HJ
Helen Johnston — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Trumbull-County, Ohio
Our Model Tree links this Helen Johnston across the 1930 and 1940 US Censuses in Trumbull-County, Ohio (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 6-person household.
Age 17
b. ~1923
Female
Daughter
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Trumbull-County, Ohio |
| Surname | Johnston |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Warren |
| 1935 Residence (County) | Trumbull |
| Additional Details | |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Warren |
| Est. Birth Year | ~1923 |
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 |
|---|---|---|---|---|
| Helen Johnston | Daughter | — | 17 | ~1923 |
| Anton Johnston | Head | — | 47 | ~1893 |
| Robert Johnston | Son | — | 16 | ~1924 |
| William Johnston | Son | — | 13 | ~1927 |
| Mary Johnston | Spouse | — | 36 | ~1904 |
| Lillian Johnston | Daughter | — | 15 | ~1925 |
Census Appearances
1930
Trumbull, Ohio
Daughter, age 7
Trumbull, Ohio · implied b. ~1923 — 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 | 7 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Trumbull-County, Ohio
Daughter, age 17
Trumbull-County, Ohio · implied b. ~1923 — 6 household members
| Surname | Johnston |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Warren |
| 1935 Residence (County) | Trumbull |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 17 · b. ~1923 · Ohio
★ You are viewing this record
Sibling
William Johnston
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Johnston
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lillian Johnston
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 — Trumbull-County, Ohio
Open full size
1940 US Federal Census — Trumbull-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03156-00335)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Sally J Broadhurst | 7 | Daughter | — | Ohio |
| 42 | Judith Broadhurst | 1 | Daughter | — | Ohio |
| 43 | Asa G Jacobs | 58 | Head | — | Ohio |
| 44 | Ray Jacobs | 39 | Son | Laborer | Ohio |
| 45 | Ray Jr Jacobs | 13 | Grandson | — | Ohio |
| 46 | Maurice Jacobs | 37 | Son | Salesmanager | Ohio |
| 47 | Thelma Jacobs | 38 | Daughter-in-law | — | Ohio |
| 48 | Carol Jane Jacobs | 1 | Granddaughter | — | Ohio |
| 49 | Ward F Leiley | 34 | Head | Off Clerk | Ohio |
| 50 | Myrtle M Leiley | 34 | Wife | Clerk | Missouri |
| 51 | Hattie Hamon | 74 | Head | — | Ohio |
| 52 | Mary A Lash | 64 | Housekeeper | Housekeeper | Ohio |
| 53 | Beni Jr Shackelford | 27 | Head | Mechanic | Ohio |
| 54 | Dorothy Shackelford | 26 | Wife | Clerk | Ohio |
| 55 | Harold O'Malley | 24 | Head | Clerk | Ohio |
| 56 | Ruth O'Malley | 20 | Wife | — | Ohio |
| 57 | Thomas John O'Malley | 1 | Son | — | Ohio |
| 58 | Anton Johnston | 47 | Head | Painter | Finland |
| 59 | Mary Johnston | 36 | Wife | — | Ohio |
| 60 | Helen Johnston THIS PERSON | 17 | Daughter | — | Ohio |
| 61 | Robert Johnston | 16 | Son | Painter'S Apprentice | Ohio |
| 62 | Lillian Johnston | 15 | Daughter | — | Ohio |
| 63 | William Johnston | 13 | Son | — | Ohio |
| 64 | Harold Heller | 27 | Head | Display Manager | Michigan |
| 65 | Ruth Heller | 21 | Wife | — | Pennsylvania |
| 66 | Marjorie Heller | 0 | Daughter | — | Ohio |
| 67 | Harry Powell | 55 | Head | Mill Wright | Pennsylvania |
| 68 | Alice Hyder | 56 | Housekeeper | — | New York |
| 69 | George Reighert | 28 | Head | Buggy Man On Strip | Pennsylvania |
| 70 | Betty Reighert | 27 | Wife | — | Ohio |
| 71 | Margaret Reighert | 4 | Daughter | — | Ohio |
| 72 | John Craig | 71 | Head | — | Ohio |
| 73 | Amy Craig | 70 | Wife | — | Ohio |
| 74 | Robert M Brown | 49 | Son-in-law | Vice-President | Ohio |
| 75 | Lucy Brown | 47 | Daughter | — | Ohio |
| 76 | Jeannette Brown | 21 | Granddaughter | — | Ohio |
| 77 | Robert C Brown | 18 | Grandson | Mail Boy | Ohio |
| 78 | John C Lewis | 78 | Brother-in-law | — | Ohio |
| 79 | Homer Currence | 50 | Head | Laborer | West Virginia |
| 80 | Ollie Currence | 42 | Wife | — | West Virginia |
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)