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Helen Moore — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Riverside-County, California
Our Model Tree links this Helen Moore across the 1930 and 1940 US Censuses in Riverside-County, California (XGBoost, ~Confirmed) — first a son (b.~1924), then head of a 12-person household.
Age 16
b. ~1924
Male
Son
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Riverside-County, California |
| Surname | Moore |
| Given Name | Helen |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Montebello |
| 1935 Residence (County) | Los Angeles |
| Additional Details | |
| Occupation | Dairy Worker |
| Industry | Dairy |
| Class of Worker | NP |
| Hours Worked | 52 |
| Highest Grade | H 4 |
| 1935 Residence | California |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Dairy Worker |
| Township / Ward | Temescal Township |
| Est. Birth Year | ~1924 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Helen Moore | Daughter | — | 17 | ~1923 |
| Marie Moore | Daughter | — | 26 | ~1914 |
| Maggie Moore | Daughter | — | 19 | ~1921 |
| Simon Moore | Head | — | 60 | ~1880 |
| Peter Vandermeulen | Other | — | 7 | ~1933 |
| Johanna Vandermeulen | Other | — | 4 | ~1936 |
| Helen Moore | Son | — | 16 | ~1924 |
| John Moore | Son | — | 24 | ~1916 |
| Daniel Moore | Son | — | 25 | ~1915 |
| George Moore | Son | — | 15 | ~1925 |
| Harry Moore | Son | — | 27 | ~1913 |
| Marie Moore | Spouse | — | 56 | ~1884 |
Census Appearances
1930
Riverside, California
Son, age 6
Riverside, California · implied b. ~1924 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mores |
| Given Name | Helaines |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Mexican |
| Age | 6 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Mexico |
| Mother's Birthplace | Mexico |
| Can Read/Write | No |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Riverside-County, California
Son, age 16
Riverside-County, California · implied b. ~1924 — 12 household members
| Surname | Moore |
| Given Name | Helen |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Montebello |
| 1935 Residence (County) | Los Angeles |
| Occupation | Dairy Worker |
| Industry | Dairy |
| Class of Worker | NP |
| Hours Worked | 52 |
| Highest Grade | H 4 |
| 1935 Residence | California |
| 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 Moore across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Helen Moore
Son · 1940 · age 16 · b. ~1924 · California
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Sibling
Marie Moore
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Maggie Moore
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harry Moore
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Moore
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daniel Moore
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Moore
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Moore
Sibling · 1940 · age 15
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 — Riverside-County, California
Open full size
1940 US Federal Census — Riverside-County, California
Page Contents
34 people indexed on this census page (nara:1940:m-t0627-00279-00381)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Charles L. Harris | 37 | Head | Labor | New York |
| 42 | Gladys M. Harris | 25 | Wife | — | New York |
| 43 | Charles L. Jr. Harris | 5 | Son | — | New York |
| 44 | Natalie B. Harris | 4 | Daughter | — | New York |
| 45 | Adeline West | 65 | Head | — | Canada |
| 46 | Nellie H. West | 43 | Son | — | California |
| 47 | Esther R. West | 27 | Daughter-in-law | — | Washington |
| 48 | Eleanor West | 8 | Granddaughter | — | California |
| 49 | Billy West | 6 | Grandson | — | California |
| 50 | Lloyd Shipman | 36 | Head | Farm Hand | Oklahoma |
| 51 | Myrtle Shipman | 34 | Wife | — | Oklahoma |
| 52 | Simon Moore | 60 | Head | Rancher | Holland |
| 53 | Marie M. Moore | 56 | Wife | — | Holland |
| 54 | Harry Moore | 27 | Son | Rancher | California |
| 55 | Marie Moore | 26 | Daughter | Dairy Worker | California |
| 56 | Daniel Moore | 25 | Son | Rancher | California |
| 57 | John Moore | 24 | Son | Milker | California |
| 58 | Maggie Moore | 19 | Daughter | Dairy Worker | California |
| 59 | Helen Moore | 17 | Daughter | Dairy Worker | California |
| 60 | Helen Moore THIS PERSON | 16 | Son | Dairy Worker | California |
| 61 | George Moore | 15 | Son | — | Washington |
| 62 | Johanna Vandermeulen | 4 | Granddaughter | — | California |
| 63 | Peter Vandermeulen | 7 | Grandson | — | California |
| 64 | Tyrell A. Baker | 51 | Head | Rancher | Texas |
| 65 | Bertha Baker | 51 | Wife | — | Mississippi |
| 66 | Harold P. Mencer | 36 | Head | Truck Driver | Indiana |
| 67 | Edna M. Mencer | 33 | Wife | Cook Turkeys | Arkansas |
| 68 | George W. Mencer | 13 | Son | — | California |
| 69 | Louise Lee Mencer | 11 | Daughter | — | Arkansas |
| 70 | Joe V. Ashcraft | 50 | Head | Rancher | Arkansas |
| 71 | C. Louise Ashcraft | 50 | Wife | — | California |
| 72 | James Voss | 7 | Nephew | — | California |
| 73 | Virginia Voss | 6 | Niece | — | California |
| 74 | Patricia Ashcraft | 1 | Daughter | — | 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)