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Clara Nelson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Multnomah-County, Oregon
Our Model Tree links this Clara Nelson across the 1920, 1930 and 1940 US Censuses in Multnomah-County, Oregon (XGBoost, ~Confirmed), with identified parents Martin & Hannah — first a daughter (b.~1894), then head of a 5-person household.
Age 46
b. ~1894
Female
Daughter
Born: Wisconsin
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Multnomah-County, Oregon |
| Surname | Nelson |
| Given Name | Clara |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Portland City |
| 1935 Residence (County) | Multnomah |
| Additional Details | |
| Occupation | Grammar Teacher |
| Industry | Public School |
| Class of Worker | GW |
| Hours Worked | 30 |
| Income (1939) | 1300 |
| Highest Grade | C 4 |
| 1935 Residence | Same House |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
| Occupation | Grammar Teacher |
| Township / Ward | Portland City |
| Est. Birth Year | ~1894 |
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 Clara | Age | Birth yr |
|---|---|---|---|---|
| Clara Nelson | Daughter | — | 46 | ~1894 |
| Olie Theener | Other | — | 53 | ~1887 |
| Hannah Nelson | Spouse | — | 63 | ~1877 |
| Martin Nelson | Head | — | 77 | ~1863 |
| Minnie Nelson | Daughter | — | 42 | ~1898 |
Census Appearances
1920
Multnomah, Oregon
Daughter, age 26
Multnomah, Oregon · implied b. ~1894 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Clara A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1930
Multnomah, Oregon
Daughter, age 37
Multnomah, Oregon · implied b. ~1893 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Clara A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
1940
Multnomah-County, Oregon
Daughter, age 46
Multnomah-County, Oregon · implied b. ~1894 — 5 household members
| Surname | Nelson |
| Given Name | Clara |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Single |
| Birthplace | Wisconsin |
| 1935 Residence (City) | Portland City |
| 1935 Residence (County) | Multnomah |
| Occupation | Grammar Teacher |
| Industry | Public School |
| Class of Worker | GW |
| Hours Worked | 30 |
| Income (1939) | 1300 |
| Highest Grade | C 4 |
| 1935 Residence | Same House |
| Birth State | Wisconsin |
| Birth Country | United States |
| Birthplace (normalized) | wisconsin |
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 Clara Nelson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Martin Nelson (~0.92 confidence) and mother Hannah Nelson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Martin Nelson
b. ~1867
Source father
● Household
· direct · ~0.92
Mother
Hannah Nelson
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Clara Nelson
Daughter · 1940 · age 46 · b. ~1894 · Oregon
★ You are viewing this record
Sibling
Minnie Nelson
Sibling · 1940 · age 42
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 — Multnomah-County, Oregon
Open full size
1940 US Federal Census — Multnomah-County, Oregon
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-03394-00606)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Elsie Hollan | 29 | Wife | — | Washington |
| 2 | Gary Hollan | 7 | Son | — | Washington |
| 3 | Kenneth Springer | 31 | Head | Plant Man | Iowa |
| 4 | Esther Springer | 26 | Wife | — | Oregon |
| 5 | Linda Springer | 5 | Daughter | — | Oregon |
| 6 | Robert B. Hendrickson | 70 | Head | — | Denmark |
| 7 | Francis H. Maiken | 28 | Head | Laborer | Oregon |
| 8 | Verna Maiken | 26 | Wife | — | California |
| 9 | Patsy Maiken | 4 | Daughter | — | California |
| 10 | Beatrice Maiken | 2 | Daughter | — | Oregon |
| 11 | Ira Bell | 35 | Head | Laborer | Wisconsin |
| 12 | Violet Bell | 29 | Wife | — | Wisconsin |
| 13 | Illa L. Bell | 14 | Daughter | — | Wisconsin |
| 14 | Alymeda Bell | 11 | Daughter | — | Wisconsin |
| 15 | Sherman Bell | 5 | Son | — | Wisconsin |
| 16 | Elsworth Bell | 1 | Son | — | Oregon |
| 17 | James Holmes | 53 | Head | Laborer | Oregon |
| 18 | Martha Holmes | 46 | Wife | — | California |
| 19 | Earl Farr | 49 | Head | Salesman | Oregon |
| 20 | Madeline Farr | 46 | Wife | Operator | Oregon |
| 21 | Earl Farr | 19 | Son | Sailor | Oregon |
| 22 | John Nixon | 48 | Head | Power Chainsaw | Minnesota |
| 23 | Mary Nixon | 43 | Wife | — | Massachusetts |
| 24 | Mary Nixon | 17 | Daughter | — | California |
| 25 | Annie Nixon | 10 | Daughter | — | Oregon |
| 26 | Martin L. Nelson | 77 | Head | — | Norway |
| 27 | Hannah Nelson | 63 | Wife | — | Norway |
| 28 | Clara Nelson THIS PERSON | 46 | Daughter | Grammar Teacher | Wisconsin |
| 29 | Minnie Nelson | 42 | Daughter | Private Tutor | Wisconsin |
| 30 | Olie P. Theener | 53 | Brother-in-law | Machinist | Wisconsin |
| 31 | Charles Divine | 56 | Head | Cut Off Sawyer | Michigan |
| 32 | Esther Divine | 53 | Wife | — | Washington |
| 33 | John H. Jones | 39 | Head | Laborer | Iowa |
| 34 | Helen Jones | 24 | Wife | — | Montana |
| 35 | Glenn Robinson | 28 | Head | Painter | Kansas |
| 36 | Roberta Robinson | 21 | Wife | — | Oregon |
| 37 | James Robinson | 1 | Son | — | Oregon |
| 38 | Aslie Adams | 33 | Head | Laborer | Oregon |
| 39 | Louise Adams | 29 | Wife | Laborer | Oregon |
Related Census Records
Pedigree Summary
Clara + 1 sibling
Gen 1 · 2 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)