c.1844 Born in Richards Castle, Hereford
1851 Richard Mason 34, farmer, lived in Richards Castle, with Susan Mason 33, Richard Mason 8, Benjamin Mason 6[1]
1861 (presumably apprentice to his uncle John Mason, ironmonger and iron and brass founders, employing 41 men, some apprentices and 3 boys) with whom he was living in Guildford and his wife Anna Maria Mason 46, and John's 3 nieces Sarah Weyman 14, Anne Weyman 12, Martha Weyman 11, 3 assistants and 2 servants[2]
1871 Ironmonger, smith and iron and brass founders, employing 71 men and 7 boys, living in Guildford with his brother Benjamin Mason 27, and 4 assistants and a servant[3]
1881 Ironmonger and founder and engineer, employing 71 men and 8 boys, lived in Stoke, Guildford, with Mary K. Mason 34[4]
1891 Ironmonger, employer, living in Guildford with his wife Mary[5]
1906 Died in Guildford[6]