Mary O'Brien, 31, born in England, living in Butte, divorced, daughter of Thomas Mulholland and Eliza Montgomery
and
Albert E Duff, 29, a miner, born in England, living in Butte, not previously married, son of William H Duff and Mary Martin
married 17 February 1913 in Silver County, Montana, by John Doran, Justice of the Peace
witnesses: James and Margaret Jago
[note: her death rec says her mother's name was Byrne. I found a Mary Mulholland with a hint that her mother was Eliza (Byrne) Mulholland in the English censuses. So I think Byrne is more likely]
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birth
29 December 1915, Butte MT
Edward Duff
son of Albert Edward Duff, a miner, and Mary Mulholland, both born in England
mother resides at 338 E Woolman
1st child of the mother [a misunderstanding, maybe?]
no doctor
informant: Mrs ? L Brown, Nurse
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Died in Butte, Silver Bow County, MT
at 338 E Woolman
January 15, 1914
Mary Duff, born 1881, England
parents: Thomas Mulholland and Elizabeth Byrne, both born in England
informant: Al E Duff, 338 E Woolman
cause: peritonitis, 8 days
contributory: Puerpural sepsis
buried: Catholic Cemetery
[Puerperal sepsis was defined as infection of the genital tract occurring at any time between the onset of rupture of membranes or labour, and the 42nd day postpartum ]