OJ
Ole Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Worth-County, Iowa
Our Model Tree links this Ole Johnson across the 1920, 1930 and 1940 US Censuses in Worth-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1898), then head of a 8-person household.
Age 42
b. ~1898
Male
Head
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Worth-County, Iowa |
| Surname | Johnson |
| Given Name | Ole A. |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Kensett twp. |
| 1935 Residence (County) | Worth |
| Additional Details | |
| Occupation | farmer |
| Industry | farm |
| Class of Worker | OA |
| Hours Worked | 70 |
| Income (1939) | 0 |
| Highest Grade | S 7 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Farmer |
| Township / Ward | Kensett Twp |
| Est. Birth Year | ~1898 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Ole | Age | Birth yr |
|---|---|---|---|---|
| Lorraine Johnson | Daughter | — | 11 | ~1929 |
| Orland Johnson | Son | — | 5 | ~1935 |
| Ole Johnson | Head | — | 42 | ~1898 |
| Dora Johnson | Daughter | — | 7 | ~1933 |
| Charles Johnson | Son | — | 9 | ~1931 |
| Laverne Johnson | Son | — | 14 | ~1926 |
| Alice Johnson | Daughter | — | 15 | ~1925 |
| Amy Johnson | Spouse | — | 37 | ~1903 |
Census Appearances
1920
Worth, Iowa
Head, age 21
Worth, Iowa · implied b. ~1899 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Ole |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Norway |
| Mother's Birthplace | Iowa |
| Occupation | Farmer |
| Industry | General farm |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Worth, Iowa
Head, age 32
Worth, Iowa · implied b. ~1898 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Ole A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 26 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Iowa |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Worth-County, Iowa
Head, age 42
Worth-County, Iowa · implied b. ~1898 — 8 household members
| Surname | Johnson |
| Given Name | Ole A. |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Kensett twp. |
| 1935 Residence (County) | Worth |
| Occupation | farmer |
| Industry | farm |
| Class of Worker | OA |
| Hours Worked | 70 |
| Income (1939) | 0 |
| Highest Grade | S 7 |
| 1935 Residence | Same place |
| 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 Ole Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ole Johnson
Head · 1940 · age 42 · b. ~1898 · Iowa
★ 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 — Worth-County, Iowa
Open full size
1940 US Federal Census — Worth-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01217-00247)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Frank C. Hall | 19 | son | Farm Laborer | Iowa |
| 42 | Ernest H. Tenney | 45 | head | Farmer | Iowa |
| 43 | Sophia Tenney | 72 | mother | — | Iowa |
| 44 | Alfred N. Tenney | 40 | head | Farmer | Iowa |
| 45 | Effie M. Tenney | 37 | wife | — | Iowa |
| 46 | Edgar A. Tenney | 14 | son | — | Minnesota |
| 47 | Ole A. Johnson THIS PERSON | 42 | head | Farmer | Iowa |
| 48 | Amy I. Johnson | 37 | wife | — | Iowa |
| 49 | Alice Johnson | 15 | daughter | — | Iowa |
| 50 | Laverne L. Johnson | 14 | son | — | Iowa |
| 51 | Lorraine G. Johnson | 11 | daughter | — | Iowa |
| 52 | Charles D. Johnson | 9 | son | — | Iowa |
| 53 | Dora E. Johnson | 7 | daughter | — | Iowa |
| 54 | Orland A. Johnson | 5 | son | — | Iowa |
| 55 | Ole I. Harmon | 61 | head | Farmer | Iowa |
| 56 | Saga C. Harmon | 55 | wife | — | North Dakota |
| 57 | Carl Groe | 58 | hired hand | Farm Laborer | Iowa |
| 58 | Doris C. Buntrock | 27 | servant | House Work | Minnesota |
| 59 | Julius I. Hauge | 44 | head | Farmer | Iowa |
| 60 | Ruby R. Hauge | 38 | wife | — | Iowa |
| 61 | Jerome R. Hauge | 10 | son | — | Iowa |
| 62 | Crystal B. Hauge | 8 | daughter | — | Iowa |
| 63 | Arlene R. Hauge | 7 | daughter | — | Iowa |
| 64 | Mavis V. Hauge | 5 | daughter | — | Iowa |
| 65 | Laverne D. Hauge | 3 | son | — | Iowa |
| 66 | Duane J. Hauge | 0 | son | — | Iowa |
| 67 | Nels H. O. Stime | 64 | head | Farmer | Iowa |
| 68 | Andrena H. Stime | 57 | sister | — | Iowa |
| 69 | Arnt Olson | 72 | head | Nursery Salesman | Norway |
| 70 | Iver Olson | 40 | son | Farm Laborer | Iowa |
| 71 | Iver E. Olson | 27 | son | Laborer | Iowa |
| 72 | Francisco E. Sierra | 32 | head | Laborer | Mexico |
| 73 | Edward G. Sierra | 12 | son | — | Texas |
| 74 | Aurora G. Sierra | 10 | daughter | — | New York |
| 75 | Amelia G. Sierra | 7 | daughter | — | Texas |
| 76 | Rudolph G. Sierra | 5 | son | — | Texas |
| 77 | Francis G. Sierra | 2 | daughter | — | Iowa |
| 78 | Robert B. Kerckhove | 34 | head | Farmer | Belgium |
| 79 | Bessie L. Kerckhove | 31 | wife | — | Minnesota |
| 80 | Raymond F. Kerckhove | 4 | son | — | Iowa |
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)