HT
Harry Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Louis-City-County, Missouri
Our Model Tree links this Harry Thomas across the 1920, 1930 and 1940 US Censuses in St.-Louis-City-County, Missouri (XGBoost, ~Confirmed) — first a head (b.~1888), then head of a 8-person household.
Age 52
b. ~1888
Male
Head
Born: Missouri
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-City-County, Missouri |
| Surname | Thomas |
| Given Name | Harry |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | St Louis (City) |
| 1935 Residence (County) | St Louis (City) |
| Additional Details | |
| Occupation | Contractor |
| Industry | Private Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Occupation | Contractor |
| Township / Ward | St Louis City |
| Est. Birth Year | ~1888 |
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 Harry | Age | Birth yr |
|---|---|---|---|---|
| Rosemary Thomas | Daughter | — | 10 | ~1930 |
| Gertrude Thomas | Daughter | — | 16 | ~1924 |
| Virginia Thomas | Daughter | — | 21 | ~1919 |
| Harry Thomas | Head | — | 52 | ~1888 |
| Norman Thomas | Son | — | 22 | ~1918 |
| Wilbur Thomas | Son | — | 15 | ~1925 |
| John Thomas | Son | — | 13 | ~1927 |
| Clara Thomas | Spouse | — | 51 | ~1889 |
Census Appearances
1920
St Louis, …
Head, age 32
St Louis, Missouri · implied b. ~1888 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Harry |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Missouri |
| Father's Birthplace | Oregon |
| Mother's Birthplace | Missouri |
| Occupation | Steam Fitter |
| Industry | Contracting Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
St Louis, …
Head, age 42
St Louis, Missouri · implied b. ~1888 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Harry |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Missouri |
| Age at First Marriage | 27 |
| Father's Birthplace | Oregon |
| Mother's Birthplace | Missouri |
| Occupation | Heating Contractor |
| Industry | Furnace |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 70 |
| Radio Set | R |
| Veteran | No |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
St.-Louis-City-County, Missouri
Head, age 52
St.-Louis-City-County, Missouri · implied b. ~1888 — 8 household members
| Surname | Thomas |
| Given Name | Harry |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | St Louis (City) |
| 1935 Residence (County) | St Louis (City) |
| Occupation | Contractor |
| Industry | Private Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1200 |
| Highest Grade | No 8 |
| 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 Harry Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Harry Thomas
Head · 1940 · age 52 · b. ~1888 · 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-t0627-02208-00657)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Reilly | 71 | Head | Carpenter | Illinois |
| 2 | Emma Reilly | 64 | Wife | — | Arkansas |
| 3 | John Jr Reilly | 44 | Son | Investigator | Missouri |
| 4 | Gertrude Reilly | 36 | Daughter | Telephone Operator | Missouri |
| 5 | Louise Reilly | 20 | Daughter | Stenographer | Arkansas |
| 6 | Harry Thomas THIS PERSON | 52 | Head | Contractor | Missouri |
| 7 | Clara Thomas | 51 | Wife | — | Missouri |
| 8 | Norman Thomas | 22 | Son | Salesman | Missouri |
| 9 | Virginia Thomas | 21 | Daughter | New Worker | Missouri |
| 10 | Gertrude Thomas | 16 | Daughter | — | Missouri |
| 11 | Wilbur Thomas | 15 | Son | — | Missouri |
| 12 | John Thomas | 13 | Son | — | Missouri |
| 13 | Rosemary Thomas | 10 | Daughter | — | Missouri |
| 14 | Mary Flaherty | 33 | Head | Nurse | Missouri |
| 15 | Catherine Flaherty | 30 | Sister | Clerk | Missouri |
| 16 | Daniel Flaherty | 26 | Brother | New Worker | Illinois |
| 17 | Thomas Flaherty | 24 | Brother | Tavern Owner | Illinois |
| 18 | Gerard Flaherty | 22 | Brother | Tile Setter | Missouri |
| 19 | Edward Flaherty | 20 | Brother | Tile Setter | Missouri |
| 20 | Florence Flaherty | 18 | Sister | — | Missouri |
| 21 | Elizabeth Flaherty | 16 | Sister | — | Missouri |
| 22 | John Shannahan | 33 | Head | Salesman | Missouri |
| 23 | Adelaide Shannahan | 26 | Wife | Salesman | Missouri |
| 24 | Annie Shannahan | 65 | Mother | — | Missouri |
| 25 | Edward Shannahan | 31 | Son | — | Missouri |
| 26 | Mary Shannahan | 35 | Daughter | Saleslady | Missouri |
| 27 | Patrick Mcmahon | 44 | Head | Contractor | Iowa |
| 28 | Michael Mcmahon | 86 | Father | — | Ohio |
| 29 | Madonna Clark | 19 | Granddaughter | — | S Dakota |
| 30 | Charlene Clark | 12 | Granddaughter | — | S Dakota |
| 31 | Joseph Donohoo | 60 | Head | Clerk | Illinois |
| 32 | Mary Donohoo | 60 | Wife | — | Tennessee |
| 33 | Joseph Jr Donohoo | 25 | Son | Accountant | Missouri |
| 34 | Mary Donohoo | 32 | Daughter | Book Keeper | Missouri |
| 35 | Helen Donohoo | 31 | Daughter | Stenographer | Missouri |
| 36 | James Donohoo | 19 | Son | — | Missouri |
| 37 | Ralph Donohoo | 17 | Son | — | Missouri |
| 38 | Katherine Mcnee | 22 | Lodger | — | Missouri |
| 39 | Sarah Kelley | 64 | Head | — | Kentucky |
| 40 | Vincent Kelley | 28 | Son | — | Missouri |
Related Census Records
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)