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Thomas Welch — 1940 US Census Record
Model Tree available1940 United States Federal Census · Hamilton-County, Ohio
Our Model Tree links this Thomas Welch across the 1920, 1930 and 1940 US Censuses in Hamilton-County, Ohio (XGBoost, ~Confirmed), with identified parents Austin & Austin — first a son (b.~1919), then head of a 7-person household.
Age 21
b. ~1919
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Hamilton-County, Ohio |
| Surname | Welch |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Cincinnati |
| 1935 Residence (County) | Hamilton |
| Additional Details | |
| Occupation | Radio Drill Op. |
| Industry | Wholesale Drug |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 900 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Radio Drill Op. |
| Township / Ward | Cincinnati |
| Est. Birth Year | ~1919 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Margaret Welch | Spouse | — | 60 | ~1880 |
| Robert Welch | Son | — | 27 | ~1913 |
| Walter Welch | Son | — | 24 | ~1916 |
| Raymond Welch | Son | — | 32 | ~1908 |
| William Welch | Son | — | 19 | ~1921 |
| Thomas Welch | Son | — | 21 | ~1919 |
| Austin Welch | Head | — | 68 | ~1872 |
Census Appearances
1920
Hamilton, Ohio
Son, age 1
Hamilton, Ohio · implied b. ~1919 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Welch |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Hamilton, Ohio
Son, age 11
Hamilton, Ohio · implied b. ~1919 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Welch |
| Given Name | Thomas J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Hamilton-County, Ohio
Son, age 21
Hamilton-County, Ohio · implied b. ~1919 — 7 household members
| Surname | Welch |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Cincinnati |
| 1935 Residence (County) | Hamilton |
| Occupation | Radio Drill Op. |
| Industry | Wholesale Drug |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 900 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Thomas Welch across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Austin Welch (~0.92 confidence) and father Austin Welch (~0.92 confidence) and father Austin Welch (~0.92 confidence) and mother Margaret Welch (~0.92 confidence) and mother Margaret Welch (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Austin Welch
b. ~1873
Source father
● Household
· direct · ~0.92
Father
Austin Welch
b. ~1872
Source father
● Household
· direct · ~0.92
Father
Austin Welch
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Margaret Welch
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Margaret Welch
b. ~1880
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Welch
Son · 1940 · age 21 · b. ~1919 · Ohio
★ You are viewing this record
Sibling
Walter Welch
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Welch
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Raymond Welch
Sibling · 1940 · age 32
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Welch
Sibling · 1940 · age 19
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 — Hamilton-County, Ohio
Open full size
1940 US Federal Census — Hamilton-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03199-00543)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Louise Baur | 60 | Wife | — | Indiana |
| 2 | David Brehm | 72 | Head | Cooper | Ohio |
| 3 | Sophia Brehm | 70 | Wife | — | Ohio |
| 4 | Paul Wray | 44 | Son-in-law | Electrician | Ohio |
| 5 | Rose Wray | 43 | Daughter | — | Ohio |
| 6 | Richard Wray | 10 | Grandson | — | Ohio |
| 7 | Joseph Gerbers | 61 | Head | Supt. Gen. Mdse. | Ohio |
| 8 | Elizabeth Gerbers | 60 | Wife | — | Ohio |
| 9 | Catherine Gerbers | 31 | Daughter | — | Ohio |
| 10 | Martha Gerbers | 24 | Daughter | Gen Office Work | Ohio |
| 11 | George J. Hoffmann | 34 | Head | Draftsman | Ohio |
| 12 | Evelyn Hoffmann | 31 | Wife | — | Ohio |
| 13 | William Hoffmann | 8 | Son | — | Ohio |
| 14 | Ruth Hoffmann | 4 | Daughter | — | Ohio |
| 15 | George Buten | 53 | Head | Truck Driver | Ohio |
| 16 | Elizabeth Buten | 52 | Wife | — | Indiana |
| 17 | Richard Buten | 24 | Son | Inst. Salesman | Ohio |
| 18 | Giles Buten | 20 | Son | Distributor | Ohio |
| 19 | Charles Gedney | 54 | Lodger | Foreman | Indiana |
| 20 | Austin Welch | 68 | Head | Inspector | Ohio |
| 21 | Margaret Welch | 60 | Wife | — | Ohio |
| 22 | Raymond Welch | 32 | Son | Sub Mail Carrier | Ohio |
| 23 | Walter Welch | 24 | Son | City Office Clerk | Ohio |
| 24 | Robert Welch | 27 | Son | City Fire Fighter | Ohio |
| 25 | Thomas Welch THIS PERSON | 21 | Son | Radio Drill Op. | Ohio |
| 26 | William Welch | 19 | Son | — | Ohio |
| 27 | Fred Bickroge | 59 | Head | Truck Driver | Ohio |
| 28 | Lillian Bickroge | 53 | Wife | — | Ohio |
| 29 | Harold Bickroge | 27 | Head | Metal Worker | Ohio |
| 30 | Erma Bickroge | 27 | Wife | — | Ohio |
| 31 | Bruce Bickroge | 4 | Son | — | Ohio |
| 32 | Arthur C. Wessels | 31 | Head | Baker-Driver | Ohio |
| 33 | Florence Wessels | 30 | Wife | — | Ohio |
| 34 | Horace B. Parker | 30 | Head | Painting Cont. | Ohio |
| 35 | Edythe Parker | 33 | Wife | Stenographer | Ohio |
| 36 | Wm. E. Itzenberger | 52 | Head | Art Glass Work | Ohio |
| 37 | Josephine Itzenberger | 52 | Wife | — | Ohio |
| 38 | Clarence Giltz | 32 | Head | Salesman | Ohio |
| 39 | Helen Giltz | 30 | Wife | — | Illinois |
| 40 | Bobby Giltz | 4 | Son | — | Ohio |
Related Census Records
Pedigree Summary
Thomas + 4 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)