William James Mason
c.1840 Born in Marylebone
1864 Formation of Short and Mason business
1871 Engineer, employing 6 men, living in Paddington with Martha Mason 29, James Mason 9, William Mason 5, Emily S Mason 7[1]
1881 William J. Mason 49, engineer, born and living in Paddington with Martha E. Mason 39, James Mason 19, Emily S. Mason 17, William F. Mason 14[2]
1901 Living on own means, in Paddington, with Martha Mason 59, Emily Mason 35[3]
1901 Dissolution of the Short and Mason partnership
1911 Retired gas engineer, living in Paddington with Martha Elizabeth Mason 69, Emily Sarah Mason 47, his sister Emily Jane Mason 63, and grand daughters Doris Emily Mason 12, Winifred Ada Mason 10[4]