JN
John Nichols — 1940 US Census Record
Model Tree available1940 United States Federal Census · Wasco-County, Oregon
Our Model Tree links this John Nichols across the 1920, 1930 and 1940 US Censuses in Wasco-County, Oregon (XGBoost, ~Confirmed), with identified parents William & Bertha — first a head (b.~1904), then head of a 4-person household.
Age 36
b. ~1904
Male
Head
Born: Oklahoma
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Wasco-County, Oregon |
| Surname | Nichols |
| Given Name | John R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Oklahoma |
| 1935 Residence (City) | The Dalles |
| 1935 Residence (County) | Wasco |
| Additional Details | |
| Occupation | Civil Engineer |
| Industry | County |
| Class of Worker | GW |
| Hours Worked | 84 |
| Income (1939) | 2220 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
| Occupation | Civil Engineer |
| Township / Ward | The Dalles |
| Est. Birth Year | ~1904 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| John Nichols | Head | — | 36 | ~1904 |
| Robert Nichols | Son | — | 8 | ~1932 |
| John Nichols | Son | — | 11 | ~1929 |
| Vina Nichols | Spouse | — | 31 | ~1909 |
Census Appearances
1920
Wasco, Oregon
Son, age 16
Wasco, Oregon · implied b. ~1904 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nichols |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
1930
Wasco, Oregon
Head, age 26
Wasco, Oregon · implied b. ~1904 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nichols |
| Given Name | John R |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Oklahoma |
| Age at First Marriage | 24 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Illinois |
| Occupation | Surveyor |
| Industry | County |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 3700 |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
1940
Wasco-County, Oregon
Head, age 36
Wasco-County, Oregon · implied b. ~1904 — 4 household members
| Surname | Nichols |
| Given Name | John R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Oklahoma |
| 1935 Residence (City) | The Dalles |
| 1935 Residence (County) | Wasco |
| Occupation | Civil Engineer |
| Industry | County |
| Class of Worker | GW |
| Hours Worked | 84 |
| Income (1939) | 2220 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
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 John Nichols across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Nichols (~0.92 confidence) and mother Bertha Nichols (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Nichols
b. ~1862
Source father
● Household
· direct · ~0.92
Mother
Bertha Nichols
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Nichols
Head · 1940 · age 36 · b. ~1904 · 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 — Wasco-County, Oregon
Open full size
1940 US Federal Census — Wasco-County, Oregon
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-03381-00986)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 42 | John R. Farrington | 58 | Head | Manager | Indiana |
| 43 | Maude Farrington | 52 | Wife | — | Michigan |
| 44 | Helen Jane Farrington | 23 | Daughter | — | Oregon |
| 45 | Suzanne Farrington | 13 | Daughter | — | Oregon |
| 46 | Ralph S. Courson | 41 | Head | Line-Type Operator | Texas |
| 47 | Freda Courson | 46 | Wife | — | Minnesota |
| 48 | Robert G. Courson | 9 | Son | — | Maryland |
| 49 | Walter L. Van Horn | 43 | Head | Contractor | Missouri |
| 50 | Vera Van Horn | 41 | Wife | — | Michigan |
| 51 | Lucille Budd | 20 | Daughter | — | Oregon |
| 52 | Betty Van Horn | 12 | Daughter | — | Oregon |
| 53 | Jean Van Horn | 4 | Daughter | — | Oregon |
| 54 | Burrows W. Guinan | 42 | Head | Pharmacist | Michigan |
| 55 | Joyce B. Guinan | 30 | Wife | — | Georgia |
| 56 | Michael W. Guinan | 5 | Son | — | Washington |
| 57 | Sheri A. Guinan | 3 | Daughter | — | Washington |
| 58 | Harland R. Fancher | 52 | Head | Proprietor | Minnesota |
| 59 | Gardiner Fancher | 48 | Wife | Music Teacher | S. Dakota |
| 60 | Harland R. (Jr.) Fancher | 22 | Son | Floor Man | Oregon |
| 61 | Bradford D. Fancher | 20 | Son | — | Oregon |
| 62 | Jocelyn Fancher | 15 | Daughter | — | Oregon |
| 63 | John R. Nichols THIS PERSON | 36 | Head | Civil Engineer | Oklahoma |
| 64 | Vina A. Nichols | 31 | Wife | — | Oregon |
| 65 | John R. Nichols | 11 | Son | — | Oregon |
| 66 | Robert R. Nichols | 8 | Son | — | Oregon |
| 67 | Harry Nordquist | 51 | Head | Contractor | Sweden |
| 68 | Olga Nordquist | 46 | Wife | Housework | S. Dakota |
| 69 | Curtis Nordquist | 22 | Son | Cement Mixer & Plasterer | S. Dakota |
| 70 | Delbert Nordquist | 19 | Son | Carpenter | S. Dakota |
| 71 | Valgean Nordquist | 16 | Son | Laborer | S. Dakota |
| 72 | Harvey Nordquist | 14 | Son | Delivery Boy | S. Dakota |
| 73 | Lucille Nordquist | 12 | Daughter | — | S. Dakota |
| 74 | Harry M. Ford | 68 | Head | Decorator | Ohio |
| 75 | Clarice S. Ford | 64 | Wife | — | Ohio |
| 76 | Bessie J. Miller | 59 | Head | — | N. Carolina |
| 77 | Jack Miller | 26 | Son | — | Oregon |
| 78 | Magdaline James | 34 | Head | Waitress | Montana |
| 79 | Terrance James | 17 | Son | — | Oregon |
Pedigree Summary
John
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)