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John Baldwin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mercer-County, New Jersey
Our Model Tree links this John Baldwin across the 1930 and 1940 US Censuses in Mercer-County, New Jersey (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 9-person household.
Age 18
b. ~1922
Male
Son
Born: New Jersey
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mercer-County, New Jersey |
| Surname | Baldwin |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Trenton City |
| 1935 Residence (County) | Mercer |
| Additional Details | |
| Occupation | laborer |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 360 |
| Highest Grade | H-8 |
| 1935 Residence | Same Place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Laborer |
| Township / Ward | Trenton City |
| Est. Birth Year | ~1922 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Beatrice Baldwin | Daughter | — | 19 | ~1921 |
| Gladys Baldwin | Daughter | — | 12 | ~1928 |
| John Baldwin | Son | — | 18 | ~1922 |
| Alfred Baldwin | Son | — | 23 | ~1917 |
| Phillip Baldwin | Son | — | 10 | ~1930 |
| Alfred Baldwin | Head | — | 43 | ~1897 |
| Janet Baldwin | Daughter | — | 8 | ~1932 |
| Rachel Baldwin | Spouse | — | 43 | ~1897 |
| Teresa Baldwin | Daughter | — | 14 | ~1926 |
Census Appearances
1930
Mercer, New …
Son, age 8
Mercer, New Jersey · implied b. ~1922 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Baldwin |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New Jersey |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Mercer-County, New …
Son, age 18
Mercer-County, New Jersey · implied b. ~1922 — 9 household members
| Surname | Baldwin |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Trenton City |
| 1935 Residence (County) | Mercer |
| Occupation | laborer |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 360 |
| Highest Grade | H-8 |
| 1935 Residence | Same Place |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Baldwin
Son · 1940 · age 18 · b. ~1922 · New Jersey
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Sibling
Janet Baldwin
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alfred Baldwin
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gladys Baldwin
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Phillip Baldwin
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Teresa Baldwin
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Beatrice Baldwin
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Mercer-County, New Jersey
Open full size
1940 US Federal Census — Mercer-County, New Jersey
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02437-00284)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frank Ringkamp | 48 | Head | Machinist | New Jersey |
| 2 | Edith Ringkamp | 45 | Wife | — | Pennsylvania |
| 3 | Helen Ringkamp | 22 | Daughter | Stenog. | New Jersey |
| 4 | Ernest Stevenson | 10 | Nephew | — | New Jersey |
| 5 | John Haws | 67 | Head | — | New Jersey |
| 6 | Clara Haws | 64 | Wife | — | New Jersey |
| 7 | Sally Tilton | 75 | Mother-in-law | — | England |
| 8 | William O'Hara | 45 | Head | Salesman | New Jersey |
| 9 | Jane O'Hara | 45 | Wife | — | New Jersey |
| 10 | Marian O'Hara | 23 | Daughter | Secretary | New Jersey |
| 11 | Donald O'Hara | 19 | Son | Attendant | New Jersey |
| 12 | John Harvey | 61 | Lodger | Caster | Scotland |
| 13 | William Turner | 41 | Head | Laborer | England |
| 14 | Annie Turner | 40 | Wife | — | England |
| 15 | William Innes | 30 | Son-in-law | Tester | New Jersey |
| 16 | Irene Innes | 20 | Daughter | — | England |
| 17 | Kathleen Innes | 3 | Daughter | — | New Jersey |
| 18 | Mary J. Sheppard | 71 | Head | — | New Jersey |
| 19 | Lucy O. Sheppard | 40 | Daughter | Practical Nurse | New Jersey |
| 20 | Albert Bruenic | 57 | Lodger | Toolmaker | New York |
| 21 | Francis Conaghan | 38 | Lodger | Bartender | Pennsylvania |
| 22 | Cletus Conaghan | 31 | Lodger | Short Order Cook | New Jersey |
| 23 | Howard Schroeder | 44 | Head | Salesman | New Jersey |
| 24 | Ruth Schroeder | 42 | Wife | — | Pennsylvania |
| 25 | Alfred Baldwin | 43 | Head | Truck Driver | New Jersey |
| 26 | Rachel G. Baldwin | 43 | Wife | — | New Jersey |
| 27 | Alfred Baldwin | 23 | Son | Bellboy | New Jersey |
| 28 | Beatrice Baldwin | 19 | Daughter | Finisher | New Jersey |
| 29 | John Baldwin THIS PERSON | 18 | Son | Laborer | New Jersey |
| 30 | Teresa Baldwin | 14 | Daughter | — | New Jersey |
| 31 | Gladys Baldwin | 12 | Daughter | — | New Jersey |
| 32 | Phillip Baldwin | 10 | Son | — | New Jersey |
| 33 | Janet Baldwin | 8 | Daughter | — | New Jersey |
| 34 | James Mclaughlin | 43 | Head | Foreman | New Jersey |
| 35 | Elizabeth Mclaughlin | 42 | Wife | — | New York |
| 36 | Elizabeth Mclaughlin | 22 | Daughter | Ironer | New Jersey |
| 37 | George Mclaughlin | 19 | Son | Laborer | New Jersey |
| 38 | Elizabeth Gagg | 50 | Lodger | Food Server | New Jersey |
| 39 | Phillip Curry | 57 | Head | Bartender | New Jersey |
| 40 | Ann Curry | 57 | Wife | — | New Jersey |
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)