JH
John Hartman — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jefferson-County, Alabama
Our Model Tree links this John Hartman across the 1920, 1930 and 1940 US Censuses in Jefferson-County, Alabama (XGBoost, ~Confirmed) — first a head (b.~1881), then head of a 3-person household.
Age 59
b. ~1881
Male
Head
Born: New Jersey
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Alabama |
| Surname | Hartman |
| Given Name | John L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | Fairfield City |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Occupation | Template Maker |
| Industry | Steel Mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2000 |
| Highest Grade | H 1 |
| 1935 Residence | Same home |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Template Maker |
| Township / Ward | Fairfield City |
| Est. Birth Year | ~1881 |
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 |
|---|---|---|---|---|
| Esther Hartman | Daughter | — | 27 | ~1913 |
| John Hartman | Head | — | 59 | ~1881 |
| Louisa Hartman | Spouse | — | 56 | ~1884 |
Census Appearances
1920
Jefferson, Alabama
Head, age 38
Jefferson, Alabama · implied b. ~1882 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hartman |
| Given Name | John L |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | New Jersey |
| Occupation | Ironworker |
| Industry | Structural Steel |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1930
Jefferson, Alabama
Head, age 49
Jefferson, Alabama · implied b. ~1881 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hartman |
| Given Name | John S. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | New Jersey |
| Age at First Marriage | 23 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | New Jersey |
| Occupation | Foreman |
| Industry | Car Works |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 6000 |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Jefferson-County, Alabama
Head, age 59
Jefferson-County, Alabama · implied b. ~1881 — 3 household members
| Surname | Hartman |
| Given Name | John L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | New Jersey |
| 1935 Residence (City) | Fairfield City |
| 1935 Residence (County) | Jefferson |
| Occupation | Template Maker |
| Industry | Steel Mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2000 |
| Highest Grade | H 1 |
| 1935 Residence | Same home |
| 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 Hartman 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 Hartman
Head · 1940 · age 59 · b. ~1881 · Alabama
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Jefferson-County, Alabama
Open full size
1940 US Federal Census — Jefferson-County, Alabama
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00047-00190)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Max A. Macon | 38 | Head | Steel Mill | Alabama |
| 2 | Martha Macon | 32 | Wife | — | Alabama |
| 3 | Martha Sue Macon | 9 | Daughter | — | Alabama |
| 4 | Edgar Woodall | 36 | Head | Diesel Engineer | Alabama |
| 5 | Marion X Woodall | 39 | Wife | — | Pennsylvania |
| 6 | William Woodall | 2 | Son | — | Alabama |
| 7 | Antonia Woodall | 75 | Mother | — | Alabama |
| 8 | Owen F Johnston | 34 | Head | Pay-Roll Clerk | Alabama |
| 9 | Esther X Johnston | 31 | Wife | — | Alabama |
| 10 | David Johnston | 5 | Son | — | Alabama |
| 11 | Frank Williams | 30 | Head | Meter Inspector | Connecticut |
| 12 | Lola X Williams | 30 | Wife | — | Alabama |
| 13 | Beatrice Williams | 2 | Daughter | — | Alabama |
| 14 | Elizabeth Williams | 0 | Daughter | — | Alabama |
| 15 | Annabelle Harrison | 36 | Head | Stenographer | Georgia |
| 16 | Bettye Harrison | 16 | Daughter | — | Georgia |
| 17 | Thomas J X Hosey | 48 | Head | Mill-Wright | Alabama |
| 18 | Martha Hosey | 46 | Wife | — | Georgia |
| 19 | Evelyn Hosey | 19 | Daughter | — | Alabama |
| 20 | Mary Jo Hosey | 14 | Daughter | — | Alabama |
| 21 | Jean Hosey | 11 | Daughter | — | Alabama |
| 22 | John L. Hartman THIS PERSON | 59 | Head | Template Maker | New Jersey |
| 23 | Louisa X Hartman | 56 | Wife | — | New Jersey |
| 24 | Esther Hartman | 27 | Daughter | New Worker | New Jersey |
| 25 | Dewitt J. Parsons | 42 | Head | Market Manager | Alabama |
| 26 | Violet X Parsons | 34 | Wife | — | Alabama |
| 27 | Ralph J. Parsons | 8 | Son | — | Alabama |
| 28 | John Wren | 58 | Head | Labor Foreman | Mississippi |
| 29 | Mary E X Wren | 53 | Wife | — | England |
| 30 | Paul Brooks | 28 | Head | Engineer Helper | Alabama |
| 31 | Willie L X Brooks | 27 | Wife | — | Alabama |
| 32 | Rita L. Brooks | 0 | Daughter | — | Alabama |
| 33 | James C. Brooks | 41 | Head | First Helper Tapper | Alabama |
| 34 | Annie X Brooks | 29 | Wife | — | Louisiana |
| 35 | Dennis Brooks | 5 | Son | — | Alabama |
| 36 | Ann Brooks | 3 | Daughter | — | Alabama |
| 37 | Sue Brooks | 2 | Daughter | — | Alabama |
| 38 | Raymond Cunniff | 39 | Head | Clerical Work | Alabama |
| 39 | Lucile X Cunniff | 40 | Wife | Stenographer | Alabama |
| 40 | John R. Jr. Cunniff | 14 | Son | — | Alabama |
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)