Cllr. Singleton was also a member of Lincolnshire County Council for a decade, and subsequently was elected to be Conservative Deputy Group Leader.
Cllr. Martin Hill OBE, Conservative (Folkingham Rural Division), Leader of Lincolnshire County Council, said:
"Barry had been bravely fighting illness for some time, but that did not prevent him continuing his sterling work as a councillor and deputy leader.Tribute were paid to Cllr. Singleton by those who worked closely with him.
"The county council was a better place for the presence of Barry and his loss will be keenly felt. Our thoughts and prayers go out to his wife, Shirley, and his family at this sad time."