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Thomas Welch — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Monroe-County, Wisconsin
Our Model Tree links this Thomas Welch across the 1930 and 1940 US Censuses in Monroe-County, Wisconsin (XGBoost, ~Confirmed) — first a head (b.~1901), then head of a 12-person household.
Age 39
b. ~1901
Male
Head
Born: Wisconsin
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Monroe-County, Wisconsin |
| Surname | Welch |
| Given Name | Thomas J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Tomah |
| 1935 Residence (County) | Monroe |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 50 |
| Income (1939) | 0 |
| Highest Grade | G 8 |
| 1935 Residence | Wisconsin |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Occupation | Farmer |
| Township / Ward | Lincoln Township |
| Est. Birth Year | ~1901 |
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 Thomas | Age | Birth yr |
|---|---|---|---|---|
| Vivian Welch | Daughter | — | 11 | ~1929 |
| Martha Welch | Daughter | — | ~1940 | |
| Helen Welch | Daughter | — | 12 | ~1928 |
| Norman Welch | Son | — | 4 | ~1936 |
| Patricia Welch | Daughter | — | 9 | ~1931 |
| Thomas Welch | Head | — | 39 | ~1901 |
| Roland Welch | Son | — | 6 | ~1934 |
| Sophia Welch | Spouse | — | 35 | ~1905 |
| Alice Welch | Daughter | — | 14 | ~1926 |
| Eugene Welch | Son | — | 5 | ~1935 |
| Shirley Welch | Daughter | — | 1 | ~1939 |
| Howard Welch | Son | — | 7 | ~1933 |
Census Appearances
1930
Monroe, Wisconsin
Head, age 30
Monroe, Wisconsin · implied b. ~1900 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Welch |
| Given Name | Thomas J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| Age at First Marriage | 25 |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Wisconsin |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Monroe-County, Wisconsin
Head, age 39
Monroe-County, Wisconsin · implied b. ~1901 — 12 household members
| Surname | Welch |
| Given Name | Thomas J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Tomah |
| 1935 Residence (County) | Monroe |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 50 |
| Income (1939) | 0 |
| Highest Grade | G 8 |
| 1935 Residence | Wisconsin |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Thomas Welch
Head · 1940 · age 39 · b. ~1901 · Wisconsin
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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 — Monroe-County, Wisconsin
Open full size
1940 US Federal Census — Monroe-County, Wisconsin
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04505-00286)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Virginia Pedersen | 14 | daughter | — | Wisconsin |
| 2 | Frances Pedersen | 10 | daughter | — | Wisconsin |
| 3 | Milton Pedersen | 5 | son | — | Wisconsin |
| 4 | B. Franklin Gove | 60 | Head | Laborer | Illinois |
| 5 | Hattie K. Gove | 40 | Wife | — | Illinois |
| 6 | George D. Gove | 15 | Son | Laborer | Illinois |
| 7 | Bertha Sorensen | 73 | Mother-in-law | — | Denmark |
| 8 | Laurity Lawson | 34 | Head | Laborer | Illinois |
| 9 | Lillia M. Lawson | 26 | Wife | — | Wisconsin |
| 10 | John Lawson | 4 | Son | — | Wisconsin |
| 11 | Elsie Lawson | 3 | daughter | — | Wisconsin |
| 12 | Leroy Lawson | 0 | Son | — | Wisconsin |
| 13 | Ed. E. Finnegan | 61 | Head | Farmer | Wisconsin |
| 14 | Etta Finnegan | 53 | Wife | — | Wisconsin |
| 15 | Harry Griffin | 29 | Head | Farmer | Wisconsin |
| 16 | Edith Griffin | 23 | Wife | — | Wisconsin |
| 17 | Doris Butterfuss | 14 | Step-daughter | — | Wisconsin |
| 18 | Thomas J. Welch THIS PERSON | 39 | Head | Farmer | Wisconsin |
| 19 | Sophia Welch | 35 | Wife | — | Wisconsin |
| 20 | Alice Welch | 14 | daughter | — | Wisconsin |
| 21 | Helen Welch | 12 | daughter | — | Wisconsin |
| 22 | Vivian Welch | 11 | daughter | — | Wisconsin |
| 23 | Patricia Welch | 9 | daughter | — | Wisconsin |
| 24 | Howard Welch | 7 | Son | — | Wisconsin |
| 25 | Roland Welch | 6 | Son | — | Wisconsin |
| 26 | Eugene Welch | 5 | Son | — | Wisconsin |
| 27 | Norman Welch | 4 | Son | — | Wisconsin |
| 28 | Shirley Welch | 1 | daughter | — | Wisconsin |
| 29 | Martha Welch | 0 | daughter | — | Wisconsin |
| 30 | Marius Lawson | 28 | Head | Farmer | Denmark |
| 31 | Pearl J. Lawson | 57 | Wife | — | Wisconsin |
| 32 | Christine Lawson | 82 | Mother | — | Denmark |
| 33 | Earl Mccollough | 50 | Head | Farmer | Wisconsin |
| 34 | Ida Mccollough | 51 | Wife | — | Wisconsin |
| 35 | Charles Mccollough | 18 | Son | Laborer | Wisconsin |
| 36 | Jeanette Mccollough | 13 | daughter | — | Wisconsin |
| 37 | Robert Mccollough | 10 | Son | — | Wisconsin |
| 38 | Carl Jensen | 51 | Head | Farmer | Wisconsin |
| 39 | Edward Nordstrum | 41 | Hired man | Laborer | Sweden |
| 40 | Chris Pedersen | 30 | Head | Farmer | Wisconsin |
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)