HJ
Helen Johnston — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Los-Angeles-County, California
Our Model Tree links this Helen Johnston across the 1930 and 1940 US Censuses in Los-Angeles-County, California (XGBoost, ~Confirmed) — first a daughter (b.~1919), then head of a 6-person household.
Age 21
b. ~1919
Female
Daughter
Born: Canada-English
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Los-Angeles-County, California |
| Surname | Johnston |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Canada-English |
| 1935 Residence (City) | Montebello City |
| 1935 Residence (County) | Los Angeles |
| Naturalization Status | Alien |
| Additional Details | |
| Occupation | Packer |
| Industry | Biscuit bakery |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 496 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birthplace (normalized) | canada-english |
| Occupation | Packer |
| Township / Ward | Montebello City |
| Est. Birth Year | ~1919 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Parker Johnston | Son | — | 17 | ~1923 |
| Harold Johnston | Son | — | 19 | ~1921 |
| Jean Johnston | Daughter | — | 24 | ~1916 |
| Helen Johnston | Daughter | — | 21 | ~1919 |
| Lloyd Johnston | Head | — | 51 | ~1889 |
| Gertrude Johnston | Spouse | — | 42 | ~1898 |
Census Appearances
1930
Los Angeles, …
Daughter, age 12
Los Angeles, California · implied b. ~1918 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnston |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Canada-English |
| Naturalization Status | Alien |
| Year of Immigration | 1922 |
| Father's Birthplace | Canada-English |
| Mother's Birthplace | Canada-English |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birthplace (normalized) | canada-english |
1940
Los-Angeles-County, California
Daughter, age 21
Los-Angeles-County, California · implied b. ~1919 — 6 household members
| Surname | Johnston |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Canada-English |
| 1935 Residence (City) | Montebello City |
| 1935 Residence (County) | Los Angeles |
| Naturalization Status | Alien |
| Occupation | Packer |
| Industry | Biscuit bakery |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 496 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birthplace (normalized) | canada-english |
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 Johnston across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Helen Johnston
Daughter · 1940 · age 21 · b. ~1919 · California
★ You are viewing this record
Sibling
Jean Johnston
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Parker Johnston
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harold Johnston
Sibling · 1940 · age 19
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 — Los-Angeles-County, California
Open full size
1940 US Federal Census — Los-Angeles-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00238-00184)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | E. Elton Pruitt | 67 | Lodger | Real Estate Salesman | Ohio |
| 2 | Philip Adams | 61 | Head | Well Worker | Ohio |
| 3 | Grace Adams | 59 | Wife | — | Iowa |
| 4 | Phyllis Adams | 21 | Daughter | — | Calif |
| 5 | Earl Mccorkle | 38 | Stepson | New Worker | Calif |
| 6 | Joe Halsey | 29 | Head | Truck Driver | Calif |
| 7 | Lucille Halsey | 23 | Wife | Cemetery Attendant | Calif |
| 8 | Joe Jr. Halsey | 2 | Son | — | Calif |
| 9 | Louis Ragus | 55 | Father-in-law | Grave Digger | Yugoslavia |
| 10 | Jack Ragus | 12 | Brother-in-law | — | Calif |
| 11 | Louis Jr. Ragus | 10 | Brother-in-law | — | Calif |
| 12 | Vian Gardner | 54 | Head | Gen Insurance | Penna |
| 13 | Minnie Gardner | 57 | Wife | — | Utah |
| 14 | Vian Gardner | 19 | Daughter | — | Calif |
| 15 | Nina Gardner | 77 | Head | — | Penna |
| 16 | Martha Morley | 54 | Head | — | Illinois |
| 17 | Evelyn Morley | 27 | Daughter | — | Calif |
| 18 | Helen Ney | 52 | Head | Apartment House Manager | Illinois |
| 19 | Harry A. Ney | 19 | Son | Riveting Machine Operator | Michigan |
| 20 | Robert W. Ney | 17 | Son | Soda Fountain Clerk | Michigan |
| 21 | Lloyd Johnston | 51 | Head | House Building Contractor | Canada-English |
| 22 | Gertrude Johnston | 42 | Wife | — | Canada-English |
| 23 | Jean Johnston | 24 | Daughter | — | Canada-English |
| 24 | Helen Johnston THIS PERSON | 21 | Daughter | Packer | Canada-English |
| 25 | Harold Johnston | 19 | Son | — | Canada-English |
| 26 | Parker Johnston | 17 | Son | — | Calif |
| 27 | John F. Lay | 30 | Head | Truck Driver | Arizona |
| 28 | Mary L. Lay | 26 | Wife | — | Texas |
| 29 | Franklin D. Lay | 7 | Son | — | Arizona |
| 30 | Rachel D. Lay | 5 | Daughter | — | Calif |
| 31 | Rachel Golden | 59 | Mother-in-law | — | Texas |
| 32 | James R. Millspaugh | 40 | Head | Salesman | Arkansas |
| 33 | Luella Millspaugh | 40 | Wife | — | Arkansas |
| 34 | Margaret C. Millspaugh | 18 | Daughter | Saleslady | Arkansas |
| 35 | Myrtha L. Millspaugh | 15 | Daughter | — | Calif |
| 36 | Janice M. Millspaugh | 5 | Daughter | — | Calif |
| 37 | Payton F. Murray | 52 | Head | Wholesale Salesman | Vermont |
| 38 | Anna Murray | 46 | Wife | — | New York |
| 39 | R. W. Dennis | 25 | Head | Refinery Operator | Illinois |
| 40 | Cecelia Dennis | 26 | Wife | — | Kansas |
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)