NJ
Nellie Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · San-Francisco-County, California
Our Model Tree links this Nellie Johnson across the 1920, 1930 and 1940 US Censuses in San-Francisco-County, California (XGBoost, ~Confirmed) — first a spouse (b.~1883), then head of a 4-person household.
Age 57
b. ~1883
Female
Spouse
Born: Sweden
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Francisco-County, California |
| Surname | Johnson |
| Given Name | Nellie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | SAN FRANCISCO |
| 1935 Residence (County) | SAN FRANCISCO |
| Naturalization Status | Naturalized |
| Additional Details | |
| Hours Worked | 5 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
| Township / Ward | San Francisco |
| Est. Birth Year | ~1883 |
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 Nellie | Age | Birth yr |
|---|---|---|---|---|
| Virginia Johnson | Daughter | — | 26 | ~1914 |
| Charles Johnson | Head | — | 59 | ~1881 |
| Charles Johnson | Son | — | 28 | ~1912 |
| Nellie Johnson | Spouse | — | 57 | ~1883 |
Census Appearances
1920
San Francisco, …
Spouse, age 36
San Francisco, California · implied b. ~1884 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Nella |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Sweden |
| Year of Immigration | 1899 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Year of Naturalization | 1900 |
| Birthplace (normalized) | sweden |
1930
San Francisco, …
Spouse, age 47
San Francisco, California · implied b. ~1883 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Nellie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Sweden |
| Naturalization Status | Naturalized |
| Year of Immigration | 1906 |
| Age at First Marriage | 26 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
1940
San-Francisco-County, California
Spouse, age 57
San-Francisco-County, California · implied b. ~1883 — 4 household members
| Surname | Johnson |
| Given Name | Nellie |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Sweden |
| 1935 Residence (City) | SAN FRANCISCO |
| 1935 Residence (County) | SAN FRANCISCO |
| Naturalization Status | Naturalized |
| Hours Worked | 5 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth Country | Sweden |
| Birthplace (normalized) | sweden |
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 Nellie Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Nellie Johnson
Spouse · 1940 · age 57 · b. ~1883 · California
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — San-Francisco-County, California
Open full size
1940 US Federal Census — San-Francisco-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00312-00081)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Kathrine T Hogan | 50 | Sister | Supervising Clerk | Nevada |
| 42 | Bessie Hogan | 48 | Sister | Stenographer | Nevada |
| 43 | Helen Year | 65 | Head | — | California |
| 44 | Barbara Perrine | 27 | Daughter | Bookkeeper | California |
| 45 | Ronald Perrine | 7 | Grand-son | — | California |
| 46 | John Harris | 25 | Head | Proprietor | California |
| 47 | William Harris | 40 | Son | Salesman | California |
| 48 | Irene Flynn | 45 | Daughter | Telephone Operator | California |
| 49 | William Flynn | 22 | Grand-son | Testing Apprentice | California |
| 50 | Charles Johnson | 59 | Head | Proprietor | Sweden |
| 51 | Nellie Johnson THIS PERSON | 57 | Wife | — | Sweden |
| 52 | Charles W Johnson | 28 | Son | Assistant Manager | California |
| 53 | Virginia Johnson | 26 | Daughter | Stenographer | California |
| 54 | James Logan | 74 | Head | — | Northern Ireland |
| 55 | Sarah Logan | 72 | Wife | — | Northern Ireland |
| 56 | Henry M Nash | 35 | Son-in-law | Electric Operator | Texas |
| 57 | Jennie Nash | 34 | Daughter | — | California |
| 58 | James L Nash | 7 | Grand-son | — | California |
| 59 | Jennie A Nash | 0 | Grand-daughter | — | California |
| 60 | Eugene L Boerner | 31 | Head | Chief-Clerk | California |
| 61 | Doris Boerner | 31 | Wife | — | California |
| 62 | Jeanne M Boerner | 10 | Daughter | — | California |
| 63 | David R Boerner | 3 | Son | — | California |
| 64 | Carol A Boerner | 1 | Daughter | — | California |
| 65 | Susan L Boerner | 0 | Daughter | — | California |
| 66 | Clara Reynolds | 61 | Mother-in-law | — | California |
| 67 | Clyde W Burbaker | 53 | Father | Stenographer | Colorado |
| 68 | Robert E Van Neper | 26 | Head | Bookkeeper | California |
| 69 | Bernice Van Neper | 23 | Wife | Graduate Nurse | Kansas |
| 70 | Valerie Van Neper | 0 | Son | — | California |
| 71 | Anna Van Neper | 56 | Mother | — | California |
| 72 | Thomas F Van Neper | 25 | Brother | Automobile Mechanic | California |
| 73 | Selma Reinertsen | 62 | Head | — | Sweden |
| 74 | Eleanor M Reinertsen | 33 | Daughter | Bookkeeper | California |
| 75 | Doris Reinertsen | 28 | Daughter | Policy Writer | California |
| 76 | William F Cronin | 26 | Head | Intern Nurse | California |
| 77 | Anita R Cronin | 26 | Wife | — | California |
| 78 | Frances L Cronin | 0 | Daughter | — | California |
| 79 | William Becker | 73 | Head | Pastry Baker | Germany |
| 80 | Herbert F Hail | 59 | Head | Linotype Operator | 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)