JC
John Callahan — 1900 US Census Record
Linked across censuses1900 United States Federal Census · Fillmore, Minnesota
Our Model Tree links this John Callahan across the 1900 and 1910 US Censuses in Fillmore, Minnesota (XGBoost, ~Confirmed) — first a head (b.~1850), then head of a 11-person household.
Age 50
b. ~1850
Male
Head
Born: Ireland
Married
1900 Census Record Details
| Census Year | 1900 |
| Location | Fillmore, Minnesota |
| Surname | Callahan |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Ireland |
| Birth Month | June |
| Birth Year | 1850 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Laborer (day) |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Laborer |
| Township / Ward | Carrollton Township Lanesboro Village |
| Est. Birth Year | ~1850 |
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.
11 people recorded at the same address in the 1900 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mary Callahan | Daughter | — | 24 | ~1876 |
| Margaret Callahan | Daughter | — | 14 | ~1886 |
| Johanna Callahan | Daughter | — | 22 | ~1878 |
| Elizabeth Callahan | Daughter | — | 8 | ~1892 |
| Ellen Callahan | Daughter | — | 10 | ~1890 |
| John Callahan | Head | — | 50 | ~1850 |
| Michael Callahan | Son | — | 17 | ~1883 |
| Daniel Callahan | Son | — | 13 | ~1887 |
| Thomas Callahan | Son | — | 5 | ~1895 |
| William Callahan | Son | — | 16 | ~1884 |
| Ann Callahan | Spouse | — | 50 | ~1850 |
Census Appearances
1900
Fillmore, Minnesota
Head, age 50
Fillmore, Minnesota · implied b. ~1850 — 11 household members
| Surname | Callahan |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Ireland |
| Birth Month | June |
| Birth Year | 1850 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Laborer (day) |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1910
Houston, Minnesota
Head, age 61
Houston, Minnesota · implied b. ~1849 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Calahan |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Ireland |
| Years Married | 28 |
| Year of Immigration | 1866 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Farmer |
| Industry | General Farm |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 Callahan across 2 US Census years (1900 and 1910) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Callahan
Head · 1900 · age 50 · b. ~1850 · Minnesota
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1900 US Federal Census — Fillmore, Minnesota
Open full size
1900 US Federal Census — Fillmore, Minnesota
Page Contents
49 people indexed on this census page (ia:1900:12thcensusofpopu763unit:0534)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ole Wilberg | 59 | Head | Carpenter | Norway |
| 2 | Dorthe Wilberg | 81 | Mother | — | Norway |
| 3 | Ole House | 55 | Head | Carpenter | Norway |
| 4 | Christine House | 55 | Wife | — | Norway |
| 5 | Ida House | 17 | Daughter | At School | Iowa |
| 6 | Inga House | 11 | Daughter | At School | Minnesota |
| 7 | Andrew Everson | 73 | Head | Farmer (Retired) | Norway |
| 8 | Elia Everson | 62 | Wife | — | Norway |
| 9 | Nellie Everson | 25 | Daughter | — | Minnesota |
| 10 | Gilbert Everson | 22 | Son | — | Minnesota |
| 11 | Carrie Stein | 75 | Head | — | Norway |
| 12 | Johanna Stein | 28 | Daughter | — | Minnesota |
| 13 | Andrew Nepstad | 31 | Son-in-law | Barber | Norway |
| 14 | Alex Holton | 69 | Head | Laborer (Day) | Pennsylvania |
| 15 | Mellissa Holton | 52 | Wife | — | New York |
| 16 | Florence Holton | 25 | Daughter | Dressmaker | Minnesota |
| 17 | Daniel Holton | 23 | Son | Bridges (Laborer) | Minnesota |
| 18 | Dollie Holton | 19 | Daughter | — | Minnesota |
| 19 | Mae Holton | 13 | Daughter | At School | Minnesota |
| 20 | Eugene Young | 29 | Son-in-law | Laborer (Farm) | Minnesota |
| 21 | Cora Young | 28 | Wife | — | Minnesota |
| 22 | Flossie Young | 3 | Daughter | — | Minnesota |
| 23 | Martha Nelson | 42 | Head | — | Iowa |
| 24 | John Callahan THIS PERSON | 49 | Head | Laborer (Day) | Ireland |
| 25 | Ann Callahan | 49 | Wife | — | Ireland |
| 26 | Mary Ann Callahan | 23 | Daughter | Dressmaker | Minnesota |
| 27 | Johanna Callahan | 21 | Daughter | — | Minnesota |
| 28 | Michael Callahan | 17 | Son | At School | Minnesota |
| 29 | William Callahan | 15 | Son | At School | Minnesota |
| 30 | Margaret Callahan | 14 | Daughter | At School | Minnesota |
| 31 | Daniel Callahan | 12 | Son | At School | Minnesota |
| 32 | Ellen Callahan | 10 | Daughter | At School | Minnesota |
| 33 | Elizabeth Callahan | 7 | Daughter | At School | Minnesota |
| 34 | Thomas Callahan | 4 | Son | — | Minnesota |
| 35 | L. J. Trowbridge | 44 | Head | Day Laborer | Illinois |
| 36 | Rachael Trowbridge | 48 | Wife | — | Wisconsin |
| 37 | George Trowbridge | 21 | Son | Laborer (Farm) | South Dak |
| 38 | Ralf Trowbridge | 18 | Son | Laborer (Farm) | South Dak |
| 39 | Louise Trowbridge | 16 | Daughter | Servant (Hotel) | Minnesota |
| 40 | Sarah Ann Trowbridge | 14 | Daughter | At School | Minnesota |
| 41 | Earl Trowbridge | 11 | Son | At School | Minnesota |
| 42 | Ole Trowbridge | 9 | Son | At School | Minnesota |
| 43 | Thomas Trowbridge | 5 | Son | — | Minnesota |
| 44 | John Mahoney | 74 | Head | Farmer | Ireland |
| 45 | Mary Mahoney | 73 | Wife | — | Ireland |
| 46 | Mary Mahoney | 27 | Daughter | Housekeeper | Minnesota |
| 47 | Charles Johnson | 30 | Head | Laborer (Day) | Norway |
| 48 | Anna Johnson | 25 | Wife | — | Minnesota |
| 49 | Herbert Johnson | 2 | Son | — | Minnesota |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1900 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)