JW
John Walsh — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Louis-City-County, Missouri
Our Model Tree links this John Walsh across the 1930 and 1940 US Censuses in St.-Louis-City-County, Missouri (XGBoost, ~Confirmed) — first a son (b.~1915), then head of a 12-person household.
Age 25
b. ~1915
Male
Son
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-City-County, Missouri |
| Surname | Walsh |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | St. Louis (city) |
| 1935 Residence (County) | St. Louis City |
| Additional Details | |
| Occupation | Machinist |
| Industry | Chemical Mfg Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 715 |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Occupation | Machinist |
| Township / Ward | St Louis City |
| Est. Birth Year | ~1915 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Loretta Walsh | Daughter | — | 6 | ~1934 |
| Patricia Walsh | Daughter | — | 18 | ~1922 |
| Agnes Walsh | Head | — | 54 | ~1886 |
| Mary Walsh | Other | — | 66 | ~1874 |
| Richard Walsh | Son | — | 20 | ~1920 |
| Daniel Walsh | Son | — | 13 | ~1927 |
| Edward Walsh | Son | — | 34 | ~1906 |
| James Walsh | Son | — | 30 | ~1910 |
| Thomas Walsh | Son | — | 15 | ~1925 |
| Francis Walsh | Son | — | 22 | ~1918 |
| John Walsh | Son | — | 25 | ~1915 |
| Joseph Walsh | Son | — | 12 | ~1928 |
Census Appearances
1930
St Louis, …
Son, age 15
St Louis, Missouri · implied b. ~1915 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Walsh |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Can Read/Write | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
St.-Louis-City-County, Missouri
Son, age 25
St.-Louis-City-County, Missouri · implied b. ~1915 — 12 household members
| Surname | Walsh |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | St. Louis (city) |
| 1935 Residence (County) | St. Louis City |
| Occupation | Machinist |
| Industry | Chemical Mfg Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 715 |
| 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 John Walsh across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Walsh
Son · 1940 · age 25 · b. ~1915 · Missouri
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Sibling
Loretta Walsh
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Walsh
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Walsh
Sibling · 1940 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Walsh
Sibling · 1940 · age 34
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daniel Walsh
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Walsh
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Walsh
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Walsh
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Walsh
Sibling · 1940 · age 12
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 — 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-t0627-02211-00860)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Arthur Ritter | 63 | Head | Painter | Missouri |
| 42 | Lilly Ritter | 51 | Wife | — | Missouri |
| 43 | Georgine Mare | 55 | Sister in Law | Bookkeeper | Missouri |
| 44 | Venita Schembacher | 45 | Sister in Law | — | Missouri |
| 45 | Elmo Crump | 50 | Head | Plumber | Missouri |
| 46 | Catherine Crump | 49 | Wife | — | Missouri |
| 47 | Elmo E. Crump | 23 | Son | — | Missouri |
| 48 | William Crump | 21 | Son | Bookkeeper | Missouri |
| 49 | Rose Mary Crump | 25 | Daughter | Secretary | Missouri |
| 50 | Gerald Crump | 20 | Son | Draughtsman | Missouri |
| 51 | Emily Crump | 18 | Daughter | — | Missouri |
| 52 | Bernard Crump | 16 | Son | — | Missouri |
| 53 | Jack Crump | 15 | Son | — | Missouri |
| 54 | Cathleen Crump | 14 | Daughter | — | Missouri |
| 55 | Agnes Walsh | 54 | Head | — | Missouri |
| 56 | Edward Walsh | 34 | Son | Bricklayer | Missouri |
| 57 | James Walsh | 30 | Son | Stone Mason | Missouri |
| 58 | John Walsh THIS PERSON | 25 | Son | Machinist | Missouri |
| 59 | Francis Walsh | 22 | Son | — | Missouri |
| 60 | Richard Walsh | 20 | Son | Shipping Clerk | Missouri |
| 61 | Patricia Walsh | 18 | Daughter | — | Missouri |
| 62 | Thomas Walsh | 15 | Son | — | Missouri |
| 63 | Daniel Walsh | 13 | Son | — | Missouri |
| 64 | Joseph Walsh | 12 | Son | — | Missouri |
| 65 | Loretta Walsh | 6 | Daughter | — | Missouri |
| 66 | Mary Walsh | 66 | Sister in Law | Seamstress | Irish Free State |
| 67 | Alfonse Heidemann | 54 | Head | Money Clerk | Missouri |
| 68 | Elizabeth Heidemann | None | Wife | — | Missouri |
| 69 | Rose Mary Heidemann | 23 | Daughter | Cashier | Missouri |
| 70 | Joseph E Heidemann | 21 | Son | Express Freight Handler | Missouri |
| 71 | William Heidemann | 12 | Son | — | Missouri |
| 72 | Nellie Lane | 51 | Sister in Law | Skiver | Missouri |
| 73 | Henry Burns | 52 | Head | Salesman | Missouri |
| 74 | Harry Burns | 23 | Son | Shoe Pattern Maker | Missouri |
| 75 | Helen Burns | 20 | Daughter | Secretary | Missouri |
| 76 | Dorothy Burns | 18 | Daughter | — | Missouri |
| 77 | Albert Buder | 49 | Head | Roofer | Missouri |
| 78 | Christine Buder | 45 | Wife | Sub Teacher | Alabama |
| 79 | Evatt Buder | 17 | Son | — | Missouri |
| 80 | Christine Buder | 15 | Daughter | — | 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)