Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 146,747 pages of information and 232,260 images on early companies, their products and the people who designed and built them.
of 63 and 56 Compton St, Goswell Road, London
of Belvedere Road, Westminster Bridge, London
of Engineering Works, Peterborough
1881 Opened larger works at 15-17 Belvedere Road, Westminster Bridge.
1903 Formation of Brotherhood-Crocker Motors
1907 Private company.
By 1911 had moved to Peterborough
1914 Manufacturers of High Speed Engines, Steam Turbines, Air Compressors, Fans and Fan Engines. Employees 850. 
Post WWI Made the 30-hp Peterbro tractor. Small numbers made for ten years.
1920 Produced a tractor for direct ploughing. 
1920 Became part of Agricultural and General Engineers.
1937 Compressor, engine and turbine manufacturers. 
1937 Company made public. Directors listed are: 
1943 Large sleeve valve diesel engine. Exhibit at Anson Engine Museum.
1944 Advert for Brotherhood-Ricardo diesel engines 40-500 bhp with 2-8 cylinders. 
1945 Advert for steam engines and turbines. Brotherhood-Ricardo high-speed sleeve valve oil engines. 
1960 Advert. Compressor and power plant specialists. 
1961 Manufacturers of high pressure compressors for air and gases, compressors for torpedo service, torpedo tubes, steam turbines, turbo-generators, refrigerating plant, water cooling towers and specialised plant to customers' own designs. 
Peter Brotherhood Ltd continue to produce steam turbines and gas compressors in Peterborough.
In 1965 Peter Brotherhood Ltd published an 84-page account of the history of the firms established by Rowland and Peter Brotherhood, written by Sydney A. Leleux.