FJ
Fred Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Clackamas-County, Oregon
Our Model Tree links this Fred Johnson across the 1920, 1930 and 1940 US Censuses in Clackamas-County, Oregon (XGBoost, ~Confirmed) — first a head (b.~1895), then head of a 4-person household.
Age 45
b. ~1895
Male
Head
Born: Colorado
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Clackamas-County, Oregon |
| Surname | Johnson |
| Given Name | Fred A. |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Portland |
| 1935 Residence (County) | Multnomah |
| Additional Details | |
| Occupation | Plumbing & heating salesman |
| Industry | Wholesale Plumbing Co. |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 278 |
| Highest Grade | 7 |
| 1935 Residence | Oregon |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Plumbing & Heating Salesman |
| Township / Ward | Milwaukie Town |
| Est. Birth Year | ~1895 |
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 Fred | Age | Birth yr |
|---|---|---|---|---|
| Judith Johnson | Daughter | — | 1 | ~1939 |
| Fred Johnson | Head | — | 45 | ~1895 |
| Lloyd Johnson | Son | — | 17 | ~1923 |
| Pearl Johnson | Spouse | — | 39 | ~1901 |
Census Appearances
1920
Multnomah, Oregon
Other, age 23
Multnomah, Oregon · implied b. ~1897 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Fred |
| Relationship to Head | Lodger |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Calking |
| Industry | Shipyard |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Multnomah, Oregon
Head, age 34
Multnomah, Oregon · implied b. ~1896 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnsen |
| Given Name | Fred L |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Colorado |
| Age at First Marriage | 24 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Ireland |
| Occupation | Salesman |
| Industry | Plumbing |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 3500 |
| Radio Set | R |
| Veteran | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Clackamas-County, Oregon
Head, age 45
Clackamas-County, Oregon · implied b. ~1895 — 4 household members
| Surname | Johnson |
| Given Name | Fred A. |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Portland |
| 1935 Residence (County) | Multnomah |
| Occupation | Plumbing & heating salesman |
| Industry | Wholesale Plumbing Co. |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 278 |
| Highest Grade | 7 |
| 1935 Residence | Oregon |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
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 Fred Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Fred Johnson
Head · 1940 · age 45 · b. ~1895 · Oregon
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Clackamas-County, Oregon
Open full size
1940 US Federal Census — Clackamas-County, Oregon
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03355-00045)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Hazel Burnett | 48 | Head | House Work | Iowa |
| 2 | Joan Burnett | 17 | daughter | Nya | Iowa |
| 3 | John A. Anderson | 50 | head | Chain Man | Sweden |
| 4 | Laura M. Anderson | 45 | wife | — | Colorado |
| 5 | Ella M. Anderson | 22 | daughter | — | Wash |
| 6 | Esther M. Anderson | 21 | daughter | — | Oregon |
| 7 | Albert A. Anderson | 19 | son | Delivery Boy | Oregon |
| 8 | John E. Anderson | 16 | son | — | Oregon |
| 9 | Victor E. Harr | 42 | head | Lawyer | Nebraska |
| 10 | Ruth F. Harr | 33 | wife | Circulation Mgr | Oregon |
| 11 | Jerome D. Harr | 1 | son | — | Oregon |
| 12 | Fred J. Cowell | 63 | head | Mail Carrier | Minnesota |
| 13 | Abbie J. Cowell | 54 | wife | — | Minnesota |
| 14 | Joyce M. Cowell | 18 | daughter | — | Minnesota |
| 15 | Fred A. Johnson THIS PERSON | 45 | head | Plumbing & Heating Salesman | Colorado |
| 16 | Pearl G. Johnson | 39 | wife | — | Nebraska |
| 17 | Lloyd A. Johnson | 17 | son | Paper Carrier | Oregon |
| 18 | Judith Johnson | 1 | daughter | — | Oregon |
| 19 | Charles H. Wilder | 32 | head | Painter | Colorado |
| 20 | Katherine M. Wilder | 28 | wife | — | Washington |
| 21 | Roger C. Wilder | 2 | son | — | Oregon |
| 22 | Todd V. Wilder | 0 | son | — | Oregon |
| 23 | Leonard W. Raynor | 40 | head | Assistant Purchasing Agent | Michigan |
| 24 | Ethel M. Raynor | 41 | wife | Saleslady | Oregon |
| 25 | Mary M. Swank | 20 | daughter | — | Indiana |
| 26 | Ludwig Strauss | 55 | head | Florist | Germany |
| 27 | Pauline Strauss | 54 | wife | — | New York |
| 28 | Claude Strauss | 25 | son | Factory Representative | Washington |
| 29 | William Landstrom | 60 | head | R.R. Machinist | Sweden |
| 30 | Olivia Landstrom | 52 | wife | — | Iowa |
| 31 | Roy Landstrom | 25 | son | Laborer | Kansas |
| 32 | Lloyd Landstrom | 21 | son | — | Kansas |
| 33 | Robert Landstrom | 19 | son | Physical Instructor | Kansas |
| 34 | Marguerite Landstrom | 15 | daughter | — | Kansas |
| 35 | James T. Day | 43 | head | Booms Man | Wisconsin |
| 36 | Carrie M. Day | 40 | wife | — | Nebraska |
| 37 | Ivan R. Miller | 31 | head | Combination Man | Oregon |
| 38 | Leone S. Miller | 25 | wife | — | California |
| 39 | Howard J. Miller | 5 | son | — | Oregon |
| 40 | Lois L. Miller | 1 | daughter | — | Oregon |
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)