The company became Reyrolle Parsons in 1968, merged with Clarke Chapman to form Northern Engineering Industries in 1977, and became part of Rolls-Royce in 1989.

[3] During the First World War, the Parsons’ Works on Shields Road employed a large number of women on the factory floor.

[4] Following her brother's death during the war, Rachel Parsons did not resume her role as a director of the Heaton Works.

[7] Nuclear power stations using Parsons steam turbines include Bradwell, Calder Hall, Dungeness, Heysham 2 and Oldbury in England[8] and Chapelcross and Hunterston in Scotland.

[11] In 1977 Reyrolle Parsons merged with Clarke Chapman to form Northern Engineering Industries, which itself was acquired by Rolls-Royce in 1989.