DT
Dorothy Thompson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Clackamas-County, Oregon
Our Model Tree links this Dorothy Thompson across the 1920, 1930 and 1940 US Censuses in Clackamas-County, Oregon (XGBoost, ~Confirmed), with identified parents Alvin & Anna — first a daughter (b.~1918), then head of a 3-person household.
Age 22
b. ~1918
Female
Daughter
Born: Oregon
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Clackamas-County, Oregon |
| Surname | Thompson |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Oregon |
| 1935 Residence (City) | Needy Precinct |
| 1935 Residence (County) | Clackamas |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
| Township / Ward | Needy Precinct |
| Est. Birth Year | ~1918 |
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 Dorothy | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Thompson | Daughter | — | 22 | ~1918 |
| Alvin Thompson | Head | — | 67 | ~1873 |
| Dora Thompson | Spouse | — | 58 | ~1882 |
Census Appearances
1920
Clackamas, Oregon
Daughter, age 2
Clackamas, Oregon · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Dorothy M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Oregon |
| Mother's Birthplace | Oregon |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1930
Clackamas, Oregon
Daughter, age 12
Clackamas, Oregon · implied b. ~1918 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Oregon |
| Mother's Birthplace | Oregon |
| Can Read/Write | Yes |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1940
Clackamas-County, Oregon
Daughter, age 22
Clackamas-County, Oregon · implied b. ~1918 — 3 household members
| Surname | Thompson |
| Given Name | Dorothy |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Oregon |
| 1935 Residence (City) | Needy Precinct |
| 1935 Residence (County) | Clackamas |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
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 Dorothy Thompson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Alvin Thompson (~0.92 confidence) and mother Anna Thompson (~0.92 confidence) and mother Dora Thompson (~0.92 confidence) and father Alvin Thompson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Alvin Thompson
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Anna Thompson
b. ~1882
Source mother
● Household
· direct · ~0.92
Mother
Dora Thompson
b. ~1882
Source mother
● Household
· direct · ~0.92
Father
Alvin Thompson
b. ~1883
Source father
● Household
· direct · ~0.92
This person
Anchor record
Dorothy Thompson
Daughter · 1940 · age 22 · b. ~1918 · Oregon
★ 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 — 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-t0627-03355-00181)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Johanna Gahler | 54 | Wife | — | Minnesota |
| 42 | Lester E Gahler | 22 | Son | Laborer | Oregon |
| 43 | Beulah M Gahler | 21 | Daughter | — | Oregon |
| 44 | Vernon J Gahler | 17 | Son | — | Oregon |
| 45 | Lester E Conrad | 46 | Head | Farmer | Oregon |
| 46 | Mabel D Conrad | 47 | Wife | — | Oregon |
| 47 | Clifford L Conrad | 19 | Son | — | Oregon |
| 48 | Glenn E Conrad | 12 | Son | — | Oregon |
| 49 | Charles F Schultz | 67 | Head | Farmer | Iowa |
| 50 | Daniel H Schrock | 68 | Head | Farmer | Missouri |
| 51 | Lydia E Schrock | 64 | Wife | — | Illinois |
| 52 | Arthur D Schrock | 31 | Son | Farmer | Illinois |
| 53 | Alvin H Thompson | 67 | Head | Laborer | Illinois |
| 54 | Dora M Thompson | 58 | Wife | — | Oregon |
| 55 | Dorothy Thompson THIS PERSON | 22 | Daughter | — | Oregon |
| 56 | Sarah P Simpkins | 75 | Head | — | Indiana |
| 57 | Peter A Weber | 68 | Head | Farmer | Illinois |
| 58 | Cora L Weber | 63 | Wife | — | Minnesota |
| 59 | Chauncey E Kropf | 53 | Head | Farming | Missouri |
| 60 | Mabel M Kropf | 44 | Wife | — | Nebraska |
| 61 | Floyd L Kropf | 27 | Son | Farmer | Oregon |
| 62 | Lester S Kropf | 20 | Son | Farmer | Oregon |
| 63 | Alice L Kropf | 14 | Daughter | — | Oregon |
| 64 | Charles L Gilmer | 18 | Step-son | — | Idaho |
| 65 | Clarence P Gilmer | 17 | Step-son | — | Idaho |
| 66 | Kenneth R Gilmer | 15 | Step-son | — | Idaho |
| 67 | Melvin E Gilmer | 14 | Step-son | — | Idaho |
| 68 | Jesse E Hughes | 61 | Head | Farmer | Illinois |
| 69 | Ninnie B Hughes | 58 | Wife | — | Illinois |
| 70 | Jacob O Toepfer | 34 | Head | Laborer | Kansas |
| 71 | Marie R Toepfer | 27 | Wife | — | Oregon |
| 72 | Willis H Toepfer | 7 | Son | — | Oregon |
| 73 | Norman J Toepfer | 5 | Son | — | Oregon |
| 74 | Darlene M Toepfer | 4 | Daughter | — | Oregon |
| 75 | William G Kenagy | 48 | Head | Farmer | Missouri |
| 76 | Emma J Kenagy | 45 | Wife | — | Oregon |
| 77 | Edward L Kenagy | 25 | Son | — | Oregon |
| 78 | William G Jr Kenagy | 22 | Son | Laborer | Oregon |
| 79 | Kenneth Ray Kenagy | 18 | Son | Laborer | Canada |
| 80 | Milo Jay Kenagy | 16 | Son | — | Canada |
Pedigree Summary
Dorothy
Gen 1 · 4 parents
~0.92
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)