Maureen died at the age of 86 on December 7, more than four decades after her hero husband was gunned down in the line of duty.
Ch Supt Stuart Nobile, chairman of the Superintendents Association, said: Maureen was a truly incredible lady...
Maureen will be remembered for her years of charity work after the death of Gerry Richardson, who was murdered chasing down a robber in 1971, aged just 38.
The service took place at St Johns Church in Blackpool and was attended by senior police officers including Lancashire Polices Ch Con Andy Rhodes and Ch Insp Chris Hardy, who was a pallbearer.
...who, despite her personal tragedy, committed her life to helping others with an energy and a zest for life which was clear to all who knew her. She will be missed by many.