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Robert Welch — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Louis-City-County, Missouri
Our Model Tree links this Robert Welch across the 1930 and 1940 US Censuses in St.-Louis-City-County, Missouri (XGBoost, ~Confirmed) — first a son (b.~1930), then head of a 12-person household.
Age 10
b. ~1930
Male
Son
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-City-County, Missouri |
| Surname | Welch |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | St. Louis City |
| 1935 Residence (County) | St. Louis City |
| Additional Details | |
| Highest Grade | No 3 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | St Louis City |
| Est. Birth Year | ~1930 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Welch | Son | — | 10 | ~1930 |
| Marcella Welch | Daughter | — | 18 | ~1922 |
| Leo Welch | Son | — | 16 | ~1924 |
| Claire Welch | Daughter | — | 14 | ~1926 |
| John Welch | Son | — | 24 | ~1916 |
| Joseph Welch | Head | — | 51 | ~1889 |
| Annetta Welch | Spouse | — | 50 | ~1890 |
| Marie Welch | Daughter | — | 30 | ~1910 |
| Margaret Welch | Daughter | — | 20 | ~1920 |
| Danny Welch | Son | — | 11 | ~1929 |
| Joseph Welch | Son | — | 26 | ~1914 |
| Loretta Welch | Daughter | — | 28 | ~1912 |
Census Appearances
1930
St Louis, …
Son, age 1
St Louis, Missouri · implied b. ~1929 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Welch |
| Given Name | Robert |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Missouri |
| Occupation | none |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
St.-Louis-City-County, Missouri
Son, age 10
St.-Louis-City-County, Missouri · implied b. ~1930 — 12 household members
| Surname | Welch |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | St. Louis City |
| 1935 Residence (County) | St. Louis City |
| Highest Grade | No 3 |
| 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 Robert Welch across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Welch
Son · 1940 · age 10 · b. ~1930 · Missouri
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Sibling
Claire Welch
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marcella Welch
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Welch
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Welch
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Welch
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Loretta Welch
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Danny Welch
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marie Welch
Sibling · 1940 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leo Welch
Sibling · 1940 · age 16
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-t0627-02197-00602)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph B Welch | 51 | Head | Painter | Missouri |
| 2 | Annetta Welch | 50 | Wife | — | Missouri |
| 3 | Marie Welch | 30 | Daughter | Clerk | Missouri |
| 4 | Loretta Welch | 28 | Daughter | Clerk | Missouri |
| 5 | Joseph Jr Welch | 26 | Son | Clerk | Missouri |
| 6 | John Welch | 24 | Son | Bell Boy | Missouri |
| 7 | Margaret Welch | 20 | Daughter | — | Missouri |
| 8 | Marcella Welch | 18 | Daughter | — | Missouri |
| 9 | Leo Welch | 16 | Son | — | Missouri |
| 10 | Claire Welch | 14 | Daughter | — | Missouri |
| 11 | Danny Welch | 11 | Son | — | Missouri |
| 12 | Robert Welch THIS PERSON | 10 | Son | — | Missouri |
| 13 | Mckinley Stephens | 44 | Head | Shoe Man | Tennessee |
| 14 | Adell Stephens | 31 | Wife | Clerk | Tennessee |
| 15 | Anna Royaschnik | 49 | Head | — | Austria |
| 16 | Katherine Royaschnik | 19 | Daughter | Waitress | Missouri |
| 17 | John Henry Beck | 37 | Son in law | Baker | Illinois |
| 18 | Anna Beck | 28 | Daughter | — | Missouri |
| 19 | Virginia Beck | 12 | Granddaughter | — | Missouri |
| 20 | Eleanor Royaschnik | 8 | Granddaughter | — | Missouri |
| 21 | Jacob H Schuster | 54 | Head | Barber | Missouri |
| 22 | Jessie Irene Schuster | 57 | Wife | — | Illinois |
| 23 | Gladys Tuttle | 32 | Boarder | Beauty Operator | Missouri |
| 24 | Mary Catherine Tuttle | 14 | Boarder | — | Illinois |
| 25 | Christ L Petros | 62 | Head | Partner | Greece |
| 26 | William Petros | 52 | Brother | Partner | Greece |
| 27 | Clarence Cotner | 34 | Head | Cutter | Missouri |
| 28 | Gertrude Cotner | 34 | Wife | — | Missouri |
| 29 | June Cotner | 13 | Daughter | — | Missouri |
| 30 | Lorraine Cotner | 12 | Daughter | — | Missouri |
| 31 | Verna Gregory | 38 | Sister | Clerical | Missouri |
| 32 | John Wabousky | 35 | Head | Laborer | Missouri |
| 33 | Margaret Wabousky | 33 | Wife | — | Missouri |
| 34 | Milton Wabousky | 5 | Son | — | Missouri |
| 35 | Rosalinn Wabousky | 3 | Daughter | — | Missouri |
| 36 | James Wabousky | 1 | Son | — | Missouri |
| 37 | Glenn Evans | 47 | Head | Owner | Indiana |
| 38 | Maude Evans | 40 | Wife | — | Missouri |
| 39 | Blaine Evans | 9 | Son | — | Missouri |
| 40 | Glenda Evans | 2 | 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)