OJ
Otto Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Ward-County, North Dakota
Our Model Tree links this Otto Johnson across the 1910, 1920, 1930 and 1940 US Censuses in Ward-County, North Dakota (XGBoost, ~Confirmed) — first a head (b.~1877), then head of a 4-person household.
Age 63
b. ~1877
Male
Head
Born: Minnesota
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Ward-County, North Dakota |
| Surname | Johnson |
| Given Name | Otto O. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 63 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Carpio Township |
| 1935 Residence (County) | Ward |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 52 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
| Occupation | Farmer |
| Township / Ward | Carpio Township |
| Est. Birth Year | ~1877 |
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 Otto | Age | Birth yr |
|---|---|---|---|---|
| Otto Johnson | Head | — | 63 | ~1877 |
| Mae Johnson | Daughter | — | 15 | ~1925 |
| Kenneth Johnson | Son | — | 21 | ~1919 |
| Aline Johnson | Spouse | — | 55 | ~1885 |
Census Appearances
1910
Ward, North …
Head, age 33
Ward, North Dakota · implied b. ~1877 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Otto O. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Years Married | 3 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Farmer |
| Industry | General Farm |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1920
Ward, North …
Head, age 44
Ward, North Dakota · implied b. ~1876 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Otto O. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Wisconsin |
| Occupation | Farmer |
| Industry | General farm |
| Class of Worker | Emp |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1930
Ward, North …
Head, age 53
Ward, North Dakota · implied b. ~1877 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Otto O |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Minnesota |
| Age at First Marriage | 31 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Farmer |
| Industry | General Farming |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Veteran | No |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
1940
Ward-County, North …
Head, age 63
Ward-County, North Dakota · implied b. ~1877 — 4 household members
| Surname | Johnson |
| Given Name | Otto O. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 63 |
| Marital Status | Married |
| Birthplace | Minnesota |
| 1935 Residence (City) | Carpio Township |
| 1935 Residence (County) | Ward |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 52 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Minnesota |
| Birth Country | United States |
| Birthplace (normalized) | minnesota |
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 Otto Johnson across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Otto Johnson
Head · 1940 · age 63 · b. ~1877 · North Dakota
★ 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 — Ward-County, North Dakota
Open full size
1940 US Federal Census — Ward-County, North Dakota
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03017-00097)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Christ O. Morgard | 74 | Head | — | Wisconsin |
| 2 | Conard Morgard | 22 | Son | Farming | North Dakota |
| 3 | Grace Morgard | 16 | Daughter | — | North Dakota |
| 4 | Selmer Morgard | 14 | Son | — | North Dakota |
| 5 | Milo Lee | 45 | Head | Farmer | Wisconsin |
| 6 | Clara Lee | 35 | Wife | — | North Dakota |
| 7 | Virgil Lee | 12 | Son | — | North Dakota |
| 8 | Delores Lee | 11 | Daughter | — | North Dakota |
| 9 | Cyril Lee | 9 | Son | — | North Dakota |
| 10 | Otto O. Johnson THIS PERSON | 63 | Head | Farmer | Minnesota |
| 11 | Aline Johnson | 55 | Wife | — | North Dakota |
| 12 | Kenneth Johnson | 21 | Son | Labor | North Dakota |
| 13 | Mae Johnson | 15 | Daughter | — | North Dakota |
| 14 | Helg Ronnigan | 70 | Head | — | Norway |
| 15 | Anna Ronnigan | 71 | Wife | — | Norway |
| 16 | Theodore Butterfield | 30 | Head | Farmer | North Dakota |
| 17 | Lorane Butterfield | 16 | Sister | — | North Dakota |
| 18 | Lawrence Butterfield | 35 | Brother | Labor | North Dakota |
| 19 | Janis Butterfield | 29 | Sister-in-law | — | North Dakota |
| 20 | George Butterfield | 6 | Nephew | — | North Dakota |
| 21 | Charles Butterfield | 4 | Nephew | — | North Dakota |
| 22 | Myrtle Butterfield | 2 | Niece | — | North Dakota |
| 23 | Emily Hanson | 57 | Head | — | North Dakota |
| 24 | Inger Hanson | 79 | Aunt | — | Norway |
| 25 | Andrew Vangen | 60 | Head | Farm | Norway |
| 26 | Anna Vangen | 58 | Wife | — | Norway |
| 27 | Alice Vangen | 27 | Daughter | Teacher | North Dakota |
| 28 | Arthur Vangen | 22 | Son | Labor | North Dakota |
| 29 | Martin Vangen | 19 | Son | — | North Dakota |
| 30 | Elmer Vangen | 18 | Son | Farm | North Dakota |
| 31 | Glen Vangen | 17 | Son | — | North Dakota |
| 32 | Mable Vangen | 15 | Daughter | — | North Dakota |
| 33 | Esther Vangen | 12 | Daughter | — | North Dakota |
| 34 | Verna Vangen | 10 | Daughter | — | North Dakota |
| 35 | Frank Sialy | 63 | Head | Farm | Wisconsin |
| 36 | Florence Sialy | 63 | Wife | — | Minnesota |
| 37 | Andrew Johnson | 70 | Head | Farmer | Iowa |
| 38 | Mary Johnson | 63 | Wife | — | Iowa |
| 39 | Mildred Johnson | 40 | Daughter | — | North Dakota |
| 40 | Eurnice Johnson | 38 | Son | Farm | North Dakota |
Related Census Records
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)