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Roger Williams — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Carter-County, Montana
Our Model Tree links this Roger Williams across the 1930 and 1940 US Censuses in Carter-County, Montana (XGBoost, ~Confirmed) — first a son (b.~1920), then head of a 12-person household.
Age 20
b. ~1920
Male
Son
Born: Montana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Carter-County, Montana |
| Surname | Williams |
| Given Name | Roger |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Montana |
| 1935 Residence (City) | School district 16 |
| 1935 Residence (County) | Carter |
| Additional Details | |
| Occupation | rancher |
| Industry | ranch |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
| Occupation | Rancher |
| Township / Ward | School District 16 |
| Est. Birth Year | ~1920 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Roger | Age | Birth yr |
|---|---|---|---|---|
| Henry Williams | Son | — | 17 | ~1923 |
| Annie Williams | Head | — | 45 | ~1895 |
| Isabel Williams | Daughter | — | 21 | ~1919 |
| Betty Williams | Daughter | — | 11 | ~1929 |
| Helen Williams | Daughter | — | 8 | ~1932 |
| Annie Williams | Daughter | — | 15 | ~1925 |
| Roger Williams | Son | — | 20 | ~1920 |
| Alva Schnee | Other | — | 45 | ~1895 |
| Emily Williams | Daughter | — | 7 | ~1933 |
| Iris Williams | Daughter | — | 14 | ~1926 |
| Ira Williams | Son | — | 18 | ~1922 |
| Ben Williams | Son | — | 13 | ~1927 |
Census Appearances
1930
Carter, Montana
Son, age 10
Carter, Montana · implied b. ~1920 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Roger |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Montana |
| Father's Birthplace | South Dakota |
| Mother's Birthplace | Wyoming |
| Can Read/Write | Yes |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1940
Carter-County, Montana
Son, age 20
Carter-County, Montana · implied b. ~1920 — 12 household members
| Surname | Williams |
| Given Name | Roger |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Montana |
| 1935 Residence (City) | School district 16 |
| 1935 Residence (County) | Carter |
| Occupation | rancher |
| Industry | ranch |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
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 Roger Williams across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Roger Williams
Son · 1940 · age 20 · b. ~1920 · Montana
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Sibling
Helen Williams
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Williams
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Isabel Williams
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Henry Williams
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ben Williams
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ira Williams
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Iris Williams
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Emily Williams
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Annie Williams
Sibling · 1940 · age 15
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 — Carter-County, Montana
Open full size
1940 US Federal Census — Carter-County, Montana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02213-00554)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joe Cunningham | 43 | Head | Rancher | Ireland |
| 2 | Idell Cunningham | 43 | Wife | — | Wyoming |
| 3 | Pat Cunningham | 18 | Son | Rancher | Montana |
| 4 | Grace Cunningham | 15 | Daughter | — | Montana |
| 5 | Alice Cunningham | 9 | Daughter | — | Montana |
| 6 | Charley H. Johnston | 43 | Head | Rancher | Montana |
| 7 | Gus Rader | 62 | Hired man | Rancher | Nebraska |
| 8 | Ray L. Mitchell | 32 | Hired man | Hired Man | Texas |
| 9 | Goldie A. Mitchell | 33 | Hired girl | — | South Dakota |
| 10 | Marvin Mitchell | 14 | Hired man | Hired Man | South Dakota |
| 11 | Annie Williams | 45 | Head | — | Wyoming |
| 12 | Isabel Williams | 21 | Daughter | — | Montana |
| 13 | Roger Williams THIS PERSON | 20 | Son | Rancher | Montana |
| 14 | Ira Williams | 18 | Son | Rancher | Montana |
| 15 | Henry Williams | 17 | Son | Rancher | Montana |
| 16 | Annie Williams | 15 | Daughter | — | Montana |
| 17 | Iris Williams | 14 | Daughter | — | Montana |
| 18 | Ben Williams | 13 | Son | — | Montana |
| 19 | Betty Williams | 11 | Daughter | — | Montana |
| 20 | Helen Williams | 8 | Daughter | — | Wyoming |
| 21 | Emily Williams | 7 | Daughter | — | Montana |
| 22 | Alva Schnee | 45 | Hired man | Farm Hand | South Dakota |
| 23 | James J. Kester | 71 | Head | Rancher | New York |
| 24 | Josephine Lange | 52 | Housekeeper | Housekeeper | South Dakota |
| 25 | William M. Berg | 67 | Head | — | Minnesota |
| 26 | Joseph Johnston | 42 | Head | Rancher | Montana |
| 27 | Edith Johnston | 34 | Wife | — | Montana |
| 28 | Harold J. Johnston | 5 | Son | — | Montana |
| 29 | Stanley J. Johnston | 1 | Son | — | South Dakota |
| 30 | Willard Johnston | 0 | Son | — | Montana |
| 31 | Hans Jacobsen | 51 | Head | Rancher | Denmark |
| 32 | Wanda Jacobsen | 34 | Wife | — | South Dakota |
| 33 | Walter Soderlund | 56 | Head | Rancher | Sweden |
| 34 | Astrid Soderlund | 56 | Wife | — | South Dakota |
| 35 | Eva Soderlund | 24 | Daughter | Rancher | South Dakota |
| 36 | Walter Smith | 42 | Hired man | Rancher | South Dakota |
| 37 | Jens Jacobsen | 53 | Head | Rancher | Denmark |
| 38 | Roxie Jacobsen | 50 | Wife | — | South Dakota |
| 39 | Irene Jacobsen | 9 | Daughter | — | Montana |
| 40 | Gladys Watkins | 17 | Daughter | — | Montana |
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)