GJ
George Johnston — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this George Johnston across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents James & Charles — first a son (b.~1917), then head of a 4-person household.
Age 23
b. ~1917
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Johnston |
| Given Name | George Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Plum Twp. |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | driller |
| Industry | coal mine |
| Class of Worker | PW |
| Hours Worked | 21 |
| Income (1939) | 1435 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Driller |
| Township / Ward | Plum Twp |
| Est. Birth Year | ~1917 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to George | Age | Birth yr |
|---|---|---|---|---|
| Isabelle Johnston | Daughter | — | 18 | ~1922 |
| George Johnston | Head | — | 44 | ~1896 |
| George Johnston | Son | — | 23 | ~1917 |
| Joseph Johnston | Son | — | 10 | ~1930 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age 3
Allegheny, Pennsylvania · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnston |
| Given Name | George |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Son, age 13
Allegheny, Pennsylvania · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnston |
| Given Name | George B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Son, age 23
Allegheny-County, Pennsylvania · implied b. ~1917 — 4 household members
| Surname | Johnston |
| Given Name | George Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Plum Twp. |
| 1935 Residence (County) | Allegheny |
| Occupation | driller |
| Industry | coal mine |
| Class of Worker | PW |
| Hours Worked | 21 |
| Income (1939) | 1435 |
| Highest Grade | Hs 4 |
| 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 George Johnston across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Johnston (~0.92 confidence) and father Charles Johnston (~0.92 confidence) and mother Jennie Johnston (~0.92 confidence) and father George Johnston (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Johnston
b. ~1874
Source father
● Household
· direct · ~0.92
Father
Charles Johnston
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Jennie Johnston
b. ~1880
Source mother
● Household
· direct · ~0.92
Father
George Johnston
b. ~1896
Source father
● Household
· direct · ~0.92
This person
Anchor record
George Johnston
Son · 1940 · age 23 · b. ~1917 · Pennsylvania
★ You are viewing this record
Sibling
Joseph Johnston
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Isabelle 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-t0627-03415-00182)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | George E. Devore | 30 | Head | Motorman | Pennsylvania |
| 2 | Nellie A. Devore | 32 | Wife | — | Pennsylvania |
| 3 | Betty Lou Devore | 3 | Daughter | — | Pennsylvania |
| 4 | Patricia Ann Devore | 0 | Daughter | — | Pennsylvania |
| 5 | Matthew Jr. Raunicher | 44 | Head | Machinist Helper | Germany |
| 6 | Anna S. Raunicher | 43 | Wife | — | Pennsylvania |
| 7 | Albert S. Raunicher | 21 | Son | Motorman | Pennsylvania |
| 8 | Mildred Raunicher | 18 | Daughter | New Worker | Pennsylvania |
| 9 | Thomas H. Telford | 28 | Head | Snapper | England |
| 10 | Edna D. Telford | 26 | Wife | — | England |
| 11 | George Stiner | 29 | Head | Motorman | Pennsylvania |
| 12 | Mary S. Stiner | 26 | Wife | — | Pennsylvania |
| 13 | George R. Stiner | 1 | Son | — | Pennsylvania |
| 14 | William Stiner | 27 | Boarder | Motorman | Pennsylvania |
| 15 | Pete D. Bolovski | 39 | Head | Timber Man | Pennsylvania |
| 16 | Mary Bolovski | 34 | Wife | — | Czechoslovakia |
| 17 | Mary Bolovski | 12 | Daughter | — | Pennsylvania |
| 18 | Helen Bolovski | 11 | Daughter | — | Pennsylvania |
| 19 | Joseph Bolovski | 10 | Son | — | Pennsylvania |
| 20 | George Bolovski | 8 | Son | — | Pennsylvania |
| 21 | Irene M. Bolovski | 6 | Daughter | — | Pennsylvania |
| 22 | Anna Bolovski | 5 | Daughter | — | Pennsylvania |
| 23 | William Bolovski | 2 | Son | — | Pennsylvania |
| 24 | George A. Johnston | 44 | Head | Carpenter | Pennsylvania |
| 25 | George Jr. Johnston THIS PERSON | 23 | Son | Driller | Pennsylvania |
| 26 | Isabelle Johnston | 18 | Daughter | — | Pennsylvania |
| 27 | Joseph Johnston | 10 | Son | — | Pennsylvania |
| 28 | Joseph Tisler | 51 | Head | Track Layer | Hungary |
| 29 | Kathryn Tisler | 50 | Wife | — | Hungary |
| 30 | Mitchell Tisler | 24 | Son | Assistant Machine Runner | Pennsylvania |
| 31 | James Stallers | 33 | Head | Motorman | Pennsylvania |
| 32 | Vera D. Stallers | 25 | Wife | — | Pennsylvania |
| 33 | James Stallers | 3 | Son | — | Pennsylvania |
| 34 | Joyce E. Stallers | 1 | Daughter | — | Pennsylvania |
| 35 | Michael Spisak | 47 | Head | Power Man | Pennsylvania |
| 36 | Lydia D. Spisak | 47 | Wife | — | Pennsylvania |
| 37 | Steve Vargo | 58 | Head | Loader | Hungary |
| 38 | Kathryn Vargo | 44 | Wife | — | Hungary |
| 39 | Steve Vargo | 21 | Son | Loader | Pennsylvania |
| 40 | Julia Vargo | 19 | Daughter | Maid | Pennsylvania |
Pedigree Summary
George + 2 siblings
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)