JD
John Duffy — 1910 US Census Record
Linked across censuses1910 United States Federal Census · Flathead, Montana
Our Model Tree links this John Duffy across the 1900 and 1910 US Censuses in Flathead, Montana (XGBoost, ~Confirmed) — first a head (b.~1863), then head of a 10-person household.
Age 47
b. ~1863
Male
Head
Born: Ohio
Married
1910 Census Record Details
| Census Year | 1910 |
| Location | Flathead, Montana |
| Surname | Duffy |
| Given Name | John F. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Ohio |
| Years Married | 25 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ohio |
| Additional Details | |
| Occupation | Lawyer |
| Industry | General Practice |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Lawyer |
| Township / Ward | Kalispell Township |
| Est. Birth Year | ~1863 |
Household Members
Census records only state relationship to the household head.
Pairwise kinship is derived (~90–95% accurate), not recorded.
Step/blended families and boarders can break it.
10 people recorded at the same address in the 1910 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mary Duffy | Daughter | — | 10 | ~1900 |
| Anita Duffy | Daughter | — | 7 | ~1903 |
| John Duffy | Head | — | 47 | ~1863 |
| Alfred Duffy | Son | — | 12 | ~1898 |
| George Duffy | Son | — | 14 | ~1896 |
| Frank Duffy | Son | — | 16 | ~1894 |
| Raymond Duffy | Son | — | 23 | ~1887 |
| James Duffy | Son | — | 20 | ~1890 |
| Gregory Duffy | Son | — | 24 | ~1886 |
| Adda Duffy | Spouse | — | 47 | ~1863 |
Census Appearances
1900
Flathead, Montana
Head, age 38
Flathead, Montana · implied b. ~1862 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Daffy |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Ohio |
| Birth Month | July |
| Birth Year | 1862 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ohio |
| Occupation | Attorney At Law |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1910
Flathead, Montana
Head, age 47
Flathead, Montana · implied b. ~1863 — 10 household members
| Surname | Duffy |
| Given Name | John F. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Ohio |
| Years Married | 25 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ohio |
| Occupation | Lawyer |
| Industry | General Practice |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
Model Tree
An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Our Model Tree links John Duffy across 2 US Census years (1900 and 1910) in Flathead, Montana, using XGBoost record linkage.
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This person
Anchor record
John Duffy
Head · 1910 · age 47 · b. ~1863 · Montana
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1910 US Federal Census — Flathead, Montana
Open full size
1910 US Federal Census — Flathead, Montana
Page Contents
48 people indexed on this census page (ia:1910:13thcensus1910po832unit:0207)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Paris O. Collier | 45 | Head | Engineer | Minnesota |
| 2 | Hattie Collier | 46 | Wife | — | Indiana |
| 3 | Thomas Collier | 22 | Son | Surveyor | Minnesota |
| 4 | Oliver Collier | 20 | Son | Teamster | Minnesota |
| 5 | Maurite Collier | 13 | Daughter | — | South Dakota |
| 6 | Ruth Collier | 12 | Daughter | — | Michigan |
| 7 | Ernest Walsh | 31 | Head | Laborer | Switzerland |
| 8 | Edith Walsh | 31 | Wife | — | Michigan |
| 9 | Ruth Walsh | 10 | Stepdaughter | — | Michigan |
| 10 | Charles J. Owens | 44 | Head | Sawyer | Michigan |
| 11 | Ellen Owens | 40 | Wife | — | English |
| 12 | Chester Owens | 20 | Son | Laborer | Michigan |
| 13 | Harry Owens | 14 | Son | — | Wisconsin |
| 14 | Mabel Owens | 12 | Daughter | — | Wisconsin |
| 15 | William Owens | 9 | Son | — | Wisconsin |
| 16 | Patsy Owens | 7 | Son | — | Montana |
| 17 | Florence Owens | 4 | Daughter | — | Montana |
| 18 | Mary Buckley | 74 | Head | — | Ireland |
| 19 | William Buckley | 28 | Son | Fireman | English |
| 20 | Irwin F. Davis | 61 | Head | Filer | New York |
| 21 | Selena Davis | 58 | Wife | — | Switzerland |
| 22 | Bert B. Davis | 19 | Son | — | Montana |
| 23 | James V. Mcwilliams | 64 | Head | Laborer | Wisconsin |
| 24 | Malinda V. Mcwilliams | 49 | Wife | — | New York |
| 25 | John F. Duffy THIS PERSON | 47 | Head | Lawyer | Ohio |
| 26 | Adda F. Duffy | 47 | Wife | — | Ohio |
| 27 | Gregory M. Duffy | 24 | Son | Bookkeeper | Ohio |
| 28 | Raymond V. Duffy | 23 | Son | Engineer | Ohio |
| 29 | James J. Duffy | 20 | Son | Farm Laborer | Ohio |
| 30 | Frank L. Duffy | 16 | Son | Farm Laborer | Montana |
| 31 | George W. Duffy | 14 | Son | — | Montana |
| 32 | Alfred Duffy | 12 | Son | — | Montana |
| 33 | Mary D. Duffy | 10 | Daughter | — | Montana |
| 34 | Anita I. Duffy | 7 | Daughter | — | Montana |
| 35 | Charles Munckton | 45 | Head | Engineer | Illinois |
| 36 | Anna Munckton | 40 | Wife | — | Wisconsin |
| 37 | Henry Mcclure | 53 | Head | Farmer | Canada French |
| 38 | Eliza Mcclure | 54 | Wife | — | Virginia |
| 39 | Mattie M. Mcclure | 16 | Daughter | Cash Girl | Minnesota |
| 40 | Edith L. Mcclure | 13 | Daughter | — | Minnesota |
| 41 | Evelyn G. Mcclure | 8 | Adopted Daughter | — | Minnesota |
| 42 | Henry H. Coram | 50 | Head | Machine Man | Canada English |
| 43 | Mattie Coram | 50 | Wife | — | Maine |
| 44 | Paul S. Coram | 19 | Son | Labourer | New Hampshire |
| 45 | Clayton E. Coram | 17 | Son | — | New Hampshire |
| 46 | William Mcmullan | 50 | Head | Woodsman | Canada English |
| 47 | Christie Mcmullan | 40 | Wife | — | Canada English |
| 48 | Ward Mcmullan | 20 | Son | Laborer | Michigan |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1910 United States Federal Census (NARA). Our Model Tree links this person across census decades using XGBoost-based record linkage, with per-link confidence scores. Household corroboration strengthens the signal when co-residents appear on the same census pages in multiple years.
Source: National Archives and Records Administration (NARA)