JT
John Thornton — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Louis-City-County, Missouri
Our Model Tree links this John Thornton across the 1920, 1930 and 1940 US Censuses in St.-Louis-City-County, Missouri (XGBoost, ~Confirmed) — first a head (b.~1877), then head of a 8-person household.
Age 63
b. ~1877
Male
Head
Born: Ireland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-City-County, Missouri |
| Surname | Thornton |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 63 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | St. Louis City |
| 1935 Residence (County) | St. Louis (City) |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Conductor |
| Industry | Street Car Service |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1820 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Conductor |
| Township / Ward | St Louis City |
| Est. Birth Year | ~1877 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| James Thornton | Son | — | 16 | ~1924 |
| Martin Thornton | Son | — | 14 | ~1926 |
| Bridget Thornton | Spouse | — | 53 | ~1887 |
| Jack Thornton | Son | — | 20 | ~1920 |
| Richard Thornton | Son | — | 18 | ~1922 |
| John Thornton | Head | — | 63 | ~1877 |
| Bernard Thornton | Son | — | 26 | ~1914 |
| Margaret Thornton | Daughter | — | 24 | ~1916 |
Census Appearances
1920
St Louis, …
Head, age 43
St Louis, Missouri · implied b. ~1877 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thornton |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1901 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Conductor |
| Industry | Street Car |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth Country | Ireland |
| Year of Naturalization | 1912 |
| Birthplace (normalized) | ireland |
1930
None, Missouri
Head, age 53
None, Missouri · implied b. ~1877 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thornton |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1901 |
| Age at First Marriage | 29 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Street Car Conductor |
| Industry | Street Car |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 11,000 |
| Radio Set | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
St.-Louis-City-County, Missouri
Head, age 63
St.-Louis-City-County, Missouri · implied b. ~1877 — 8 household members
| Surname | Thornton |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 63 |
| Marital Status | Married |
| Birthplace | Ireland |
| 1935 Residence (City) | St. Louis City |
| 1935 Residence (County) | St. Louis (City) |
| Naturalization Status | Naturalized |
| Occupation | Conductor |
| Industry | Street Car Service |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1820 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 Thornton across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Thornton
Head · 1940 · age 63 · b. ~1877 · Missouri
★ 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 — 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-t0627-02211-00813)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Laura Coleman | 64 | Wife | — | Kentucky |
| 2 | Arlowyne Coleman | 26 | Daughter | Shoe Model | Missouri |
| 3 | Ruth B. Coleman | 22 | Daughter | Comptometer Operator | Missouri |
| 4 | Clara L. Lewis | 39 | Head | Teacher | Louisiana |
| 5 | Sarah Lewis | 34 | Sister | Teacher | Louisiana |
| 6 | Anna Leibovich | 23 | Sister | — | Missouri |
| 7 | Louis Leibovich | 68 | Head | — | Roumania |
| 8 | Rachel Leibovich | 60 | Wife | — | Roumania |
| 9 | John Thornton THIS PERSON | 63 | Head | Conductor | Ireland |
| 10 | Bridget Thornton | 53 | Wife | — | Ireland |
| 11 | Bernard Thornton | 26 | Son | City Service Clerk | Missouri |
| 12 | Margaret Thornton | 24 | Daughter | Laborer | Missouri |
| 13 | Jack Thornton | 20 | Son | Chauffeur | Missouri |
| 14 | Richard Thornton | 18 | Son | Attendant | Missouri |
| 15 | James Thornton | 16 | Son | — | Missouri |
| 16 | Martin Thornton | 14 | Son | — | Missouri |
| 17 | Martin Joseph Egan | 41 | Head | Chauffeur | Missouri |
| 18 | Catherine Egan | 39 | Wife | — | Missouri |
| 19 | Catherine Egan | 17 | Daughter | New Worker | Missouri |
| 20 | Genevieve Egan | 13 | Daughter | — | Missouri |
| 21 | Benjamin Bernhardt | 52 | Head | Owner | Roumania |
| 22 | Lena Bernhardt | 46 | Wife | Saleswoman | Poland |
| 23 | Selma Bernhardt | 20 | Daughter | Saleswoman | Missouri |
| 24 | Beatrice Bernhardt | 16 | Daughter | — | Missouri |
| 25 | Bessie Goldstein | 50 | Sister-in-law | Seamstress | Poland |
| 26 | Edward Wolff | 50 | Head | Foreman | Roumania |
| 27 | Rose Wolff | 46 | Wife | — | Austria |
| 28 | Helen Wolff | 23 | Daughter | Saleswoman | Missouri |
| 29 | Sidney Wolff | 20 | Son | Stenographer | Missouri |
| 30 | Ethel Wolff | 16 | Daughter | — | Missouri |
| 31 | Samuel Saigelmann | 59 | Head | Night Watchman | Poland |
| 32 | Jenny Saigelmann | 54 | Wife | — | Roumania |
| 33 | Sarah Saigelmann | 23 | Daughter | Saleswoman | Missouri |
| 34 | Esther Saigelmann | 22 | Daughter | Saleswoman | Missouri |
| 35 | Alice Saigelmann | 21 | Daughter | Stenographer | Missouri |
| 36 | Hyman Komon | 49 | Head | Interior Decorator | Russia |
| 37 | Sarah Komon | 48 | Wife | — | Russia |
| 38 | Dorothy Komon | 21 | Daughter | Bookkeeper | Missouri |
| 39 | Bernice Komon | 20 | Daughter | Radio Singer | Missouri |
| 40 | Robert Komon | 17 | Son | — | 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)