CJ
Christina Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Alameda-County, California
Our Model Tree links this Christina Johnson across the 1930 and 1940 US Censuses in Alameda-County, California (XGBoost, ~Confirmed) — first a spouse (b.~1892), then head of a 7-person household.
Age 48
b. ~1892
Female
Spouse
Born: Denmark
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Alameda-County, California |
| Surname | Johnson |
| Given Name | Christina |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Denmark |
| 1935 Residence (City) | Berkeley |
| 1935 Residence (County) | Alameda |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Beauty Operator |
| Industry | Beauty Shop |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 700 |
| Highest Grade | 8 |
| 1935 Residence | California |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
| Occupation | Beauty Operator |
| Township / Ward | Ashland |
| Est. Birth Year | ~1892 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Christina | Age | Birth yr |
|---|---|---|---|---|
| Christina Johnson | Spouse | — | 48 | ~1892 |
| Ellen Johnson | Daughter | — | 26 | ~1914 |
| Fred Johnson | Head | — | 47 | ~1893 |
| Bernard Johnson | Son | — | 14 | ~1926 |
| Fred Johnson | Son | — | 18 | ~1922 |
| Virginia Johnson | Daughter | — | 25 | ~1915 |
| Marie Johnson | Daughter | — | 22 | ~1918 |
Census Appearances
1930
Alameda, California
Other, age 38
Alameda, California · implied b. ~1892 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Christina E |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Denmark |
| Naturalization Status | Naturalized |
| Year of Immigration | 1910 |
| Age at First Marriage | 21 |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | none |
| Can Read/Write | Yes |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
1940
Alameda-County, California
Spouse, age 48
Alameda-County, California · implied b. ~1892 — 7 household members
| Surname | Johnson |
| Given Name | Christina |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Denmark |
| 1935 Residence (City) | Berkeley |
| 1935 Residence (County) | Alameda |
| Naturalization Status | Naturalized |
| Occupation | Beauty Operator |
| Industry | Beauty Shop |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 700 |
| Highest Grade | 8 |
| 1935 Residence | California |
| Birth Country | Denmark |
| Birthplace (normalized) | denmark |
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 Christina Johnson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Christina Johnson
Spouse · 1940 · age 48 · b. ~1892 · 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 — Alameda-County, California
Open full size
1940 US Federal Census — Alameda-County, California
Page Contents
33 people indexed on this census page (nara:1940:m-t0627-00445-00335)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 42 | Claude S. Shade | 57 | Head | Valuator | Nebraska |
| 43 | Dorothy L. Shade | 52 | Wife | — | Nebraska |
| 44 | Carlton D. Shade | 27 | Son | Service Station Operator | California |
| 46 | William E. Riggs | 66 | Head | Painter | Delaware |
| 47 | S. May Riggs | 58 | Wife | — | Delaware |
| 48 | Edith Job | 54 | Head | Trained Nurse | South Wales |
| 49 | Julia Luman | 79 | Lodger | — | California |
| 50 | William S. Little | 74 | Lodger | — | England |
| 51 | Charles Lowe | 70 | Lodger | — | Ohio |
| 52 | Victor J. Devantier | 62 | Head | Carpenter | Wisconsin |
| 53 | Elizabeth A. Devantier | 52 | Wife | — | California |
| 54 | L. A. Heis | 31 | Son-in-law | 0 | Nebraska |
| 55 | Florence M. Heis | 27 | Daughter | — | California |
| 57 | Joseph P. Freelyman | 60 | Head | Electrical Engineer | Pennsylvania |
| 58 | Clara B. Freelyman | 56 | Wife | — | Delaware |
| 59 | Martha E. Freelyman | 22 | Daughter | New Worker | California |
| 61 | David I. Harris | 48 | Head | Legal Research | New Jersey |
| 62 | Harriet E. Harris | 51 | Wife | — | Maryland |
| 63 | Helen Kotschinski | 23 | Lodger | Saleswoman | California |
| 65 | Fred O. Johnson | 47 | Head | Night Watchman | Denmark |
| 66 | Christina Johnson THIS PERSON | 48 | Wife | Beauty Operator | Denmark |
| 67 | Ellen H. Johnson | 26 | Daughter | Beauty Operator | Minnesota |
| 68 | Virginia S. Johnson | 25 | Daughter | Beauty Operator | Minnesota |
| 69 | Marie B. Johnson | 22 | Daughter | Beauty Operator | Minnesota |
| 70 | Fred E. Johnson | 18 | Son | — | California |
| 71 | Bernard B. Johnson | 14 | Son | — | California |
| 73 | Annie B. Tucker | 66 | Head | — | Illinois |
| 74 | Blanche Tucker | 61 | Sister | — | Illinois |
| 75 | Beulah P. M. Tucker | 70 | Sister | — | Illinois |
| 77 | Rosemary E. Berger | 49 | Head | — | Colorado |
| 78 | Margaret A. Berger | 20 | Daughter | — | Colorado |
| 79 | Rosemary E. Berger | 16 | Daughter | — | Colorado |
| 80 | Augustus B. Berger | 15 | Son | — | Colorado |
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)