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Helen Nelson — 1930 US Census Record
Model Tree available1930 United States Federal Census · Alameda, California
Our Model Tree links this Helen Nelson across the 1920, 1930 and 1940 US Censuses in Alameda, California (XGBoost, ~Confirmed), with identified parents Lars & Hilda — first a daughter (b.~1914), then head of a 5-person household.
Age 16
b. ~1914
Female
Daughter
Born: California
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Alameda, California |
| Surname | Nelson |
| Given Name | Helen B |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Oakland |
| Est. Birth Year | ~1914 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Helen Nelson | Daughter | — | 16 | ~1914 |
| Noah Nelson | Head | — | 45 | ~1885 |
| Jenny Nelson | Other | — | 42 | ~1888 |
| Alvin Nelson | Son | — | 10 | ~1920 |
| Carl Nelson | Son | — | 18 | ~1912 |
Census Appearances
1920
Alameda, California
Daughter, age 6
Alameda, California · implied b. ~1914 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nelson |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | none |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Alameda, California
Daughter, age 16
Alameda, California · implied b. ~1914 — 5 household members
| Surname | Nelson |
| Given Name | Helen B |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Alameda-County, California
Spouse, age 27
Alameda-County, California · implied b. ~1913 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nilsson |
| Given Name | Helen E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | California |
| 1935 Residence (City) | Oakland |
| 1935 Residence (County) | Alameda |
| Highest Grade | Hs 4 |
| 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 Nelson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Lars Nelson (~0.92 confidence) and mother Hilda Nelson (~0.92 confidence) and father Noah Nelson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Lars Nelson
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Hilda Nelson
b. ~1883
Source mother
● Household
· direct · ~0.92
Father
Noah Nelson
b. ~1885
Source father
● Household
· direct · ~0.92
This person
Anchor record
Helen Nelson
Daughter · 1930 · age 16 · b. ~1914 · California
★ You are viewing this record
Sibling
Alvin Nelson
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carl Nelson
Sibling · 1930 · age 18
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
1930 US Federal Census — Alameda, California
Open full size
1930 US Federal Census — Alameda, California
Page Contents
50 people indexed on this census page (ia:1930:15thcensuspopula106unit:0576)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | George B Cramer | 3 | Son | — | California |
| 2 | Noah B Nelson | 45 | Head | Carpenter | Sweden |
| 3 | Jenny P Nelson | 42 | Wife-H | — | Sweden |
| 4 | Carl B Nelson | 18 | Son | Laborer | California |
| 5 | Helen B Nelson THIS PERSON | 16 | Daughter | — | California |
| 6 | Alvin D Nelson | 10 | Son | — | California |
| 7 | Joseph A Noble | 46 | Head | Salesman | Honolulu |
| 8 | Mary A Noble | 42 | Wife-H | — | Honolulu |
| 9 | Joseph A Jr Noble | 26 | Son | Salesman | Honolulu |
| 10 | Lorraine M Noble | 25 | Daughter-in-law | — | California |
| 11 | Lorraine M Noble | 4 | Gd Daughter | — | California |
| 12 | Albert Miraglia | 34 | Head | Tailor | Italy |
| 13 | Nancy Miraglia | 23 | Wife-H | — | Portugal |
| 14 | Fred L Squires | 35 | Head | Electrician | Illinois |
| 15 | Lauretta A Squires | 30 | Wife-H | — | Nebraska |
| 16 | Alvin F Squires | 3 | Son | — | California |
| 17 | August H Hofmann | 60 | Head | Carpenter | Germany |
| 18 | Gustava Hofmann | 50 | Wife-H | — | Denmark |
| 19 | Anton Hinrichsen | 45 | Head | Ice Cream Maker | Denmark |
| 20 | Margaretha Hinrichsen | 43 | Wife-H | — | Germany |
| 21 | Edith M Hinrichsen | 15 | Daughter | — | California |
| 22 | — | None | — | — | — |
| 23 | Rudolf L Gillard | 24 | Head | Brick Mason | Germany |
| 24 | Charlotte M Gillard | 23 | Wife-H | Nurse, Registered | Germany |
| 25 | Floyd W Heffron | 22 | Head | Pharmacist | Oklahoma |
| 26 | Winifred C Heffron | 20 | Wife-H | — | California |
| 27 | Sidney J Harris | 50 | Head | Carpenter | England |
| 28 | Walter George | 54 | Head | Proprietor | England |
| 29 | May G George | 44 | Wife-H | — | England |
| 30 | — | None | — | — | — |
| 31 | — | None | — | — | — |
| 32 | Fred L Radke | 28 | Head | Laborer | Washington |
| 33 | Tillie Radke | 23 | Wife-H | — | Kansas |
| 34 | Maxine H Radke | 4 | Daughter | — | California |
| 35 | Allen W Finley | 8 | Nephew | — | Idaho |
| 36 | Arthur G Finley | 4 | Nephew | — | Idaho |
| 37 | Nora J George | 59 | Head | — | Illinois |
| 38 | Mary B George | 23 | Daughter-H | Ingraver | California |
| 39 | Mikel W George | 26 | Son | Laborer | California |
| 40 | Avelain George | 25 | Daughter-in-law | — | California |
| 41 | Avelain George | 2 | Gd-Daughter | — | California |
| 42 | Johnson | 33 | Head | Machinist | California |
| 43 | Lillian Johnson | 37 | Wife-H | — | Ohio |
| 44 | Wilbur Johnson | 13 | Son | — | Idaho |
| 45 | Harold A Pederson | 43 | Head | Machinist | Norway |
| 46 | Margaret L Pederson | 32 | Wife-H | — | Texas |
| 47 | Russell L Pederson | 5 | Son | — | California |
| 48 | Reece E Walker | 45 | Head | Foreman | Kansas |
| 49 | Lottie M Walker | 44 | Wife-H | — | California |
| 50 | — | None | — | — | — |
Pedigree Summary
Helen + 2 siblings
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 1930 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)