 At various times he was president of the Queensland Ambulance Transport Brigade, the Boy Scouts Association, the Chamber of Agriculture, the Law Association, and was chairman of the Board of Technical Education.He retained his seat in the legislative council until it was abolished in 1922.Thynne was married twice, (1) to Mary, daughter of William Cairncross, and (2) to Christina Jane (née MacPherson, the widow of Leslie Corrie), who survived him along with three sons and five daughters of the first marriage.