RT
Ralph Thompson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Vigo-County, Indiana
Our Model Tree links this Ralph Thompson across the 1920, 1930 and 1940 US Censuses in Vigo-County, Indiana (XGBoost, ~Confirmed), with identified parents Clyde & Clyde — first a son (b.~1915), then head of a 4-person household.
Age 25
b. ~1915
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Vigo-County, Indiana |
| Surname | Thompson |
| Given Name | Ralph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Terre Haute |
| 1935 Residence (County) | Vigo |
| Additional Details | |
| Occupation | Laborer |
| Industry | Box Factory |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1200 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Laborer |
| Township / Ward | Terre Haute |
| 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ralph | Age | Birth yr |
|---|---|---|---|---|
| Clyde Thompson | Head | — | 48 | ~1892 |
| Lucille Thompson | Daughter | — | 19 | ~1921 |
| Ralph Thompson | Son | — | 25 | ~1915 |
| Elizabeth Thompson | Spouse | — | 46 | ~1894 |
Census Appearances
1920
Vigo, Indiana
Son, age 5
Vigo, Indiana · implied b. ~1915 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Ralph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Speaks English | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Vigo, Indiana
Son, age 15
Vigo, Indiana · implied b. ~1915 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Ralph A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Vigo-County, Indiana
Son, age 25
Vigo-County, Indiana · implied b. ~1915 — 4 household members
| Surname | Thompson |
| Given Name | Ralph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Terre Haute |
| 1935 Residence (County) | Vigo |
| Occupation | Laborer |
| Industry | Box Factory |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1200 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Ralph Thompson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Clyde Thompson (~0.92 confidence) and father Clyde Thompson (~0.92 confidence) and father Clyde Thompson (~0.92 confidence) and mother Elizabeth Thompson (~0.92 confidence) and mother Elizabeth Thompson (~0.92 confidence) and mother Elizabeth Thompson (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Clyde Thompson
b. ~1895
Source father
● Household
· direct · ~0.92
Father
Clyde Thompson
b. ~1892
Source father
● Household
· direct · ~0.92
Father
Clyde Thompson
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Elizabeth Thompson
b. ~1894
Source mother
● Household
· direct · ~0.92
Mother
Elizabeth Thompson
b. ~1895
Source mother
● Household
· direct · ~0.92
Mother
Elizabeth Thompson
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ralph Thompson
Son · 1940 · age 25 · b. ~1915 · Indiana
★ You are viewing this record
Sibling
Lucille Thompson
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 — Vigo-County, Indiana
Open full size
1940 US Federal Census — Vigo-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01104-00727)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Paul Poland | 7 | Son | — | Indiana |
| 2 | June Poland | 6 | Daughter | — | Indiana |
| 3 | Clyde Thompson | 48 | Head | Mechanic | Indiana |
| 4 | Elizabeth Thompson | 46 | Wife | — | Indiana |
| 5 | Ralph Thompson THIS PERSON | 25 | Son | Laborer | Indiana |
| 6 | Lucille Thompson | 19 | Daughter | — | Indiana |
| 7 | Jesse Lewis | 44 | Head | Laborer | Indiana |
| 8 | Lula Lewis | 37 | Wife | — | Indiana |
| 9 | Milton Lewis | 21 | Son | Laborer | Indiana |
| 10 | James Lewis | 17 | Son | Office | Indiana |
| 11 | Vera Lewis | 16 | Daughter | Office | Indiana |
| 12 | Florence Lewis | 14 | Daughter | — | Illinois |
| 13 | Betty R. Lewis | 11 | Daughter | — | Indiana |
| 14 | Robert Nussany | 24 | Head | Salesman | Indiana |
| 15 | Ruth Nussany | 21 | Wife | — | Illinois |
| 16 | Lloyd Williams | 25 | Head | Laborer | Illinois |
| 17 | Bernice Williams | 29 | Wife | — | Indiana |
| 18 | Lloyd D. Williams | 1 | Son | — | Indiana |
| 19 | Alice Turner | 61 | Head | — | Indiana |
| 20 | Harry Clancy | 61 | Head | Guard | New York |
| 21 | Katherine Clancy | 59 | Wife | — | Ohio |
| 22 | Margaret Clancy | 34 | Daughter | Saleslady | Indiana |
| 23 | William Toney | 48 | Head | Custodian | Indiana |
| 24 | Violet Toney | 40 | Wife | — | Indiana |
| 25 | Willa M. Toney | 18 | Daughter | Laborer | Indiana |
| 26 | Leo Toney | 16 | Son | — | Indiana |
| 27 | William E. Gray | 48 | Head | Foreman | Wisconsin |
| 28 | Mary E. Gray | 46 | Wife | — | Wisconsin |
| 29 | Mary K. Gray | 16 | Daughter | — | Indiana |
| 30 | Katherine Finnegan | 75 | Sister-in-law | — | Wisconsin |
| 31 | William Miller | 40 | Head | Laborer | Indiana |
| 32 | Joyce Miller | 40 | Wife | — | Indiana |
| 33 | Evelyn Miller | 18 | Daughter | — | Indiana |
| 34 | Robert Miller | 15 | Son | — | Indiana |
| 35 | Richard Miller | 10 | Son | — | Indiana |
| 36 | Irene Miller | 8 | Daughter | — | Indiana |
| 37 | Harry W. Capps | 41 | Head | Roofer | Illinois |
| 38 | Edith Capps | 36 | Wife | — | Indiana |
| 39 | Harry E. Capps | 19 | Son | Laborer | Indiana |
| 40 | Richard Capps | 18 | Son | Laborer | Indiana |
Pedigree Summary
Ralph + 1 sibling
Gen 1 · 6 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)