much of his time in North Africa and Turkey.
In 1946, he became a member of the Government Communications Headquarters in London, later transferring, in 1953, to the new GCHQ in Cheltenham.
He worked there until his retirement in 1976.
Fred was a member of the Bayons Lodge of Freemasons and Middle Rasen Church.
He had been an accomplished organist, keen cyclist and a life-long Everton supporter.
He also supported many charities, especially the RNIB, Lincoln & Lindsey Blind Society and The Macular Society.
Family mourners were: step-family - Mick Banks (also rep Steven, Diane, Katy and Rebecca in Australia), Jan, Sarah, Neal, John, Naomi, Alexander and Dominic; Williams family - Mr and Mrs M Larty, Maurice Williams (also rep Keith and Jean Williams, Audrey and Michael Talbot) - all nephews and nieces; friend and companion Cathy Combs (also rep Myrtle Roots).
Friends at the service were: John Cade; Charles Cade (also rep Sylvia Cade); Mr and Mrs S Cade; Mrs C Cade; Rebecca Farmery; A Farmery; Tom and Cath Bunford; John and Jenny Dalton; Graham and Theresa Roberts (also rep V Bennett); Michael, Jan and Bruce Thompson; Helga Pennelegion; John Cottingham (also rep D Cottingham); Steve Slaby; David Pattison (also rep Bayons Lodge); Mrs C E Cade; Trevor Reed; Heather Muddiman; Hedley Smith; Loretta Rivett; Mr and Mrs D Whitwell; Barbara Cade (also rep Paul, Kerry and Lilly Cade); Jane Cowling (also rep Lincoln & Lindsey Blind Association); Mr and Mrs J Thompson; Craig and Sarah Farmery.