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Helen Hansen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · San-Mateo-County, California
Our Model Tree links this Helen Hansen across the 1930 and 1940 US Censuses in San-Mateo-County, California (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 10-person household.
Age 11
b. ~1929
Female
Daughter
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | San-Mateo-County, California |
| Surname | Hansen |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Mateo City |
| 1935 Residence (County) | San Mateo |
| Additional Details | |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | San Mateo City |
| Est. Birth Year | ~1929 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Rena Berin C | Spouse | — | 34 | ~1906 |
| Velma Berin C | Daughter | — | 4 | ~1936 |
| Helen Hansen | Daughter | — | 11 | ~1929 |
| Mary Hansen | Spouse | — | 47 | ~1893 |
| Dolores Hansen | Daughter | — | 8 | ~1932 |
| Amos Hansen | Head | — | 49 | ~1891 |
| Joseph Basso | Other | — | 33 | ~1907 |
| Arnold Hansen | Son | — | 13 | ~1927 |
| Head Berin C | Other | — | — | |
| Guido Berin C | Son | — | 9 | ~1931 |
Census Appearances
1930
San Mateo, …
Daughter, age 1
San Mateo, California · implied b. ~1929 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hansen |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Class of Worker | W |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
San-Mateo-County, California
Daughter, age 11
San-Mateo-County, California · implied b. ~1929 — 10 household members
| Surname | Hansen |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | San Mateo City |
| 1935 Residence (County) | San Mateo |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| 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 Helen Hansen across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Helen Hansen
Daughter · 1940 · age 11 · b. ~1929 · California
★ You are viewing this record
Sibling
Velma Berin C
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Guido Berin C
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arnold Hansen
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dolores Hansen
Sibling · 1940 · age 8
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 — San-Mateo-County, California
Open full size
1940 US Federal Census — San-Mateo-County, California
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00330-00273)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Donald Larke | 46 | Head | Manager | Minnesota |
| 42 | Eleanor Larke | 47 | Wife | — | Norway |
| 43 | Donald, Jr. Larke | 17 | Son | Helper | Oklahoma |
| 44 | Thomas H Larke | 15 | Son | Helper | Oklahoma |
| 45 | Basil Dickey | 34 | Head | Houseman | California |
| 46 | Cassie Dickey | 31 | Wife | — | Colorado |
| 47 | Alice Dickey | 5 | Daughter | — | California |
| 48 | James E Hazlett | 31 | Head | Accountant | California |
| 49 | Elizabeth Hazlett | 28 | Wife | Teacher | Texas |
| 50 | William Doyle | 32 | Head | Special Agent | Oregon |
| 51 | Amelia Doyle | 31 | Wife | — | Washington |
| 52 | Nivana Doyle | 2 | Daughter | — | Oregon |
| 53 | Cora Steigelman | 62 | Head | — | New York |
| 54 | Charles Leahy | 60 | Head | Proprietor | California |
| 55 | Araminta Leahy | 45 | Wife | — | Canada |
| 56 | Mary Jane Leahy | 17 | Daughter | — | California |
| 57 | Margaret Leahy | 15 | Daughter | — | California |
| 58 | Thomas Warren | 53 | Head | Iron Moulder | Scotland |
| 59 | Sarah Warren | 51 | Wife | — | California |
| 60 | Mildred Warren | 24 | Daughter | — | California |
| 61 | Amos Hansen | 49 | Head | Truck Driver | Denmark |
| 62 | Mary Hansen | 47 | Wife | — | Illinois |
| 63 | Arnold Jr. Hansen | 13 | Son | — | California |
| 64 | Helen Hansen THIS PERSON | 11 | Daughter | — | California |
| 65 | Dolores Hansen | 8 | Daughter | — | California |
| 67 | Head Berin, C. | None | M | Garage | Pa |
| 68 | Rena Berin, C. | 34 | Wife | — | Vermont |
| 69 | Guido Berin, C. | 9 | Son | — | California |
| 70 | Velma Berin, C. | 4 | Daughter | — | California |
| 71 | Joseph Basso | 33 | Brother in law | Gardener | Vermont |
| 72 | Victor Wuthrich | 48 | Head | — | France |
| 73 | Ruffine Wuthrich | 38 | Wife | — | France |
| 74 | Joseph Wuthrich | 15 | Son | — | California |
| 75 | Leil Wuthrich | 12 | Daughter | — | California |
| 76 | Harry Clayton | 49 | Head | Partner Bartender | Minnesota |
| 77 | Edna G. Clayton | 43 | Wife | — | California |
| 78 | Carol A Clayton | 2 | Daughter | — | California |
| 79 | Mary A Young | 71 | Head | — | California |
| 80 | George Young | 56 | Son | Painter | 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)