CJ
Charles Johnston — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this Charles Johnston across the 1910, 1920 and 1930 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1881), then head of a 9-person household.
Age 49
b. ~1881
Male
Head
Born: Pennsylvania
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Allegheny, Pennsylvania |
| Surname | Johnston |
| Given Name | Charles H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 28 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Merchant |
| Industry | Electric Motors |
| Class of Worker | E |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 12,000 |
| Radio Set | R |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Merchant |
| Township / Ward | Pittsburgh City |
| Est. Birth Year | ~1881 |
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.
9 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Charles | Age | Birth yr |
|---|---|---|---|---|
| Marie Johnston | Daughter | — | 18 | ~1912 |
| Barbara Johnston | Daughter | — | 19 | ~1911 |
| Patricia Johnston | Daughter | — | 12 | ~1918 |
| Sara Johnston | Daughter | — | 16 | ~1914 |
| Charles Johnston | Head | — | 49 | ~1881 |
| Barbara Johnston | Other | — | 41 | ~1889 |
| Martha Thompson | Other | — | 21 | ~1909 |
| Mary Price | Other | — | 74 | ~1856 |
| Charles Johnston | Son | — | 21 | ~1909 |
Census Appearances
1910
Allegheny, Pennsylvania
Head, age 30
Allegheny, Pennsylvania · implied b. ~1880 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnston |
| Given Name | Charles D |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Years Married | 6 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Typewriter |
| Industry | Printing |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Allegheny, Pennsylvania
Head, age 39
Allegheny, Pennsylvania · implied b. ~1881 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnston |
| Given Name | Charles H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Merchant |
| Industry | electrical sup |
| Class of Worker | E |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Head, age 49
Allegheny, Pennsylvania · implied b. ~1881 — 9 household members
| Surname | Johnston |
| Given Name | Charles H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 28 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Merchant |
| Industry | Electric Motors |
| Class of Worker | E |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 12,000 |
| Radio Set | R |
| 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 Charles Johnston across 3 US Census years (1910, 1920 and 1930) in Allegheny, Pennsylvania, using XGBoost record linkage.
Show:
This person
Anchor record
Charles Johnston
Head · 1930 · age 49 · b. ~1881 · Pennsylvania
★ You are viewing this record
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
14 people indexed on this census page (ia:1930:fifteenthcensus00reel1988:0629)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles H. Johnston THIS PERSON | 49 | Head | Merchant | Pennsylvania |
| 2 | Barbara M. Johnston | 41 | Wife-H | — | Pennsylvania |
| 3 | Charles B. Johnston | 21 | Son | Salesman | Pennsylvania |
| 4 | Barbara E. Johnston | 19 | Daughter | Secretary | Pennsylvania |
| 5 | Marie E. Johnston | 18 | Daughter | — | Pennsylvania |
| 6 | Sara J. Johnston | 16 | Daughter | — | Pennsylvania |
| 7 | Patricia Johnston | 12 | Daughter | — | Pennsylvania |
| 8 | Mary C. Price | 74 | Mother | — | Ohio |
| 9 | Martha B. Thompson | 21 | Niece | Training Nurse | Pennsylvania |
| 10 | Caroline F. Geiger | 53 | Head-H | — | West Virginia |
| 11 | Ferdinand Geiger | 24 | Son | Partner | Pennsylvania |
| 12 | Elizabeth Geiger | 21 | Daughter | Saleslady | Pennsylvania |
| 13 | Marjorie Geiger | 19 | Daughter | Typist | Pennsylvania |
| 14 | Harold Geiger | 17 | Son | Partner | Pennsylvania |
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)