Frederick Adolph Trenne Mossman was from an established legal family in Bradford and the West Riding and followed in the family tradition becoming a solicitor practising in Bradford. He was a pillar of the community, and was a founder of the Diocese of Bradford and its first Diocesan Registrar.
He was initiated into Pentalpha Lodge No 974 in Bradford. In 1927 he helped organise a United Lodge of the 15 Bradford and Shipley area lodges to welcome Viscount Lascelles, Provincial Grand Master of West Yorkshire, on his progress through the Province.
He was an early member of the Bronte Society and remained a stalwart member for some 60 years. He served as its Treasurer during the Great War, was afterwards the Chairman, and remained on the Council until the 1930s. He had family connections to both McTurk and Redhead for those familiar with the details of the Bronte story, as well as the ‘Miss Mossman of Bradford’.