JW
John Welsh — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Louis-City-County, Missouri
Our Model Tree links this John Welsh across the 1930 and 1940 US Censuses in St.-Louis-City-County, Missouri (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 4-person household.
Age 14
b. ~1926
Male
Son
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-City-County, Missouri |
| Surname | Welsh |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | St. Louis |
| 1935 Residence (County) | St. Louis City |
| Additional Details | |
| Highest Grade | H-1 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | St Louis |
| Est. Birth Year | ~1926 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Pearl Welsh | Spouse | — | 44 | ~1896 |
| John Welsh | Son | — | 14 | ~1926 |
| John Welsh | Head | — | 50 | ~1890 |
| William Welsh | Son | — | 12 | ~1928 |
Census Appearances
1930
St Louis, …
Son, age 3
St Louis, Missouri · implied b. ~1927 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Walsh |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
St.-Louis-City-County, Missouri
Son, age 14
St.-Louis-City-County, Missouri · implied b. ~1926 — 4 household members
| Surname | Welsh |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | St. Louis |
| 1935 Residence (County) | St. Louis City |
| Highest Grade | H-1 |
| 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 Welsh across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Welsh
Son · 1940 · age 14 · b. ~1926 · Missouri
★ You are viewing this record
Sibling
William Welsh
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
35 people indexed on this census page (nara:1940:m-t0627-02206-00588)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Florence Codd | 44 | Wife | — | Missouri |
| 42 | George Eckhoff | 14 | Son | — | Missouri |
| 43 | William H. Eckhoff | 24 | Head | Chauffer | Missouri |
| 44 | Ruth Eckhoff | 23 | Wife | — | Missouri |
| 49 | Earl S. Bryant | 58 | Head | Manager | Indiana |
| 50 | Hilda Bryant | 37 | Wife | — | Missouri |
| 51 | Ann Bryant | 18 | Daughter | Beautician | Illinois |
| 52 | Betty Bryant | 15 | Daughter | — | Illinois |
| 53 | Josephine Zahner | 66 | Mother-in-law | — | Missouri |
| 54 | Ralph A. Heisel | 42 | Head | Fireman | Missouri |
| 55 | Marie Heisel | 34 | Wife | — | Illinois |
| 56 | Jack Heisel | 6 | Son | — | Missouri |
| 57 | Ralph Heisel | 4 | Son | — | Missouri |
| 58 | William Heisel | 2 | Son | — | Missouri |
| 59 | John Welsh | 50 | Head | Postal Clerk | New York |
| 60 | Pearl Welsh | 44 | Wife | — | Kansas |
| 61 | John Jr. Welsh THIS PERSON | 14 | Son | — | Missouri |
| 62 | William Welsh | 12 | Son | — | Missouri |
| 63 | Cane Deal | 49 | Head | Rate Clerk | Indiana |
| 64 | Mabel Deal | 44 | Wife | — | Illinois |
| 65 | David Peterson | 45 | Head | Salesman | Iowa |
| 66 | Esther Peterson | 43 | Wife | — | Nebraska |
| 67 | David Jr. Peterson | 12 | Son | — | Missouri |
| 68 | Oliver Casey | 33 | Head | Office Mgr. | Kentucky |
| 69 | Helen Casey | 20 | Wife | Clerk | Missouri |
| 70 | John Renner | 38 | Head | Sales | Missouri |
| 71 | Lucia Renner | 24 | Wife | — | Missouri |
| 72 | Raymond Evanko | 24 | Head | Clerk | Illinois |
| 73 | Mildred Evanko | 28 | Wife | Copyholder | Missouri |
| 74 | Albert Rilding | 26 | Head | Asst. Manager | Missouri |
| 75 | Dorothy Rilding | 22 | Wife | — | Missouri |
| 77 | Daniel Barry | 29 | Head | Police Officer | Missouri |
| 78 | Estelle Barry | 28 | Wife | — | Missouri |
| 79 | Leo Harrison Baldwin | 23 | Head | Fireman | Missouri |
| 80 | Marion Baldwin | 20 | Wife | — | 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)