Hello again.
I have just looked through some of my findings. and found the following: "John Duff married Mary Anne Boyne 15 June 1869 and had daughters Maude Amy/Mary (1869-1874) Maria/Mary (1871) Edith Annie (1872) and Elizabeth (1873). Mary Anne died in July 1873. She was 23 years old and her death was possibly related to Elizabeth’s birth."
Subsequently, John Duff, then aged 80, married 22/23 year old Ann Jane Christian Wilson in 1926, a son, Robert Willian Howard was born a month later! John Duff died in 1928. Ann Jane Christian later that year married Thomas Philip Collister, my friend was the first child born to them, therefore, not connected to Mary Ann Boyne.
But still a fascinating tale of times past. Gillian