RC
Robert Cox — 1940 US Census Record
Model Tree available1940 United States Federal Census · Lane-County, Oregon
Our Model Tree links this Robert Cox across the 1920, 1930 and 1940 US Censuses in Lane-County, Oregon (XGBoost, ~Confirmed), with identified parents Elbert & Elbert — first a son (b.~1919), then head of a 5-person household.
Age 21
b. ~1919
Male
Son
Born: Oregon
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lane-County, Oregon |
| Surname | Cox |
| Given Name | Robert E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Oregon |
| 1935 Residence (City) | Willabridge Prec. |
| 1935 Residence (County) | Lane |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | NP |
| Highest Grade | C 2 |
| 1935 Residence | Same place |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
| Occupation | Farmer |
| Township / Ward | Willabridge Prec |
| Est. Birth Year | ~1919 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Alice Cox | Daughter | — | 18 | ~1922 |
| Elbert Cox | Head | — | 56 | ~1884 |
| Robert Cox | Son | — | 21 | ~1919 |
| James Cox | Son | — | 11 | ~1929 |
| Ellen Cox | Spouse | — | 53 | ~1887 |
Census Appearances
1920
Lane, Oregon
Son, age 1
Lane, Oregon · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cox |
| Given Name | Robert Elbert |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1930
Lane, Oregon
Son, age 11
Lane, Oregon · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cox |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Oregon |
| Father's Birthplace | Michigan |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Oregon |
| Birth Country | United States |
| Birthplace (normalized) | oregon |
1940
Lane-County, Oregon
Son, age 21
Lane-County, Oregon · implied b. ~1919 — 5 household members
| Surname | Cox |
| Given Name | Robert E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Oregon |
| 1935 Residence (City) | Willabridge Prec. |
| 1935 Residence (County) | Lane |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | NP |
| Highest Grade | C 2 |
| 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 Robert Cox across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Elbert Cox (~0.92 confidence) and father Elbert Cox (~0.92 confidence) and father Elbert Cox (~0.92 confidence) and mother Ellen Cox (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Elbert Cox
b. ~1854
Source father
● Household
· direct · ~0.92
Father
Elbert Cox
b. ~1884
Source father
● Household
· direct · ~0.92
Father
Elbert Cox
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Ellen Cox
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Cox
Son · 1940 · age 21 · b. ~1919 · Oregon
★ You are viewing this record
Sibling
James Cox
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Cox
Sibling · 1940 · age 18
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 — Lane-County, Oregon
Open full size
1940 US Federal Census — Lane-County, Oregon
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03369-01067)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Forrest B. James | 44 | Son | Farmer | Illinois |
| 2 | Howard L. James | 36 | Head | Laborer | Nebraska |
| 3 | Ethel O. James | 37 | Wife | — | Nebraska |
| 4 | Cecil W. Smith | 43 | Head | Laborer | Colorado |
| 5 | Ivy Smith | 35 | Wife | — | Colorado |
| 6 | Kenneth L. Chenet | 13 | Son | — | Colorado |
| 7 | Vera Lee Chenet | 11 | Daughter | — | Colorado |
| 8 | William G. Smith | 5 | Son | — | Colorado |
| 9 | Robert S. Smith | 3 | Son | — | Oregon |
| 10 | Harlan G. Barnard | 42 | Head | Laborer | Iowa |
| 11 | Elva V. Barnard | 42 | Wife | — | Nebraska |
| 12 | John R. Barnard | 18 | Son | Laborer | Colorado |
| 13 | Norman J. Schneider | 47 | Head | Farmer | Canada English |
| 14 | Mary L. Schneider | 54 | Wife | — | North Dakota |
| 15 | Elbert L. Cox | 56 | Head | Farmer | Michigan |
| 16 | Ellen A. Cox | 53 | Wife | — | Illinois |
| 17 | Robert E. Cox THIS PERSON | 21 | Son | Farmer | Oregon |
| 18 | Alice V. Cox | 18 | Daughter | — | Oregon |
| 19 | James B. Cox | 11 | Son | — | Oregon |
| 20 | Clem Howell | 55 | Head | Farmer | Kansas |
| 21 | Kathryn Howell | 39 | Wife | — | Illinois |
| 22 | Clement L. Howell | 17 | Son | Farmer | Oregon |
| 23 | Thomas H. Howell | 1 | Son | — | Oregon |
| 24 | Martin F. Howell | 57 | Head | Laborer | Kansas |
| 25 | Arthur F. Willson | 45 | Head | Laborer | Idaho |
| 26 | Grace E. Willson | 40 | Wife | — | Idaho |
| 27 | Clarence J. Sylvester | 31 | Head | Printer | Oregon |
| 28 | Doris Sylvester | 30 | Wife | — | Texas |
| 29 | Doris H. Sylvester | 12 | Daughter | — | Oregon |
| 30 | Richard E. Sylvester | 4 | Son | — | Oregon |
| 31 | Leroy E. Dickson | 37 | Head | Laborer | Oregon |
| 32 | Viola H. Dickson | 22 | Wife | — | Washington |
| 33 | Eugene E. Dickson | 3 | Son | — | Washington |
| 34 | Eugene Wilson | 52 | Head | Farmer | Nebraska |
| 35 | Grace E. Wilson | 45 | Wife | Cook W.P.A. | Oregon |
| 36 | Owen F. Wilson | 18 | Son | Farmer | Oregon |
| 37 | Wesley J. Wilson | 14 | Son | — | Oregon |
| 38 | Phillip J. Wilson | 9 | Son | — | Oregon |
| 39 | Ernest L. Howard | 62 | Head | Farmer | Oregon |
| 40 | Peter Evonuk | 47 | Head | Repairman | Austria |
Pedigree Summary
Robert + 2 siblings
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)