JL
James Lewis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Duchesne-County, Utah
Our Model Tree links this James Lewis across the 1920, 1930 and 1940 US Censuses in Duchesne-County, Utah (XGBoost, ~Confirmed), with identified parents Willis & Willis — first a son (b.~1919), then head of a 4-person household.
Age 21
b. ~1919
Male
Son
Born: Utah
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Duchesne-County, Utah |
| Surname | Lewis |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Utah |
| 1935 Residence (City) | Roosevelt City |
| 1935 Residence (County) | Duchesne |
| Additional Details | |
| Occupation | Laborer |
| Industry | Building |
| Class of Worker | PW |
| Hours Worked | 2 |
| Income (1939) | 300 |
| Highest Grade | C-1 |
| 1935 Residence | Same house |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
| Occupation | Laborer |
| Township / Ward | Roosevelt City |
| 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 |
|---|---|---|---|---|
| Willis Lewis | Head | — | 67 | ~1873 |
| Guy Lewis | Son | — | 24 | ~1916 |
| James Lewis | Son | — | 21 | ~1919 |
| Eva Lewis | Spouse | — | 65 | ~1875 |
Census Appearances
1920
Duchesne, Utah
Son, age 1
Duchesne, Utah · implied b. ~1919 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | James W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Utah |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Iowa |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1930
Duchesne, Utah
Son, age 11
Duchesne, Utah · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | James W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Utah |
| Father's Birthplace | Minnesota |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1940
Duchesne-County, Utah
Son, age 21
Duchesne-County, Utah · implied b. ~1919 — 4 household members
| Surname | Lewis |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Utah |
| 1935 Residence (City) | Roosevelt City |
| 1935 Residence (County) | Duchesne |
| Occupation | Laborer |
| Industry | Building |
| Class of Worker | PW |
| Hours Worked | 2 |
| Income (1939) | 300 |
| Highest Grade | C-1 |
| 1935 Residence | Same house |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
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 Lewis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Willis Lewis (~0.92 confidence) and father Willis Lewis (~0.92 confidence) and mother Eva Lewis (~0.92 confidence) and mother Eva Lewis (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Willis Lewis
b. ~1878
Source father
● Household
· direct · ~0.92
Father
Willis Lewis
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Eva Lewis
b. ~1880
Source mother
● Household
· direct · ~0.92
Mother
Eva Lewis
b. ~1875
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Lewis
Son · 1940 · age 21 · b. ~1919 · Utah
★ You are viewing this record
Sibling
Guy Lewis
Sibling · 1940 · age 24
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 — Duchesne-County, Utah
Open full size
1940 US Federal Census — Duchesne-County, Utah
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04212-00534)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Helen Woger | 19 | Daughter | No | Utah |
| 2 | Frances Woger | 17 | Daughter | No | Utah |
| 3 | Flora Woger | 16 | Daughter | No | Utah |
| 4 | Lily Woger | 14 | Daughter | No | Utah |
| 5 | Wilma Woger | 13 | Daughter | — | Utah |
| 6 | Esther Woger | 11 | Daughter | — | Utah |
| 7 | William J. Reed | 42 | Head | Carpenter | Utah |
| 8 | Verley Reed | 23 | Wife | No | Utah |
| 9 | William Reed | 3 | Son | — | Utah |
| 10 | Gloria E. Reed | 2 | Daughter | — | Utah |
| 11 | Vera C. Reed | 0 | Daughter | — | Utah |
| 12 | Floyd H. Roberts | 29 | Head | Salesman | Utah |
| 13 | Olga Roberts | 26 | Wife | No | Nebraska |
| 14 | Richard Roberts | 5 | Son | — | Utah |
| 15 | Carl G. Davis | 34 | Head | County Agent | Utah |
| 16 | Elva Davis | 35 | Wife | No | Utah |
| 17 | Elva Joy Davis | 12 | Daughter | — | Utah |
| 18 | Glenn Davis | 9 | Son | — | Utah |
| 19 | Dorothy Davis | 5 | Daughter | — | Utah |
| 20 | Karen Davis | 3 | Daughter | — | Utah |
| 21 | Harry W. Larsen | 30 | Head | Truck Driver | Wyoming |
| 22 | Evelyn B. Larsen | 26 | Wife | No | Utah |
| 23 | Harry Larsen | 5 | Son | — | Utah |
| 24 | Lois Larsen | 4 | Daughter | — | Utah |
| 25 | Patricia Ann Larsen | 1 | Daughter | — | Utah |
| 26 | Marion Heller | 33 | Head | Miner | Ohio |
| 27 | Beth Heller | 30 | Wife | No | Nevada |
| 28 | Mary Ann Heller | 10 | Daughter | — | Utah |
| 29 | Bernice Heller | 6 | Daughter | — | Utah |
| 30 | Herbert Barlow | 46 | Head | Salesman | Utah |
| 31 | Thelma Barlow | 37 | Wife | No | Utah |
| 32 | Harry A. Sprouse | 38 | Head | Truck Driver | Colorado |
| 33 | Helen J. Sprouse | 33 | Wife | No | Colorado |
| 34 | Harold Sprouse | 16 | Son | No | Utah |
| 35 | Don Sprouse | 12 | Son | — | Utah |
| 36 | Betty Jo Sprouse | 10 | Daughter | — | Utah |
| 37 | Willis C. Lewis | 67 | Head | No | Minnesota |
| 38 | Eva J. Lewis | 65 | Wife | Landlady | Iowa |
| 39 | Guy Lewis | 24 | Son | Student | Utah |
| 40 | James Lewis THIS PERSON | 21 | Son | Laborer | Utah |
Pedigree Summary
James + 1 sibling
Gen 1 · 4 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)