IN
Irene Nelson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · San-Diego-County, California
Our Model Tree links this Irene Nelson across the 1920, 1930 and 1940 US Censuses in San-Diego-County, California (XGBoost, ~Confirmed) — first a spouse (b.~1901), then head of a 3-person household.
Age 39
b. ~1901
Female
Spouse
Born: Montana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Diego-County, California |
| Surname | Nelson |
| Given Name | Irene |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Montana |
| 1935 Residence (City) | San Diego City |
| 1935 Residence (County) | San Diego |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 5 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
| Township / Ward | San Diego City |
| Est. Birth Year | ~1901 |
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 Irene | Age | Birth yr |
|---|---|---|---|---|
| Edward Nelson | Son | — | 11 | ~1929 |
| Irene Nelson | Spouse | — | 39 | ~1901 |
| Edward Nelson | Head | — | 50 | ~1890 |
Census Appearances
1920
San Diego, …
Spouse, age 19
San Diego, California · implied b. ~1901 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Irma |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Married |
| Birthplace | Montana |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Minnesota |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1930
San Diego, …
Other, age 29
San Diego, California · implied b. ~1901 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Irene |
| Relationship to Head | Wife - H |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Montana |
| Age at First Marriage | 17 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Minnesota |
| Can Read/Write | Yes |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1940
San-Diego-County, California
Spouse, age 39
San-Diego-County, California · implied b. ~1901 — 3 household members
| Surname | Nelson |
| Given Name | Irene |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Montana |
| 1935 Residence (City) | San Diego City |
| 1935 Residence (County) | San Diego |
| Class of Worker | 0 |
| Hours Worked | 5 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
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 Irene Nelson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Irene Nelson
Spouse · 1940 · age 39 · b. ~1901 · California
★ 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 — San-Diego-County, California
Open full size
1940 US Federal Census — San-Diego-County, California
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-00447-00677)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Carrie Leibenperger | 40 | Head | — | Pennsylvania |
| 42 | Alma N. Leibenperger | 19 | Daughter | Housework | Washington |
| 43 | Dorothy E. Leibenperger | 16 | Daughter | — | Pennsylvania |
| 44 | Barbara M. Leibenperger | 13 | Daughter | — | Pennsylvania |
| 45 | Elmer E. Leibenperger | 12 | Son | — | Pennsylvania |
| 46 | June C. Leibenperger | 8 | Daughter | — | California |
| 47 | Winnie L. Taylor | 57 | Head | Cafeteria Worker | Oregon |
| 48 | Charles R. Martin | 26 | Son-in-law | Electrician | S. Dakota |
| 49 | Mansuela P. Martin | 22 | Daughter | — | California |
| 50 | Theodore R. Cooley | 36 | Head | Aviator | Iowa |
| 51 | Louise G. Cooley | 37 | Wife | — | Colorado |
| 52 | John Allen Cooley | 4 | Son | — | California |
| 53 | John B. Zolazzi | 30 | Head | Capt. Fishing Boat | California |
| 54 | Mary C. Zolazzi | 31 | Wife | — | Mexico |
| 55 | Julius H. Zolazzi | 10 | Son | — | California |
| 56 | Mary Jean Zolazzi | 9 | Daughter | — | California |
| 57 | John H. Zolazzi | 8 | Son | — | California |
| 58 | Amelia L. Zolazzi | 2 | Daughter | — | California |
| 59 | Edna B. Mueller | 47 | Head | — | Illinois |
| 60 | Wm. E. Pieper | 33 | Head | Bookkeeping | Indiana |
| 61 | Arline W. Pieper | 24 | Wife | — | Idaho |
| 62 | Lua Mae Pieper | 4 | Daughter | — | California |
| 63 | Robert E. Pieper | 2 | Son | — | California |
| 64 | Leo R. Gerber | 30 | Head | Salesman | Nebraska |
| 65 | Mildred M. Gerber | 30 | Wife | — | Nebraska |
| 66 | Donald J. Neville | 26 | Head | Salesman | Iowa |
| 67 | Irene Neville | 24 | Wife | Nurse | Nebraska |
| 68 | Michael E. Neville | 2 | Son | — | California |
| 69 | James A. Ogle | 32 | Head | Pest Control | Colorado |
| 70 | May D. Ogle | 30 | Wife | — | Utah |
| 71 | Marion E. Ogle | 8 | Daughter | — | California |
| 72 | James A. Jr. Ogle | 3 | Son | — | California |
| 73 | Lena E. Ogle | 61 | Mother | — | Illinois |
| 74 | Joseph P. Foukes | 43 | Head | Nurseryman | Pennsylvania |
| 75 | Mary L. Foukes | 37 | Wife | — | Montana |
| 76 | Edward Nelson | 50 | Head | — | New York |
| 77 | Irene Nelson THIS PERSON | 39 | Wife | — | Montana |
| 78 | Edward J. Nelson | 11 | Son | — | California |
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)