BJ
Bertha Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Sheridan-County, Montana
Our Model Tree links this Bertha Johnson across the 1920, 1930 and 1940 US Censuses in Sheridan-County, Montana (XGBoost, ~Confirmed) — first a head (b.~1876), then head of a 3-person household.
Age 64
b. ~1876
Female
Head
Born: Iowa
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Sheridan-County, Montana |
| Surname | Johnson |
| Given Name | Bertha |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 64 |
| Marital Status | Widowed |
| Birthplace | Iowa |
| 1935 Residence (City) | School District 43 |
| 1935 Residence (County) | Sheridan |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 52 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farmer |
| Township / Ward | School District 43 |
| Est. Birth Year | ~1876 |
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 Bertha | Age | Birth yr |
|---|---|---|---|---|
| Bertha Johnson | Head | — | 64 | ~1876 |
| Lester Johnson | Son | — | 33 | ~1907 |
| Willa Johnson | Son | — | 24 | ~1916 |
Census Appearances
1920
Sheridan, Montana
Spouse, age 44
Sheridan, Montana · implied b. ~1876 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Sheridan, Montana
Other, age 54
Sheridan, Montana · implied b. ~1876 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Bertha |
| Relationship to Head | Head-H |
| Sex | F |
| Color / Race | White |
| Age | 54 |
| Marital Status | Widowed |
| Birthplace | Iowa |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Veteran | No |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Sheridan-County, Montana
Head, age 64
Sheridan-County, Montana · implied b. ~1876 — 3 household members
| Surname | Johnson |
| Given Name | Bertha |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 64 |
| Marital Status | Widowed |
| Birthplace | Iowa |
| 1935 Residence (City) | School District 43 |
| 1935 Residence (County) | Sheridan |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 52 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| 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 Bertha Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Bertha Johnson
Head · 1940 · age 64 · b. ~1876 · 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 — Sheridan-County, Montana
Open full size
1940 US Federal Census — Sheridan-County, Montana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02229-00507)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Rosella Corcoran | 10 | Daughter | — | Montana |
| 42 | Roy D. Vincent | 24 | Head | Farmer | Montana |
| 43 | Libbie Vincent | 52 | Mother | — | Sweden |
| 44 | Vincent Vincent | 17 | Brother | Farm Laborer | Montana |
| 45 | Arthur Vincent | 19 | Brother | Farm Laborer | Montana |
| 46 | Irene Vincent | 15 | Sister | — | Montana |
| 47 | Arthur D. Henalan | 50 | Head | Farmer | Illinois |
| 48 | Anna Henalan | 51 | Wife | — | Wisconsin |
| 49 | Doris Henalan | 18 | Daughter | — | Montana |
| 50 | Wilbur Henalan | 14 | Son | — | Montana |
| 51 | Evelyn Henalan | 9 | Daughter | — | Montana |
| 52 | Robert D. Mangel | 65 | Head | Farmer | Illinois |
| 53 | Helga Mangel | 46 | Wife | — | Norway |
| 54 | Harvey Mangel | 36 | Son | Farmer | Minnesota |
| 55 | Javis Mangel | 19 | Son | — | Minnesota |
| 56 | Jordis Mildred Mangel | 17 | Daughter | — | Montana |
| 57 | Charles Mangel | 10 | Son | — | Montana |
| 58 | Clarice Mangel | 8 | Daughter | — | Montana |
| 59 | Bertha Johnson THIS PERSON | 64 | Head | Farmer | Iowa |
| 60 | Lester C. Johnson | 33 | Son | Farm Laborer | North Dakota |
| 61 | Willa A. Johnson | 24 | Son | Farmer | Montana |
| 62 | Chris Olson | 53 | Head | Farmer | Norway |
| 63 | Inga Olson | 54 | Wife | — | Norway |
| 64 | Elsie Olson | 18 | Daughter | — | Montana |
| 65 | Eunice Olson | 16 | Daughter | — | Montana |
| 66 | Chester Olson | 11 | Son | — | Montana |
| 67 | Eldred D. Gortzinger | 29 | Head | Farmer | North Dakota |
| 68 | Lucille Gortzinger | 27 | Wife | — | Minnesota |
| 69 | Marilyn Gortzinger | 2 | Daughter | — | Montana |
| 70 | Chester Gortzinger | 0 | Son | — | Montana |
| 71 | Sven Soderquist | 45 | Head | Farmer | Sweden |
| 72 | Clara Soderquist | 35 | Wife | — | North Dakota |
| 73 | Adeline Soderquist | 12 | Daughter | — | Montana |
| 74 | Lorraine Soderquist | 10 | Daughter | — | Montana |
| 75 | Dale Soderquist | 7 | Son | — | Montana |
| 76 | May Soderquist | 2 | Daughter | — | Montana |
| 77 | Sharon Kay Soderquist | 0 | Daughter | — | Montana |
| 78 | Helmer B. Lee | 31 | Head | Farmer | South Dakota |
| 79 | Henry Lee | 24 | Brother | Farmer | Montana |
| 80 | Clarence A. Pierson | 34 | Head | Farmer | Minnesota |
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)