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man‎Francis C "Francis E; Frank" Darcy‏‎, son of John J Darcy and Sarah B "Sarah Ann; Johanna" Rooney‏.
Born ‎1880 Miles City, Custer County, Montana, died ‎between 1914 and 1918 Montana‎, age 37 or 38 years
He's in the 1910 census of Fergus, Montana, single farmer, both parents born in Canada, under the name Francis E "Darch," but if you read the census handwriting, it's Darcy. It doesn't give an age for him.

Married ‎1 May 1911 Lewiston, Fergus County, Montana, age 30 or 31 years (married 6 or 7 years) to:

woman‎Bertha Nettie Liston‏‎, age by marriage 23 years
Born ‎16 Sep 1887 Williamsburg, Franklin County, Kansas Event Description: or Topeka, died ‎18 Feb 1945 Seattle, King County, Washington‎, age 57 years, ‎1st marriage to: Francis C "Francis E; Frank" Darcy, ‎2nd marriage to: N.N.

Children:

1.
woman‎Living‏‎ PRIVACY FILTER

2.
man‎Joseph Anthony Darcy‏‎
Born ‎25 Apr 1912 Hobson, Judith Basin County, Montana, died ‎14 Dec 1986 Canby, Clackamas County, Oregon‎, age 74 years
In the 1930 census, when he is 18, Joseph is living with his Aunt Eva and her husband Michael Walsh and family in Dubuque, Iowa.

3.
woman‎Living‏‎ PRIVACY FILTER