JW
Julia Williams — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Tripp-County, South Dakota
Our Model Tree links this Julia Williams across the 1920, 1930 and 1940 US Censuses in Tripp-County, South Dakota (XGBoost, ~Confirmed) — first a spouse (b.~1882), then head of a 3-person household.
Age 58
b. ~1882
Female
Spouse
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Tripp-County, South Dakota |
| Surname | Williams |
| Given Name | Julia |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Star Prairie Wortman Twp |
| 1935 Residence (County) | Tripp |
| Additional Details | |
| Hours Worked | 45 |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Star Prairie Wortman Twp |
| Est. Birth Year | ~1882 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Julia | Age | Birth yr |
|---|---|---|---|---|
| Frankie Williams | Daughter | — | 15 | ~1925 |
| F Williams | Head | — | 58 | ~1882 |
| Julia Williams | Spouse | — | 58 | ~1882 |
Census Appearances
1920
Tripp, South …
Other, age 37
Tripp, South Dakota · implied b. ~1883 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | William |
| Given Name | Julia |
| Relationship to Head | lodger |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Germany |
| Mother's Birthplace | New York |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Ger |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Tripp, South …
Other, age 48
Tripp, South Dakota · implied b. ~1882 — 50 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Julia |
| Relationship to Head | wife-H |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 30 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Germany |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Tripp-County, South …
Spouse, age 58
Tripp-County, South Dakota · implied b. ~1882 — 3 household members
| Surname | Williams |
| Given Name | Julia |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Star Prairie Wortman Twp |
| 1935 Residence (County) | Tripp |
| Hours Worked | 45 |
| Highest Grade | 7 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Julia Williams across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Julia Williams
Spouse · 1940 · age 58 · b. ~1882 · South Dakota
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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 — Tripp-County, South Dakota
Open full size
1940 US Federal Census — Tripp-County, South Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03868-00725)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Arla Steele | 0 | daughter | — | S Dak |
| 2 | Donald Steele | 29 | brother | Clerk | S Dak |
| 3 | Alvin J. Steele | 33 | Head | Proprietor | S Dak |
| 4 | Fern Steele | 22 | wife | — | S Dak |
| 5 | Cleo Mae Steele | 1 | daughter | — | S Dak |
| 6 | Robert Lee Steele | 0 | son | — | S Dak |
| 7 | Joseph A. Engelgau | 60 | Head | Proprietor | Michigan |
| 8 | J. B. Bergman | 61 | Head | Prop | Germany |
| 9 | Mary Bergman | 57 | wife | — | Missouri |
| 10 | Herbert Stoltenburg | 25 | Head | Trucker | S Dak |
| 11 | Lucy Stoltenburg | 25 | wife | — | S Dak |
| 12 | Ronald Stoltenburg | 2 | son | — | S Dak |
| 13 | F. S. Williams | 58 | Head | Farming | Nebr |
| 14 | Julia Williams THIS PERSON | 58 | wife | — | Iowa |
| 15 | Frankie Williams | 15 | daughter | — | S Dak |
| 16 | Anton Mauch | 36 | Head | Farming | S Dak |
| 17 | Bernice Mauch | 31 | wife | — | S Dak |
| 18 | Geraldine Mauch | 11 | daughter | — | S Dak |
| 19 | Raynard Mauch | 9 | son | — | S Dak |
| 20 | James Mauch | 5 | son | — | S Dak |
| 21 | Donald Mauch | 3 | son | — | S Dak |
| 22 | Marie Mauch | 1 | daughter | — | S Dak |
| 23 | Brother Thill | 31 | Brother | Laborer | S Dak |
| 24 | Cecil Mason | 41 | Head | Farming | Kansas |
| 25 | Minnie Mason | 44 | wife | — | Nebr |
| 26 | Urben Mason | 11 | son | — | S Dak |
| 27 | Mervin Mason | 8 | son | — | S Dak |
| 28 | Francis Mason | 4 | son | — | S Dak |
| 29 | James Sherkey | 33 | Head | Farming | S Dak |
| 30 | Emma Sherkey | 32 | wife | — | Nebr |
| 31 | Robert Sherkey | 8 | son | — | S Dak |
| 32 | Maxine Sherkey | 7 | daughter | — | S Dak |
| 33 | Eugene Sherkey | 6 | son | — | S Dak |
| 34 | Gloria Sherkey | 3 | daughter | — | S Dak |
| 35 | G. E. Crosby | 49 | Head | Farming | S Dak |
| 36 | Lydia Crosby | 47 | wife | — | S Dak |
| 37 | Edwin Crosby | 21 | son | Farming | S Dak |
| 38 | Charles Lutch | 44 | Head | Farming | Nebr |
| 39 | Myrtle Lutch | 29 | wife | — | Nebr |
| 40 | Julia Lutch | 9 | daughter | — | Nebr |
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)