JC
James Callahan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Buchanan-County, Missouri
Our Model Tree links this James Callahan across the 1920, 1930 and 1940 US Censuses in Buchanan-County, Missouri (XGBoost, ~Confirmed) — first a head (b.~1874), then head of a 3-person household.
Age 66
b. ~1874
Male
Head
Born: New York
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Buchanan-County, Missouri |
| Surname | Callahan |
| Given Name | James H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 66 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | St. Joseph city |
| 1935 Residence (County) | Buchanan |
| Additional Details | |
| Occupation | Brick layer |
| Industry | Building Contractor |
| Class of Worker | PW |
| Hours Worked | 16 |
| Income (1939) | 1200 |
| Highest Grade | 8 |
| 1935 Residence | Same Place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Brick Layer |
| Township / Ward | St Joseph City |
| Est. Birth Year | ~1874 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| James Callahan | Son | — | 26 | ~1914 |
| Amelia Callahan | Spouse | — | 59 | ~1881 |
| James Callahan | Head | — | 66 | ~1874 |
Census Appearances
1920
Buchanan, Missouri
Head, age 46
Buchanan, Missouri · implied b. ~1874 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Callahan |
| Given Name | James H |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | New York |
| Father's Birthplace | Ireland |
| Mother's Birthplace | New York |
| Occupation | Contractor |
| Industry | Excavating |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Buchanan, Missouri
Head, age 56
Buchanan, Missouri · implied b. ~1874 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Callahan |
| Given Name | James H |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | New York |
| Age at First Marriage | 27 |
| Father's Birthplace | Irish Free St |
| Mother's Birthplace | New York |
| Occupation | Contractor |
| Industry | Brick |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 4000 |
| Radio Set | R |
| Veteran | No |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Buchanan-County, Missouri
Head, age 66
Buchanan-County, Missouri · implied b. ~1874 — 3 household members
| Surname | Callahan |
| Given Name | James H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 66 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (City) | St. Joseph city |
| 1935 Residence (County) | Buchanan |
| Occupation | Brick layer |
| Industry | Building Contractor |
| Class of Worker | PW |
| Hours Worked | 16 |
| Income (1939) | 1200 |
| Highest Grade | 8 |
| 1935 Residence | Same Place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 James Callahan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
James Callahan
Head · 1940 · age 66 · b. ~1874 · Missouri
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Buchanan-County, Missouri
Open full size
1940 US Federal Census — Buchanan-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02089-00073)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Helen M. Wise | 32 | Wife | — | Missouri |
| 42 | Jewell D. Newman | 35 | Head | Bookkeeper | Missouri |
| 43 | Delpha Newman | 33 | Wife | Secretary | Missouri |
| 44 | Alma Black | 27 | Sister-in-law | Dental Asst. | Missouri |
| 45 | James H. Callahan THIS PERSON | 66 | Head | Brick Layer | New York |
| 46 | Amelia G. Callahan | 59 | Wife | — | Germany |
| 47 | James G. Callahan | 26 | Son | Bricklayer | Missouri |
| 48 | Louis C. Kirk | 56 | Head | Asst. Manager | Missouri |
| 49 | Ora Kirk | 49 | Wife | — | Missouri |
| 50 | Clarence Shaw | 28 | Head | Salesman | Missouri |
| 51 | Virginia Shaw | 25 | Wife | Machine Operator | Missouri |
| 52 | Dixie Shaw | 1 | Daughter | — | Missouri |
| 53 | Edith Magee | 63 | Nurse | Practical Nurse | Missouri |
| 54 | John Crowe | 62 | Head | Gun Craft | Iowa |
| 55 | Marie Crowe | 63 | Wife | — | Iowa |
| 56 | Ray J. Powell | 42 | Head | Motorcycle Policeman | Missouri |
| 57 | Nelde Powell | 37 | Wife | — | Kansas |
| 58 | Charles Sinclair | 20 | Brother-in-law | Attendant | Kansas |
| 59 | Frederick S. Pomeroy | 65 | Head | — | Kansas |
| 60 | Katherine Pomeroy | 63 | Wife | — | Missouri |
| 61 | Clyde W. Harvey | 50 | Head | Owner Mgr. | Kansas |
| 62 | Regina Harvey | 47 | Wife | Partner | Missouri |
| 63 | Roland Hill | 33 | Head | Civil Engineer | Missouri |
| 64 | Mary Hill | 33 | Wife | — | Missouri |
| 65 | Roland Hill | 5 | Son | — | Missouri |
| 66 | Emilie Marcham | 49 | Head | Saleslady | Missouri |
| 67 | Merle Johnson | 50 | Head | — | Iowa |
| 68 | Maxine Johnson | 27 | Daughter | Secretary | Iowa |
| 69 | William Johnson | 21 | Son | Clerk | Iowa |
| 70 | Arthur D. Mcanulty | 54 | Head | Cattle Selling & Weighing | Illinois |
| 71 | Maona Mcanulty | 40 | Wife | — | Missouri |
| 72 | Mary Lucille Mcanulty | 12 | Daughter | — | Missouri |
| 73 | Robert G. Mcanulty | 10 | Son | — | Missouri |
| 74 | Melvin Lee Mcanulty | 5 | Son | — | Missouri |
| 75 | Vanas Schramberger | 27 | Sister-in-law | Clothing Teacher | Missouri |
| 76 | Curley King | 28 | Head | Salesman | Missouri |
| 77 | Elizabeth King | 27 | Wife | Registered Nurse | Missouri |
| 78 | Milton E. Ozenberger | 30 | Head | Watchman | Kansas |
| 79 | Helen Ozenberger | 31 | Wife | — | Missouri |
| 80 | James Ozenberger | 8 | Son | — | Missouri |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)