TJ
Theodore Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Clatsop-County, Oregon
Our Model Tree links this Theodore Johnson across the 1920, 1930 and 1940 US Censuses in Clatsop-County, Oregon (XGBoost, ~Confirmed), with identified parents Mary & Charles — first a son (b.~1906), then head of a 5-person household.
Age 34
b. ~1906
Male
Son
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Clatsop-County, Oregon |
| Surname | Johnson |
| Given Name | Theodore J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Svensen |
| Additional Details | |
| Occupation | Blacksmith |
| Industry | Logging |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 900 |
| Highest Grade | No 8 |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Blacksmith |
| Township / Ward | Svensen |
| Est. Birth Year | ~1906 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Theodore | Age | Birth yr |
|---|---|---|---|---|
| Charles Johnson | Head | — | 45 | ~1895 |
| Dale Johnson | Son | — | 12 | ~1928 |
| Charlie Johnson | Son | — | 27 | ~1913 |
| Theodore Johnson | Son | — | 34 | ~1906 |
| Mary Johnson | Spouse | — | 60 | ~1880 |
Census Appearances
1920
Clatsop, Oregon
Son, age 14
Clatsop, Oregon · implied b. ~1906 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Theodore J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Washington |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Clatsop, Oregon
Other, age 24
Clatsop, Oregon · implied b. ~1906 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Theodore L. |
| Relationship to Head | Lodger |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Washington |
| Occupation | Blacksmith |
| Industry | Logging Camp |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Clatsop-County, Oregon
Son, age 34
Clatsop-County, Oregon · implied b. ~1906 — 5 household members
| Surname | Johnson |
| Given Name | Theodore J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Svensen |
| Occupation | Blacksmith |
| Industry | Logging |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 900 |
| Highest Grade | No 8 |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
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 Theodore Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Mary Johnson (~0.92 confidence) and father Charles Johnson (~0.60 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.76
Mother
Mary Johnson
b. ~1880
Source mother
● Household
· direct · ~0.92
Father
Charles Johnson
b. ~1895
Source father
● Household
· direct · ~0.6
This person
Anchor record
Theodore Johnson
Son · 1940 · age 34 · b. ~1906 · Oregon
★ You are viewing this record
Sibling
Charlie Johnson
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dale Johnson
Sibling · 1940 · age 12
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 — Clatsop-County, Oregon
Open full size
1940 US Federal Census — Clatsop-County, Oregon
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03356-00482)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | George N Morris | 55 | Son in law | Brakeman | Indiana |
| 42 | Edith B Morris | 43 | Daughter | — | Oregon |
| 43 | Margaret E Morris | 18 | Granddaughter | — | Oregon |
| 44 | Fred O Hulters | 55 | Head | Farmer | Oregon |
| 45 | Nellie M Hulters | 53 | Wife | — | Minnesota |
| 46 | Caroline A Hill | 5 | Neice | — | Oregon |
| 47 | John Sarkie | 65 | Head | Laborer Sec | Finland |
| 48 | Wilhelmina Sarkie | 55 | Wife | — | Finland |
| 49 | Clifford M Ritter | 42 | Head | Stationary Fireman | Ohio |
| 50 | Clara D Ritter | 33 | Wife | — | Washington |
| 51 | Barbara J Ritter | 12 | Daughter | — | Washington |
| 52 | Fayette S Brooks | 56 | Head | Laborer Sec | Maine |
| 53 | Ruth M Brooks | 56 | Wife | — | Nebraska |
| 54 | John Smeds | 36 | Head | — | Finland |
| 55 | Esther Smeds | 35 | Wife | — | Oregon |
| 56 | Ray Myer | 41 | Head | Partner In Farm | Oregon |
| 57 | Hildred Myer | 36 | Wife | — | California |
| 58 | Alexander Young | 67 | Head | Farmer | New York |
| 59 | Andrew Dallstrom | 52 | Head | Brakeman | Sweden |
| 60 | Lilly Dallstrom | 46 | Wife | — | Washington |
| 61 | Rodney Dallstrom | 18 | Son | — | Oregon |
| 62 | Robert E Dallstrom | 12 | Son | — | Oregon |
| 63 | Charles R Johnson | 45 | Head | — | Tennessee |
| 64 | Mary E Johnson | 60 | Wife | — | Washington |
| 65 | Theodore J Johnson THIS PERSON | 34 | Son | Blacksmith | California |
| 66 | Charlie R Johnson | 27 | Son | Laborer Sec | Oregon |
| 67 | Dale R Johnson | 12 | Son | — | Oregon |
| 68 | Helly Johnson | 29 | Head | Mechanic | California |
| 69 | Lucille V Johnson | 27 | Wife | — | Oregon |
| 70 | Rene A Dupont | 58 | Head | Farmer | Indiana |
| 71 | Bessie Dupont | 40 | Wife | — | Oregon |
| 72 | Glen Dupont | 27 | Son | — | Oregon |
| 73 | Iris Dupont | 24 | Daughter | Postmaster | Oregon |
| 74 | Carl Hoglund | 51 | Head | Road Master | Finland |
| 75 | Alma Hoglund | 66 | Wife | — | Finland |
| 76 | Clara A Hoglund | 25 | Daughter | — | Oregon |
| 77 | Thomas B King | 50 | Head | Mechanic | England |
| 78 | Mary King | 47 | Wife | — | England |
| 79 | Harry T King | 24 | Son | — | Oregon |
| 80 | Vernon M King | 22 | Son | Speederman | Oregon |
Related Census Records
Pedigree Summary
Theodore + 2 siblings
Gen 1 · 2 parents
~0.76
Max depth 4 (1900–1950 window)
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)