According to the 1880 U.S. census, Patrick Duffey immigrated from Ireland in 1847 (age 17). He was a farmer. He was age 48 in 1880, lived with wife Alice, age 45, with the following children:

Laborn J. Duffey, age 18

Bridget E. Duffey, age 16

Loretta Duffey, age 12

Annie C. Duffey, age 10

Mikel Duffey, age 10

Leonard Duffey*, age 6 (*Leonard Duffey is "Len" Duffey, who married "Grandma" Duffey)

Lucy J. Duffey, age 3

According to his death certificate (attached), he died of pneumonia at age 81 years 9 months 16 days.

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Patrick Duffey's Obituary, from the Marshall, MO Newspaper (Thanks again, Mildred Duffey!!) (a copy is attached to his profile):

--Mr. Patrick Duffey Passes Away After Brief Illness, One of Saline's Best and Most Respected Citizens--

At his home in the Cretcher neighborhood, Patrick Duffey died Thursday, February 1, 1912, of pneumonia, after a brief illness of a few days. His death came suddenly and unexpected, although he was one of the oldest citizens of the county.

The deceased, who was born in Kildare county, Ireland, March 15, 1830 and was 82 years old last March, came to the United States in 1847 with is parents and settled on a farm near Marshall. In 1855 he was married to Miss Alice Dickerson, who was the daughter of one of the first settlers of this county. He enlisted in the Civil War in 1860 as a Confederate soldier and fought until the year 1864.

Born to this union were nine children all living but one, named Margaret Ann who died in infancy. Those surviving are as follows: The widow Mrs. Alice Duffey; the following children: Mrs. Chas. Weathers of Kansas City, Kansas; Mrs. Perry Hunt of Sweet Springs, MO; Mrs. R. H. Mark, Mrs. E. Remberts and Mrs. Wm. Oser of Marshall; Mr. Laburn Duffey of Denburg, N. Dakota; Mr. Leonard Duffey of Sedalia, MO., and Mr. Mike Duffey, who lived on the farm and looked after his aged parents in their declining years. Besides the widow and children left to mourn are the sisters and brothers, Mrs. Bridget Holmes of Shackelford; Mrs. Tina Hannahan of Kansas City, Kansas; Mrs. Wm. Ackers of Marshall; Mr. Kit Duffey of Mexico, MO., and Mr. Peter Duffey and Lawrence Duffey of near Kansas City and Margaret Origg of Shackelford. All the children of the deceased arrived at the bedside of their father during his last hours of this natural life, except one son Laburn of N. Dakota.

The deceased was laid to rest in the Antioch cemetery in the midst of the dear relatives and unlimited number of faithful and untiring neighbors and friends.