HJ
Harry Johnston — 1930 US Census Record
Model Tree available1930 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this Harry Johnston across the 1910, 1920 and 1930 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed), with identified parents Aaron & William — first a son (b.~1904), then head of a 4-person household.
Age 26
b. ~1904
Male
Son
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Allegheny, Pennsylvania |
| Surname | Johnston |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Chauffeur |
| Industry | Taxi |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Chauffeur |
| Township / Ward | Pittsburgh City |
| Est. Birth Year | ~1904 |
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 1930 census.
| Name | Relation to head | Relative to Harry | Age | Birth yr |
|---|---|---|---|---|
| William Johnston | Head | — | 66 | ~1864 |
| Elizabeth Johnston | Daughter | — | 22 | ~1908 |
| Harry Johnston | Son | — | 26 | ~1904 |
| Edward Johnston | Son | — | 15 | ~1915 |
Census Appearances
1910
Allegheny, Pennsylvania
Son, age 3
Allegheny, Pennsylvania · implied b. ~1907 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnston |
| Given Name | Howard |
| 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 |
1920
Allegheny, Pennsylvania
Son, age 14
Allegheny, Pennsylvania · implied b. ~1906 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnston |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Son, age 26
Allegheny, Pennsylvania · implied b. ~1904 — 4 household members
| Surname | Johnston |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Chauffeur |
| Industry | Taxi |
| Class of Worker | W |
| Can Read/Write | Yes |
| 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 Harry Johnston across 3 US Census years (1910, 1920 and 1930) in Allegheny, Pennsylvania, using XGBoost record linkage. Identified parents: father Aaron Johnston (~0.92 confidence) and father William Johnston (~0.92 confidence) and father William Johnston (~0.92 confidence) and mother Annie Johnston (~0.92 confidence) and mother Helena Johnston (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Aaron Johnston
b. ~1871
Source father
● Household
· direct · ~0.92
Father
William Johnston
b. ~1882
Source father
● Household
· direct · ~0.92
Father
William Johnston
b. ~1864
Source father
● Household
· direct · ~0.92
Mother
Annie Johnston
b. ~1869
Source mother
● Household
· direct · ~0.92
Mother
Helena Johnston
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harry Johnston
Son · 1930 · age 26 · b. ~1904 · Pennsylvania
★ You are viewing this record
Sibling
Edward Johnston
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Johnston
Sibling · 1930 · age 22
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
1930 US Federal Census — Allegheny, Pennsylvania
Open full size
1930 US Federal Census — Allegheny, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel1985:0226)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Erzen | 44 | Head | Carpenter | Austria |
| 2 | Agnes Erzen | 35 | Wife | — | Austria |
| 3 | Alice Erzen | 7 | Daughter | — | Pennsylvania |
| 4 | John W. Erzen | 4 | Son | — | Pennsylvania |
| 5 | Francis Erzen | 2 | Daughter | — | Pennsylvania |
| 6 | Martha Erzen | 1 | Daughter | — | Pennsylvania |
| 7 | Molly Jones | 65 | Head | — | Virginia |
| 8 | Granville Squires | 52 | Boarder | — | Virginia |
| 9 | Mike Wogrin | 52 | Head | Laborer | Yugoslavia |
| 10 | Anna Wogrin | 42 | Wife | Laborer | Yugoslavia |
| 11 | Henry Wogrin | 15 | Son | — | Pennsylvania |
| 12 | Anna Wogrin | 14 | Daughter | — | Pennsylvania |
| 13 | Frederick Wogrin | 12 | Son | — | Pennsylvania |
| 14 | Louis Wogrin | 10 | Son | — | Pennsylvania |
| 15 | Edward Wogrin | 3 | Son | — | Pennsylvania |
| 16 | Joseph Mackovitch | 46 | Head | Machinist | Austria |
| 17 | Mary Mackovitch | 39 | Wife | — | Austria |
| 18 | Elizabeth Mackovitch | 13 | Daughter | — | Pennsylvania |
| 19 | Margaret Mackovitch | 12 | Daughter | — | Pennsylvania |
| 20 | Joseph Jr. Mackovitch | 11 | Son | — | Pennsylvania |
| 21 | William Dickler | 65 | Head | Watchman | Maryland |
| 22 | Emma Dickler | 63 | Wife | — | Pennsylvania |
| 23 | Lesley Carr | 27 | Head | Laborer | West Virginia |
| 24 | Mary Carr | 24 | Wife | — | West Virginia |
| 25 | Charles Carr | 5 | Son | — | West Virginia |
| 26 | Wallace Carr | 3 | Son | — | West Virginia |
| 27 | Lillian Carr | 0 | Daughter | — | Pennsylvania |
| 28 | Alex Burkhart | 54 | Head | Painter | Pennsylvania |
| 29 | Lizzie Burkhart | 49 | Wife | — | Pennsylvania |
| 30 | Anthony Hein | 29 | Head | Foreman | Pennsylvania |
| 31 | Christina Hein | 26 | Wife | — | Pennsylvania |
| 32 | Helen Hein | 4 | Daughter | — | Pennsylvania |
| 33 | Harry Huskey | 44 | Head | Proprietor | Pennsylvania |
| 34 | Emma Huskey | 40 | Wife | — | Pennsylvania |
| 35 | Edward Huskey | 9 | Son | — | Pennsylvania |
| 36 | William Johnston | 66 | Head | — | Pennsylvania |
| 37 | Harry Johnston THIS PERSON | 26 | Son | Chauffeur | Pennsylvania |
| 38 | Elizabeth Johnston | 22 | Daughter | Machinist | Pennsylvania |
| 39 | Edward Johnston | 15 | Son | — | Pennsylvania |
| 40 | Thomas Schwarzhuber | 39 | Head | Driver | Pennsylvania |
| 41 | Florence Schwarzhuber | 27 | Wife | — | Pennsylvania |
| 42 | Selma Schwarzhuber | 12 | Daughter | — | Pennsylvania |
| 43 | Clara Schwarzhuber | 11 | Daughter | — | Pennsylvania |
| 44 | Thomas Schwarzhuber | 10 | Son | — | Pennsylvania |
| 45 | Bertha Schwarzhuber | 6 | Daughter | — | Pennsylvania |
| 46 | Albert Schwarzhuber | 3 | Son | — | Pennsylvania |
| 47 | Ralph Schwarzhuber | 1 | Son | — | Pennsylvania |
| 48 | Harry Schwarzhuber | 0 | Son | — | Pennsylvania |
| 49 | Arthur Brockelbank | 60 | Head | Cutter | New York |
| 50 | Anna Brockelbank | 58 | Wife | — | Pennsylvania |
Pedigree Summary
Harry + 2 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)