Edward James Duff (1863-1950) of Duff Brothers and Co
Born in Lofthouse, Yorkshire
Designer of gas producers
1901 Edward J Duff 37, mechanical engineer, Isabella T Duff 39, Margaret Duff 6 Rosalind Duff 5, Muriel Duff 2 months[1]
1911 Edward James Duff 47, civil and mechanical consulting engineer, lived in Garston with Isabella Taylor Duff 49, Margaret Duff 16, Rosalind Duff 15, Muriel Duff 10[2]