DN
Donald Nelson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Ventura-County, California
Our Model Tree links this Donald Nelson across the 1920, 1930 and 1940 US Censuses in Ventura-County, California (XGBoost, ~Confirmed), with identified parents Charles & Edith — first a son (b.~1917), then head of a 4-person household.
Age 23
b. ~1917
Male
Son
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Ventura-County, California |
| Surname | Nelson |
| Given Name | Donald Crab. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (County) | Ventura |
| Additional Details | |
| Highest Grade | C 3 |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Saticoy |
| Est. Birth Year | ~1917 |
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 Donald | Age | Birth yr |
|---|---|---|---|---|
| Donald Nelson | Son | — | 23 | ~1917 |
| Edith Nelson | Spouse | — | 48 | ~1892 |
| Thomas Nelson | Son | — | 11 | ~1929 |
| Charles Nelson | Head | — | 54 | ~1886 |
Census Appearances
1920
Ventura, California
Son, age 1
Ventura, California · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Donald |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Maine |
| Mother's Birthplace | Massachusetts |
| Industry | none |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Ventura, California
Son, age 12
Ventura, California · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Maine |
| Mother's Birthplace | Vermont |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Ventura-County, California
Son, age 23
Ventura-County, California · implied b. ~1917 — 4 household members
| Surname | Nelson |
| Given Name | Donald Crab. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (County) | Ventura |
| Highest Grade | C 3 |
| 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 Donald Nelson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Nelson (~0.92 confidence) and mother Edith Nelson (~0.92 confidence) and mother Edith Nelson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Nelson
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Edith Nelson
b. ~1892
Source mother
● Household
· direct · ~0.92
Mother
Edith Nelson
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Donald Nelson
Son · 1940 · age 23 · b. ~1917 · California
★ You are viewing this record
Sibling
Thomas Nelson
Sibling · 1940 · age 11
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 — Ventura-County, California
Open full size
1940 US Federal Census — Ventura-County, California
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-00363-00332)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Paul M Haase | 2 | son | — | California |
| 2 | Vernon H Nelson | 29 | Head | Citrus Ranch | Nebraska |
| 3 | Arlene M Nelson | 25 | wife | Citrus House | Iowa |
| 4 | James G. D. Clark | 39 | Head | 54 | Minnesota |
| 5 | Mildred G Clark | 38 | wife | 4 | Kansas |
| 6 | Ethel E. Clark | 17 | daughter | 6 | California |
| 7 | Stephen D Clark | 6 | son | — | California |
| 8 | Harley J. Keck | 39 | Head | 54 | Missouri |
| 9 | Zora E. Keck | 37 | wife | — | Missouri |
| 10 | Madaline Keck | 18 | daughter | — | Missouri |
| 11 | Maxine Keck | 16 | daughter | — | Missouri |
| 12 | Marsha Keck | 8 | daughter | — | Missouri |
| 13 | Orville H Phillips | 27 | Head | 57 | Missouri |
| 14 | Robert P. Phillips | 20 | brother | 27 | Oklahoma |
| 15 | Edgar R Harris | 53 | Head | Gas Plant | Tennessee |
| 16 | William Rachael | 52 | Head | 54 | Minnesota |
| 17 | Claude E Richardson | 32 | Head | 48 | Oklahoma |
| 18 | Rosel Richardson | 31 | wife | — | Oklahoma |
| 19 | Leroy J Richardson | 10 | son | — | Missouri |
| 20 | Gertrude Schliemer | 44 | Head | Private Home | Illinois |
| 21 | John B Schliemer | 14 | son | — | California |
| 22 | James A Schliemer | 11 | son | — | California |
| 23 | Roy Foster | 35 | Head | 40 | Missouri |
| 24 | Cardie M. Foster | 30 | wife | — | Missouri |
| 25 | Lewis E Brock | 48 | Head | Ventura Co. | Missouri |
| 26 | Ida S. Brock | 53 | wife | Telephone Co. | California |
| 27 | Frank W Martin | 28 | lodger | Cafe | Arkansas |
| 28 | Beatrice F Wright | 36 | Head | High School | Idaho |
| 29 | Betty G. Baird | 25 | lodger | 40 | Pennsylvania |
| 30 | Margaret L Chase | 23 | lodger | 40 | California |
| 31 | Charles G Nelson | 54 | Head | Citrus Ranch | Maine |
| 32 | Edith P. Nelson | 48 | wife | — | Vermont |
| 33 | Donald Crab. Nelson THIS PERSON | 23 | son | — | California |
| 34 | Thomas G Nelson | 11 | son | — | California |
| 35 | Wilber P. Britt | 27 | Head | Texas Oil Co. | California |
| 36 | Mary H Britt | 22 | wife | — | Iowa |
| 37 | Sarah L Britt | 2 | daughter | — | California |
| 38 | William W Britt | 0 | son | — | California |
Related Census Records
Pedigree Summary
Donald + 1 sibling
Gen 1 · 3 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)