JB
John Baldwin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Salt-Lake-County, Utah
Our Model Tree links this John Baldwin across the 1920, 1930 and 1940 US Censuses in Salt-Lake-County, Utah (XGBoost, ~Confirmed) — first a head (b.~1890), then head of a 6-person household.
Age 50
b. ~1890
Male
Head
Born: Utah
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Salt-Lake-County, Utah |
| Surname | Baldwin |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Utah |
| 1935 Residence (City) | Salt Lake City |
| 1935 Residence (County) | Salt Lake |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 84 |
| Income (1939) | 1200 |
| Highest Grade | H 8 |
| 1935 Residence | Same house |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
| Occupation | Farmer |
| Township / Ward | Salt Lake City |
| Est. Birth Year | ~1890 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Louise Baldwin | Daughter | — | 18 | ~1922 |
| Floyd Baldwin | Son | — | 15 | ~1925 |
| Helen Baldwin | Spouse | — | 44 | ~1896 |
| John Baldwin | Head | — | 50 | ~1890 |
| Norma Baldwin | Daughter | — | 6 | ~1934 |
| Byron Baldwin | Son | — | 10 | ~1930 |
Census Appearances
1920
Salt Lake, …
Head, age 29
Salt Lake, Utah · implied b. ~1891 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Baldwin |
| Given Name | John R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Utah |
| Father's Birthplace | England |
| Mother's Birthplace | Utah |
| Occupation | farmer |
| Industry | dairy farm |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1930
Salt Lake, …
Head, age 40
Salt Lake, Utah · implied b. ~1890 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Baldwin |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Utah |
| Age at First Marriage | 26 |
| Father's Birthplace | England |
| Mother's Birthplace | Utah |
| Occupation | Farmer |
| Industry | Hay Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 3000 |
| Radio Set | R |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1940
Salt-Lake-County, Utah
Head, age 50
Salt-Lake-County, Utah · implied b. ~1890 — 6 household members
| Surname | Baldwin |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Utah |
| 1935 Residence (City) | Salt Lake City |
| 1935 Residence (County) | Salt Lake |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 84 |
| Income (1939) | 1200 |
| Highest Grade | H 8 |
| 1935 Residence | Same house |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
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.
Show:
This person
Anchor record
John Baldwin
Head · 1940 · age 50 · b. ~1890 · Utah
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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 — Salt-Lake-County, Utah
Open full size
1940 US Federal Census — Salt-Lake-County, Utah
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04226-00018)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Blair Thomas | 6 | son | — | Utah |
| 42 | Wynn Thomas | 4 | son | — | Utah |
| 43 | Nola Thomas | 2 | daughter | — | Utah |
| 44 | Charles D. Pettit | 24 | Head | Petroleum Inspector | Idaho |
| 45 | Echo Pettit | 22 | Wife | — | Utah |
| 46 | Carrol Pettit | 4 | Daughter | — | Utah |
| 47 | Lauana Pettit | 1 | Daughter | — | Utah |
| 48 | Manual Prado | 52 | Head | Boilermaker | New Mexico |
| 49 | Maude Prado | 57 | Wife | — | Montana |
| 50 | John Valdez | 14 | Nephew | — | Colorado |
| 51 | Archie F. Strange | 40 | Head | Barber | Montana |
| 52 | Stella Strange | 34 | Wife | — | New Mexico |
| 53 | Alva Strange | 5 | son | — | Utah |
| 54 | Frances Strange | 67 | Head | — | Missouri |
| 55 | John Baldwin THIS PERSON | 50 | Head | Farmer | Utah |
| 56 | Helen Baldwin | 44 | Wife | — | Utah |
| 57 | Louise Baldwin | 18 | Daughter | — | Utah |
| 58 | Floyd Baldwin | 15 | son | — | Utah |
| 59 | Byron Baldwin | 10 | son | — | Utah |
| 60 | Norma Baldwin | 6 | Daughter | — | Utah |
| 61 | Marion L. Green | 38 | Head | Carpenter | Idaho |
| 62 | Hattie D. Green | 31 | Wife | — | Colorado |
| 63 | Carol Green | 13 | Daughter | — | Oregon |
| 64 | Dolores Green | 11 | Daughter | — | Idaho |
| 65 | John Green | 9 | son | — | Idaho |
| 66 | Frank Green | 2 | son | — | Utah |
| 67 | William H. Green | 36 | Brother | Bridge Carpenter | Idaho |
| 68 | Frank J. Green | 64 | Head | Janitor | Utah |
| 69 | Maude Green | 57 | Wife | — | Utah |
| 70 | Ysabel Chavez | 70 | Head | — | Mexico |
| 71 | Mary Chavez | 61 | Wife | — | Mexico |
| 72 | Manual Chavez | 20 | son | — | Utah |
| 73 | Miyoshi Ueda | 42 | Head | Farmer | Japan |
| 74 | Treadomi Ueda | 35 | Wife | — | Japan |
| 75 | Masumi Ueda | 17 | Daughter | — | Utah |
| 76 | Tamio Ueda | 16 | son | — | Utah |
| 77 | Eugene Ueda | 13 | son | — | Utah |
| 78 | Kenny Ueda | 10 | son | — | Utah |
| 79 | Theodore Ueda | 7 | son | — | Utah |
| 80 | Jane Ueda | 5 | Daughter | — | Utah |
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)