JW
James Williamson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Tippecanoe-County, Indiana
Our Model Tree links this James Williamson across the 1920, 1930 and 1940 US Censuses in Tippecanoe-County, Indiana (XGBoost, ~Confirmed), with identified parents Robert & R — first a son (b.~1919), then head of a 4-person household.
Age 21
b. ~1919
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Tippecanoe-County, Indiana |
| Surname | Williamson |
| Given Name | James A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Shelby Twp. |
| 1935 Residence (County) | Tippecanoe |
| Additional Details | |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 6 |
| Income (1939) | 120 |
| Highest Grade | Yes C-3 |
| 1935 Residence | Same house |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Laborer |
| Township / Ward | Shelby Twp |
| 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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Eva Williamson | Daughter | — | 18 | ~1922 |
| Robert Williamson | Head | — | 55 | ~1885 |
| James Williamson | Son | — | 21 | ~1919 |
| Loretta Williamson | Spouse | — | 51 | ~1889 |
Census Appearances
1920
Tippecanoe, Indiana
Son, age 1
Tippecanoe, Indiana · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williamson |
| Given Name | James L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Tippecanoe, Indiana
Son, age 11
Tippecanoe, Indiana · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williamson |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Tippecanoe-County, Indiana
Son, age 21
Tippecanoe-County, Indiana · implied b. ~1919 — 4 household members
| Surname | Williamson |
| Given Name | James A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Shelby Twp. |
| 1935 Residence (County) | Tippecanoe |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 6 |
| Income (1939) | 120 |
| Highest Grade | Yes C-3 |
| 1935 Residence | Same house |
| 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 James Williamson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Robert Williamson (~0.92 confidence) and father R Williamson (~0.92 confidence) and mother Loretta Williamson (~0.92 confidence) and mother Martha Williamson (~0.92 confidence) and mother Minnie Williamson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Robert Williamson
b. ~1885
Source father
● Household
· direct · ~0.92
Father
R Williamson
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Loretta Williamson
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Martha Williamson
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Minnie Williamson
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Williamson
Son · 1940 · age 21 · b. ~1919 · Indiana
★ You are viewing this record
Sibling
Eva Williamson
Sibling · 1940 · age 18
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 — Tippecanoe-County, Indiana
Open full size
1940 US Federal Census — Tippecanoe-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01099-00213)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Aaron M. Smith | 77 | Head | — | Indiana |
| 2 | Anna Q. Smith | 44 | Daughter | Housekeeper | Indiana |
| 3 | Clint Q. Horner | 44 | Head | Farmer | Indiana |
| 4 | Ella Horner | 46 | Wife | — | Indiana |
| 5 | Philip Horner | 23 | Son | Laborer | Indiana |
| 6 | Wilma Horner | 16 | Daughter | — | Indiana |
| 7 | Jo Ann Horner | 8 | Daughter | — | Indiana |
| 8 | Kenneth Q. Roose | 23 | Head | Farmer | Indiana |
| 9 | Hortense Roose | 65 | Mother | — | Holland |
| 10 | Harry Roose | 41 | Brother | Hod Carrier | Indiana |
| 11 | Pearl Roose | 26 | Sister | House Work | Indiana |
| 12 | Robert Eller | 26 | Head | Laborer | Indiana |
| 13 | Gladys Q. Eller | 22 | Wife | — | Indiana |
| 14 | Frank Horner | 21 | Head | Laborer | Indiana |
| 15 | Virginia Q. Horner | 18 | Wife | — | Indiana |
| 16 | Vincent Q. Pearl | 34 | Head | Farmer | Indiana |
| 17 | Cecelia Pearl | 34 | Wife | — | Indiana |
| 18 | Francis Pearl | 6 | Son | — | Indiana |
| 19 | Doris Pearl | 4 | Daughter | — | Indiana |
| 20 | John Pearl | 3 | Son | — | Indiana |
| 21 | Lucian Halsema | 38 | Brother-in-law | Laborer | Indiana |
| 22 | Robert Q. Williamson | 55 | Head | Farmer | Indiana |
| 23 | Loretta Williamson | 51 | Wife | — | Indiana |
| 24 | James A. Williamson THIS PERSON | 21 | Son | Laborer | Indiana |
| 25 | Eva A. Williamson | 18 | Daughter | Laborer | Indiana |
| 26 | Hugh Q. Sniffen | 43 | Head | Farmer | Illinois |
| 27 | Vera Sniffen | 34 | Wife | — | Illinois |
| 28 | Marjorie Sniffen | 15 | Daughter | — | Indiana |
| 29 | Wallace Sniffen | 13 | Son | — | Indiana |
| 30 | Dona Sniffen | 10 | Daughter | — | Indiana |
| 31 | Albert Q. Albright | 51 | Head | Farmer | Indiana |
| 32 | Emma Albright | 48 | Wife | — | Indiana |
| 33 | Helen Albright | 19 | Daughter | Accountant | Indiana |
| 34 | Evelyn Albright | 16 | Daughter | — | Indiana |
| 35 | Kathryn Albright | 14 | Daughter | — | Indiana |
| 36 | Frank Q. Mills | 45 | Head | Farmer | Indiana |
| 37 | Ellen Mills | 58 | Wife | — | Indiana |
| 38 | Harvey Snyder | 19 | Hired Hand | Laborer | Indiana |
| 39 | Ernest Best | 43 | Head | Farmer | Indiana |
| 40 | Rosabella Best | 35 | Wife | — | Indiana |
Pedigree Summary
James + 1 sibling
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)