JD
John Dunn — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Louis-City-County, Missouri
Our Model Tree links this John Dunn across the 1920, 1930 and 1940 US Censuses in St.-Louis-City-County, Missouri (XGBoost, ~Confirmed) — first a head (b.~1892), then head of a 5-person household.
Age 48
b. ~1892
Male
Head
Born: Missouri
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-City-County, Missouri |
| Surname | Dunn |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | St Louis City |
| 1935 Residence (County) | St Louis City |
| Additional Details | |
| Occupation | Laborer |
| Industry | W.P.A. |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 616 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Occupation | Laborer |
| Township / Ward | St Louis City |
| Est. Birth Year | ~1892 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mary Dunn | Daughter | — | 11 | ~1929 |
| Marilyn Dunn | Daughter | — | 8 | ~1932 |
| John Dunn | Head | — | 48 | ~1892 |
| James Dunn | Son | — | 10 | ~1930 |
| Catherine Dunn | Spouse | — | 42 | ~1898 |
Census Appearances
1920
St Louis, …
Head, age 28
St Louis, Missouri · implied b. ~1892 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dunn |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Occupation | Laborer |
| Industry | Paint Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
St Louis, …
Head, age 38
St Louis, Missouri · implied b. ~1892 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dunn |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Missouri |
| Age at First Marriage | 23 |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Occupation | Chauffeur |
| Industry | Private Family |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 10 |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
St.-Louis-City-County, Missouri
Head, age 48
St.-Louis-City-County, Missouri · implied b. ~1892 — 5 household members
| Surname | Dunn |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | St Louis City |
| 1935 Residence (County) | St Louis City |
| Occupation | Laborer |
| Industry | W.P.A. |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 616 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 Dunn across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Dunn
Head · 1940 · age 48 · b. ~1892 · 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 — St.-Louis-City-County, Missouri
Open full size
1940 US Federal Census — St.-Louis-City-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02197-00594)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Nancy Ruhl | 70 | Lodger | — | Missouri |
| 2 | James Kelley | 67 | Lodger | — | Missouri |
| 3 | — | None | — | — | — |
| 4 | Paul J Roesch | 60 | Head | — | Missouri |
| 5 | Anna A Roesch | 55 | Wife | — | Germany |
| 6 | Mary Berthoux | 60 | Boarder | Cook | Illinois |
| 7 | Sherman Belk | 33 | Head | Maintainer | Missouri |
| 8 | Edith Belk | 27 | Wife | — | Missouri |
| 9 | Garry Belk | 5 | Son | — | Missouri |
| 10 | Kenneth Belk | 0 | Son | — | Missouri |
| 11 | Elizabeth Kasper | 83 | Head | — | Missouri |
| 12 | Adeline Kasper | 56 | Daughter | Maintainer | Missouri |
| 13 | Julia Kasper | 48 | Daughter | Maintainer | Missouri |
| 14 | John Dunn THIS PERSON | 48 | Head | Laborer | Missouri |
| 15 | Catherine Dunn | 42 | Wife | — | Missouri |
| 16 | Mary Catherine Dunn | 11 | Daughter | — | Missouri |
| 17 | James Patrick Dunn | 10 | Son | — | Missouri |
| 18 | Marilyn Dunn | 8 | Daughter | — | Missouri |
| 19 | James Linton | 44 | Head | Garage Maker | Missouri |
| 20 | Bertha Linton | 45 | Wife | — | Pennsylvania |
| 21 | Steve Kofron | 48 | Head | Salesman | Missouri |
| 22 | Clara Kofron | 44 | Wife | — | Missouri |
| 23 | Edward Kofron | 24 | Son | Salesman | Missouri |
| 24 | Marie Kofron | 18 | Daughter | Saleslady | Missouri |
| 25 | Russell Kofron | 15 | Son | — | Missouri |
| 26 | Bernice Kofron | 13 | Daughter | — | Missouri |
| 27 | Lorraine Kofron | 8 | Daughter | — | Missouri |
| 28 | Everett Ditt | 32 | Head | Cutter | Missouri |
| 29 | Melva Ditt | 30 | Wife | — | Missouri |
| 30 | Dolores Ditt | 2 | Daughter | — | Missouri |
| 31 | Frank C Graham | 40 | Head | Switchman | Missouri |
| 32 | Verna Graham | 38 | Wife | — | Florida |
| 33 | Robert Lee Graham | 10 | Son | — | Missouri |
| 34 | Charlotte Ann Graham | 8 | Daughter | — | Missouri |
| 35 | Martha Lou Graham | 6 | Daughter | — | Missouri |
| 36 | Earl Crawford | 34 | Head | Assembler | Missouri |
| 37 | Lucille Crawford | 30 | Wife | — | Colorado |
| 38 | Earl Crawford | 3 | Son | — | Missouri |
| 39 | Gerald Crawford | 0 | Son | — | Missouri |
| 40 | Emile Pohlig | 38 | Head | — | 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)