HG
Helen Gray — 1940 US Census Record
Model Tree available1940 United States Federal Census · Sacramento-County, California
Our Model Tree links this Helen Gray across the 1920, 1930 and 1940 US Censuses in Sacramento-County, California (XGBoost, ~Confirmed), with identified parents Fred & George — first a daughter (b.~1905), then head of a 3-person household.
Age 35
b. ~1905
Female
Daughter
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Sacramento-County, California |
| Surname | Gray |
| Given Name | Helen W. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Sacramento |
| 1935 Residence (County) | Sacramento |
| Additional Details | |
| Occupation | School teacher |
| Industry | Public school |
| Class of Worker | PW |
| Income (1939) | 2352 |
| Highest Grade | C-4 |
| 1935 Residence | Same place |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Teacher |
| Township / Ward | Sacramento |
| Est. Birth Year | ~1905 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Mattie Gray | Spouse | — | 63 | ~1877 |
| George Gray | Head | — | 64 | ~1876 |
| Helen Gray | Daughter | — | 35 | ~1905 |
Census Appearances
1920
Sacramento, California
Daughter, age 15
Sacramento, California · implied b. ~1905 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gray |
| Given Name | Helen W |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Sacramento, California
Daughter, age 25
Sacramento, California · implied b. ~1905 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gray |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Occupation | Teacher |
| Industry | Public School |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Sacramento-County, California
Daughter, age 35
Sacramento-County, California · implied b. ~1905 — 3 household members
| Surname | Gray |
| Given Name | Helen W. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Sacramento |
| 1935 Residence (County) | Sacramento |
| Occupation | School teacher |
| Industry | Public school |
| Class of Worker | PW |
| Income (1939) | 2352 |
| Highest Grade | C-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 Gray across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Fred Gray (~0.92 confidence) and father George Gray (~0.92 confidence) and father George Gray (~0.92 confidence) and mother Mattie Gray (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Fred Gray
b. ~1876
Source father
● Household
· direct · ~0.92
Father
George Gray
b. ~1876
Source father
● Household
· direct · ~0.92
Father
George Gray
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Mattie Gray
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Helen Gray
Daughter · 1940 · age 35 · b. ~1905 · California
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Sacramento-County, California
Open full size
1940 US Federal Census — Sacramento-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00283-00491)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Elsie J. O'Brian | 61 | Wife | Housework | California |
| 42 | Claire M. O'Brian | 36 | Daughter | School Teacher | California |
| 43 | Wilhelmina Dutra | 56 | Head | Housework | California |
| 44 | Marcel E. Dutra | 21 | Son | Salesman | California |
| 45 | June L. Dutra | 18 | Daughter-in-law | Housewife | California |
| 46 | Frank R. Dutra | 24 | Son | Medical Student | California |
| 47 | Anthony J. Dutra | 29 | Head | Radiator Repair | California |
| 48 | Dorothy L. Dutra | 24 | Wife | Housewife | California |
| 49 | Grace Schmidt | 52 | Head | Reg. Nurse | California |
| 50 | Curtis Schmidt | 28 | Son | Attending School | California |
| 51 | Frederick Schmidt | 21 | Son | Attending School | California |
| 52 | Alice K. Russell | 40 | Sister | Practical Nurse | California |
| 53 | Bernita F. Russell | 15 | Niece | Attending School | California |
| 54 | Jerome V. Russell | 13 | Nephew | — | California |
| 55 | Eugene W. Warner | 47 | Roomer | Lineman | New York |
| 56 | Lolita May Kalil | 19 | Roomer | Bookkeeper | North Dakota |
| 57 | Verne Lewis | 46 | Head | Police Officer | California |
| 58 | Vera M. Lewis | 44 | Wife | Housewife | California |
| 59 | George Fred Gray | 64 | Head | Locomotive Engineer | California |
| 60 | Mattie Ann V. Gray | 63 | Wife | Housewife | California |
| 61 | Helen W. Gray THIS PERSON | 35 | Daughter | School Teacher | California |
| 62 | John W. Scott | 66 | Head | Janitor | Missouri |
| 63 | Sarah E. Scott | 64 | Wife | Housewife | Alabama |
| 64 | George A. Fraser | 56 | Head | Mechanical Engr. | Canada |
| 65 | Mary M. Fraser | 45 | Wife | Housewife | Canada |
| 66 | George Jr. Fraser | 24 | Son | Car Builder | Canada |
| 67 | Muriel M. Fraser | 22 | Daughter | Reg. Nurse | Canada |
| 68 | Ray O. Fraser | 20 | Son | Machinist Appr. | Canada |
| 69 | Barbara J. Fraser | 13 | Daughter | — | California |
| 70 | Edwin J. Dudycka | 31 | Head | Clerk | Nebraska |
| 71 | Josephine Dudycka | 22 | Wife | Housewife | California |
| 72 | Elton L. Durbin | 42 | Head | Bartender | California |
| 73 | Marian L. Durbin | 34 | Wife | Housewife | California |
| 74 | Elta J. Durbin | 12 | Daughter | — | California |
| 75 | Dennis L. Durbin | 5 | Son | — | California |
| 76 | Carey Simons | 71 | Head | Housework | Michigan |
| 77 | Alice Meld | 70 | Head | Housewife | England |
| 78 | Elmer W. Howard | 46 | Head | Owner Auto. Body & Fender Shop | Arkansas |
| 79 | Tenie M. Howard | 42 | Wife | Housewife | Colorado |
| 80 | Ida May Birch | 22 | Daughter | Housework | Utah |
Pedigree Summary
Helen
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)