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John Baldwin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hamilton-County, Indiana
Our Model Tree links this John Baldwin across the 1920, 1930 and 1940 US Censuses in Hamilton-County, Indiana (XGBoost, ~Confirmed) — first a head (b.~1850), then head of a 3-person household.
Age 90
b. ~1850
Male
Head
Born: Indiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Hamilton-County, Indiana |
| Surname | Baldwin |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 90 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Town of Westfield |
| 1935 Residence (County) | Hamilton |
| Additional Details | |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Town Of Westfield |
| 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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Baldwin | Head | — | 90 | ~1850 |
| Sarah Baldwin | Spouse | — | 87 | ~1853 |
| Mary Baldwin | Daughter | — | 53 | ~1887 |
Census Appearances
1920
Hamilton, Indiana
Head, age 69
Hamilton, Indiana · implied b. ~1851 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Baldwin |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 69 |
| Marital Status | Married |
| Birthplace | Indiana |
| Father's Birthplace | N. Carolina |
| Mother's Birthplace | Ohio |
| Occupation | Farmer |
| Industry | Gen Farm |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Hamilton, Indiana
Head, age 80
Hamilton, Indiana · implied b. ~1850 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Baldwin |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 80 |
| Marital Status | Married |
| Birthplace | Indiana |
| Age at First Marriage | 25 |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | Indiana |
| Occupation | Sexton |
| Industry | Cemetery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 8,000 |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Hamilton-County, Indiana
Head, age 90
Hamilton-County, Indiana · implied b. ~1850 — 3 household members
| Surname | Baldwin |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 90 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Town of Westfield |
| 1935 Residence (County) | Hamilton |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Baldwin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Baldwin
Head · 1940 · age 90 · b. ~1850 · Indiana
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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 — Hamilton-County, Indiana
Open full size
1940 US Federal Census — Hamilton-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01050-00563)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | La Verne Coaltrin | 44 | Head | — | Indiana |
| 2 | Lola J. Coaltrin | 47 | Wife | Telephone Operator | Indiana |
| 3 | Frank West | 45 | Head | Policeman | Indiana |
| 4 | Clyde R. Johns | 62 | Head | Proprietor | Indiana |
| 5 | Chisla J. Johns | 58 | Wife | Cook | Indiana |
| 6 | William H. Lee | 80 | Head | — | Indiana |
| 7 | Hayes Beaver | 63 | Head | Proprietor | Indiana |
| 8 | Flora Beaver | 58 | Wife | Cook | Indiana |
| 9 | Lizzie Beaver | 81 | Mother | Cook | Indiana |
| 10 | Lora Riddle | 21 | Lodger | Proprietor | Indiana |
| 11 | James D. Mcavoy | 61 | Head | Telephone Lineman | Indiana |
| 12 | Mary F. Mcavoy | 45 | Wife | — | Indiana |
| 13 | Katherine R. Denney | 82 | Head | — | Indiana |
| 14 | Odie Randall | 56 | Head | Carpenter | Indiana |
| 15 | Bernice Randall | 50 | Daughter | — | Indiana |
| 16 | Clifton Stalker | 58 | Head | Rural Mail Carrier | Indiana |
| 17 | Hattie Stalker | 58 | Wife | — | Indiana |
| 18 | Orval H. Cox | 51 | Head | Minister | Indiana |
| 19 | Lois Cox | 48 | Wife | Grade Teacher | Indiana |
| 20 | Rose M. Sandy | 30 | Lodger | Grade Teacher | Indiana |
| 21 | John J. Baldwin THIS PERSON | 90 | Head | — | Indiana |
| 22 | Sarah J. Baldwin | 87 | Wife | — | N. Carolina |
| 23 | Mary Baldwin | 53 | Daughter | — | Indiana |
| 24 | Oliver H. New | 59 | Head | Owner Proprietor | Indiana |
| 25 | Elsie V. New | 61 | Wife | — | Indiana |
| 26 | Lucile New | 24 | Daughter | — | Indiana |
| 27 | Osie B. Ab. Hadley | 67 | Sister-in-law | — | Indiana |
| 28 | Thomas A. Fesmire | 72 | Head | — | N. Carolina |
| 29 | Elisabeth Fesmire | 78 | Wife | — | N. Carolina |
| 30 | Vaskti Perisho | 70 | Sister | — | N. Carolina |
| 31 | Alice E. Stanley | 54 | Head | — | Indiana |
| 32 | Allan Stanley | 25 | Son | Grocery Clerk | Canada |
| 33 | Lillian Stanley | 21 | Daughter-in-law | — | Indiana |
| 34 | Helen Eates | 58 | Sister | — | Indiana |
| 35 | John J. Briles | 75 | Head | Farmer | N. Carolina |
| 36 | Maude E. Briles | 53 | Wife | — | Indiana |
| 37 | Simeon O. Smith | 34 | Head | Compositor | Ohio |
| 38 | Ivaun L. Smith | 34 | Wife | Linotype Operat. | Ohio |
| 39 | Velma Brunn | 24 | Lodger | — | Illinois |
| 40 | Henry H. Baumeir | 47 | Head | Salesman | New York |
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)