IL
Isaac Lewis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Richland-County, Montana
Our Model Tree links this Isaac Lewis across the 1920, 1930 and 1940 US Censuses in Richland-County, Montana (XGBoost, ~Confirmed), with identified parents Isaac & Chloe — first a head (b.~1897), then head of a 7-person household.
Age 43
b. ~1897
Male
Head
Born: Missouri
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Richland-County, Montana |
| Surname | Lewis |
| Given Name | Isaac E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | School District 4 Crane Township |
| 1935 Residence (County) | Richland |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Occupation | Farmer |
| Township / Ward | School District 4 Crane Township |
| Est. Birth Year | ~1897 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Isaac | Age | Birth yr |
|---|---|---|---|---|
| Isaac Lewis | Son | — | 12 | ~1928 |
| Jess Jenkins | Other | — | 65 | ~1875 |
| Isaac Lewis | Head | — | 43 | ~1897 |
| Lester Lewis | Son | — | 19 | ~1921 |
| Irene Lewis | Daughter | — | 17 | ~1923 |
| Gage Lewis | Daughter | — | 14 | ~1926 |
| Emma Lewis | Spouse | — | 43 | ~1897 |
Census Appearances
1920
Richland, Montana
Son, age 23
Richland, Montana · implied b. ~1897 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Isaac E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Occupation | Farm Laborer |
| Industry | Home Farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
Richland, Montana
Head, age 33
Richland, Montana · implied b. ~1897 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Isaac E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Missouri |
| Age at First Marriage | 23 |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Occupation | General farm |
| Industry | General farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | $1000 |
| Veteran | Yes WW |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
Richland-County, Montana
Head, age 43
Richland-County, Montana · implied b. ~1897 — 7 household members
| Surname | Lewis |
| Given Name | Isaac E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | School District 4 Crane Township |
| 1935 Residence (County) | Richland |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 Isaac Lewis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Isaac Lewis (~0.92 confidence) and mother Chloe Lewis (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Isaac Lewis
b. ~1865
Source father
● Household
· direct · ~0.92
Mother
Chloe Lewis
b. ~1863
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Isaac Lewis
Head · 1940 · age 43 · b. ~1897 · Montana
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Richland-County, Montana
Open full size
1940 US Federal Census — Richland-County, Montana
Page Contents
30 people indexed on this census page (nara:1940:m-t0627-02228-00236)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Homer A. Lewis | 40 | Head | Farmer | Missouri |
| 2 | Helen A. Lewis | 34 | Wife | — | Minnesota |
| 3 | Lloyd L. Lewis | 17 | Son | Mechanic | Montana |
| 4 | Virgil M. Lewis | 14 | Son | — | Oregon |
| 5 | Edith H. Lewis | 9 | Daughter | — | Montana |
| 6 | Eva G. Jenkins | 46 | Head | — | Missouri |
| 7 | Ernest L. Jenkins | 20 | Son | Farmer | Montana |
| 8 | Veda E. Jenkins | 17 | Daughter | House Work | Montana |
| 9 | Melba A. Jenkins | 15 | Daughter | — | Montana |
| 10 | Norman B. Jenkins | 5 | Son | — | Montana |
| 11 | John F. Hodge | 55 | Head | Carpenter | Missouri |
| 12 | Elsie C. Hodge | 55 | Wife | — | Missouri |
| 13 | Ruby T. Hodge | 16 | Daughter | — | Missouri |
| 14 | Edward L. Hodge | 19 | Son | Farmer | Missouri |
| 15 | Andy C. Cain | 70 | Head | Farmer | Missouri |
| 16 | Maggie J. Cain | 66 | Wife | — | Missouri |
| 17 | Ray H. Williams | 59 | Head | Farmer | Illinois |
| 18 | Albert B. Hora | 23 | Head | Farmer | Missouri |
| 19 | Virginia S. Hora | 20 | Wife | — | Montana |
| 20 | Janice A. Hora | 1 | Daughter | — | Montana |
| 21 | Le Roy S. Gibler | 47 | Head | Farmer | Iowa |
| 22 | Isaac E. Lewis THIS PERSON | 43 | Head | Farmer | Missouri |
| 23 | Emma E. Lewis | 43 | Wife | — | Iowa |
| 24 | Lester R. Lewis | 19 | Son | Farmer | Montana |
| 25 | Irene Z. Lewis | 17 | Daughter | — | Montana |
| 26 | Gage G. Lewis | 14 | Daughter | — | Montana |
| 27 | Isaac E. Jr. Lewis | 12 | Son | — | Montana |
| 28 | Jess O. Jenkins | 65 | Lodger | Plummer | Indiana |
| 29 | John Fehrs | 27 | Head | Farmer | Minnesota |
| 30 | Hazel M. Fehrs | 19 | Wife | Stenographer | Montana |
Pedigree Summary
Isaac
Gen 1 · 2 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)