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Elizabeth Johnston — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Elizabeth Johnston across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 6-person household.
Age 12
b. ~1928
Female
Daughter
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Johnston |
| Given Name | Elizabeth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Mt. Lebanon |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Highest Grade | G 6 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Mt Lebanon |
| Est. Birth Year | ~1928 |
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 Elizabeth | Age | Birth yr |
|---|---|---|---|---|
| Blanche Johnston | Son | — | 18 | ~1922 |
| William Johnston | Son | — | 15 | ~1925 |
| Virgil Johnston | Head | — | 36 | ~1904 |
| Blanche Johnston | Spouse | — | 36 | ~1904 |
| Virgil Johnston | Son | — | 13 | ~1927 |
| Elizabeth Johnston | Daughter | — | 12 | ~1928 |
Census Appearances
1930
Allegheny, Pennsylvania
Daughter, age 2
Allegheny, Pennsylvania · implied b. ~1928 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnston |
| Given Name | Elizabeth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Daughter, age 12
Allegheny-County, Pennsylvania · implied b. ~1928 — 6 household members
| Surname | Johnston |
| Given Name | Elizabeth |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Mt. Lebanon |
| 1935 Residence (County) | Allegheny |
| Highest Grade | G 6 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 Elizabeth Johnston across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Elizabeth Johnston
Daughter · 1940 · age 12 · b. ~1928 · Pennsylvania
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Sibling
Virgil Johnston
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Johnston
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Blanche Johnston
Sibling · 1940 · 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
1940 US Federal Census — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03411-00810)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Fritz Carl Blaum | 43 | Head | Mech. Engineer | Germany |
| 42 | Elsa Blaum | 40 | Wife | — | Germany |
| 43 | Hilda Blaum | 10 | Daughter | — | Pennsylvania |
| 44 | John Humphreys | 37 | Head | Med. Doctor | Pennsylvania |
| 45 | Marjorie Humphreys | 38 | Wife | — | Pennsylvania |
| 46 | John Humphreys | 9 | Son | — | Pennsylvania |
| 47 | Robert Humphreys | 6 | Son | — | Pennsylvania |
| 48 | Arthur Humphreys | 3 | Son | — | Pennsylvania |
| 49 | Dorothy Cenovich | 19 | Servant | Housekeeper | Pennsylvania |
| 50 | Richard Dudley | 36 | Head | Manager | Pennsylvania |
| 51 | Dorothy Dudley | 34 | Wife | — | Illinois |
| 52 | Richard Jr. Dudley | 4 | Son | — | Pennsylvania |
| 53 | Eugene Lay | 35 | Head | Elect. Engineer | Pennsylvania |
| 54 | Jane Lay | 37 | Wife | — | Maryland |
| 55 | Carolyn Lay | 9 | Daughter | — | Pennsylvania |
| 56 | Eugene Jr. Lay | 4 | Son | — | Pennsylvania |
| 57 | Howard T. Wise | 45 | Head | Railway Clerk | Pennsylvania |
| 58 | Ruth R. Wise | 43 | Wife | — | Pennsylvania |
| 59 | Pauline M. Wise | 39 | Sister-in-law | Clerk | Pennsylvania |
| 60 | Virgil Johnston | 36 | Head | President | Pennsylvania |
| 61 | Blanche Johnston | 36 | Wife | — | Pennsylvania |
| 62 | Virgil Johnston | 13 | Son | Contact Man | Pennsylvania |
| 63 | Blanche Johnston | 18 | Son | — | Pennsylvania |
| 64 | William Johnston | 15 | Son | — | Pennsylvania |
| 65 | Elizabeth Johnston THIS PERSON | 12 | Daughter | — | Pennsylvania |
| 66 | John Mecham | 40 | Head | Clerk | Pennsylvania |
| 67 | Marie Mecham | 38 | Wife | — | Pennsylvania |
| 68 | Alice Mecham | 18 | Daughter | — | Pennsylvania |
| 69 | John Jr. Mecham | 16 | Son | Service Station | Pennsylvania |
| 70 | Arthur Hinder | 27 | Head | — | Pennsylvania |
| 71 | Helen Hinder | 26 | Wife | — | Pennsylvania |
| 72 | Harrison Lucent | 28 | Head | Realtor | Pennsylvania |
| 73 | Elizabeth Lucent | 21 | Wife | Clerk | Pennsylvania |
| 74 | Walter Robo | 48 | Head | Sales Manager | Michigan |
| 75 | Rose Robo | 50 | Wife | — | E. Canada |
| 76 | Walter Jr. Robo | 14 | Son | — | Michigan |
| 77 | Rose Robo | 8 | Daughter | — | Pennsylvania |
| 78 | Joseph Theis | 47 | Head | Clerk Office | Pennsylvania |
| 79 | Norman Boggs | 42 | Head | — | Pennsylvania |
| 80 | Florence Boggs | 41 | Wife | — | Pennsylvania |
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)