RB
Robert Black — 1920 US Census Record
Model Tree available1920 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this Robert Black across the 1900, 1910 and 1920 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed), with identified parents John & Mary — first a head (b.~1893), then head of a 3-person household.
Age 27
b. ~1893
Male
Head
Born: Pennsylvania
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Allegheny, Pennsylvania |
| Surname | Black |
| Given Name | Robert J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Stock Clerk |
| Industry | Ford Motor Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Stock Clerk |
| Township / Ward | Pittsburgh |
| Est. Birth Year | ~1893 |
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.
3 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Black | Head | — | 27 | ~1893 |
| Robert Black | Son | — | 1 | ~1919 |
| Emily Black | Spouse | — | 24 | ~1896 |
Census Appearances
1900
Allegheny, Pennsylvania
Son, age 7
Allegheny, Pennsylvania · implied b. ~1893 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Black |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Birth Month | June |
| Birth Year | 1893 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1910
Allegheny, Pennsylvania
Son, age 16
Allegheny, Pennsylvania · implied b. ~1894 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Black |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Trimmer |
| Industry | Helper |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Allegheny, Pennsylvania
Head, age 27
Allegheny, Pennsylvania · implied b. ~1893 — 3 household members
| Surname | Black |
| Given Name | Robert J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Stock Clerk |
| Industry | Ford Motor Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | 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 Robert Black across 3 US Census years (1900, 1910 and 1920) in Allegheny, Pennsylvania, using XGBoost record linkage. Identified parents: father John Black (~0.92 confidence) and mother Mary Black (~0.92 confidence) and father Oliver Black (~0.92 confidence) and mother Maggie Black (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Black
b. ~1856
Source father
● Household
· direct · ~0.92
Mother
Mary Black
b. ~1859
Source mother
● Household
· direct · ~0.92
Father
Oliver Black
b. ~1859
Source father
● Household
· direct · ~0.92
Mother
Maggie Black
b. ~1861
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Black
Head · 1920 · age 27 · b. ~1893 · Pennsylvania
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Allegheny, Pennsylvania
Open full size
1920 US Federal Census — Allegheny, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1521unit:0744)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary Porter | 49 | Head | — | Pennsylvania |
| 2 | Bessie Porter | 26 | Daughter | — | Pennsylvania |
| 3 | Joseph Porter | 18 | Son | — | Pennsylvania |
| 4 | Robert J. Black THIS PERSON | 27 | Head | Stock Clerk | Pennsylvania |
| 5 | Emily Black | 24 | Wife | — | Pennsylvania |
| 6 | Robert J. Black | 1 | Son | — | Pennsylvania |
| 7 | William Parker | 31 | Head | — | Pennsylvania |
| 8 | Rose Parker | 20 | Wife | — | Pennsylvania |
| 9 | Eleanor Parker | 1 | Daughter | — | Pennsylvania |
| 10 | William P. Parker | 0 | Son | — | Pennsylvania |
| 11 | Olga Bergquist | 24 | Sister-in-law | Supervisor | Pennsylvania |
| 12 | Ethel Gustafson | 20 | Boarder | Operator | Pennsylvania |
| 13 | Albert Johnson | 37 | Head | — | Sweden |
| 14 | Anna Johnson | 37 | Wife | — | Pennsylvania |
| 15 | Earl B. Johnson | 10 | Son | — | Pennsylvania |
| 16 | James H. Johnson | 8 | Son | — | Pennsylvania |
| 17 | Robert Johnson | 22 | Brother-in-law | — | Pennsylvania |
| 18 | Albert E. White | 37 | Head | Iron Worker | North Carolina |
| 19 | Fannie White | 26 | Wife | — | Virginia |
| 20 | Cora May White | 8 | Daughter | — | Pennsylvania |
| 21 | Jr. Albert A. White | 3 | Son | — | Pennsylvania |
| 22 | Fannie White | 1 | Daughter | — | Pennsylvania |
| 23 | Richard Stokes | 60 | Boarder | — | North Carolina |
| 24 | Oscar Peterson | 32 | Head | — | Sweden |
| 25 | Anna Peterson | 31 | Wife | — | Sweden |
| 26 | Harry Peterson | 5 | Son | — | Pennsylvania |
| 27 | Herbert Peterson | 3 | Son | — | Pennsylvania |
| 28 | Ellen Peterson | 1 | Daughter | — | Pennsylvania |
| 29 | Conrad Schmidt | 58 | Head | — | United States |
| 30 | Geneva Schmidt | 11 | Daughter | — | Pennsylvania |
| 31 | Alberta Schmidt | 9 | Daughter | — | Pennsylvania |
| 32 | Barbara Kranger | 47 | Head | — | Austria |
| 33 | Arthur Kranger | 19 | Son | — | Pennsylvania |
| 34 | Louis Kranger | 17 | Son | — | Pennsylvania |
| 35 | Frank J. Barry | 45 | Head | — | Pennsylvania |
| 36 | Irma Barry | 40 | Wife | — | Pennsylvania |
| 37 | Frank B. Barry | 21 | Son | — | Pennsylvania |
| 38 | John R. Barry | 18 | Son | — | Pennsylvania |
| 39 | William S. Ely | 24 | Head | Foreman | Pennsylvania |
| 40 | Helen Ely | 24 | Wife | — | Pennsylvania |
| 41 | Geo W. Ely | 1 | Son | — | Pennsylvania |
| 42 | Frank Vitale | 38 | Head | Contractor | Italy |
| 43 | Filomena Vitale | 41 | Wife | — | Italy |
| 44 | Alba Vitale | 7 | Daughter | — | Pennsylvania |
| 45 | Jennie Iscallo | 2 | Grand Daughter | — | Pennsylvania |
| 46 | Nazareno Fonduti | 48 | Head | Painter | Italy |
| 47 | Anna Fonduti | 41 | Wife | — | Italy |
| 48 | Joseph Finley | 36 | Head | Painter | Pennsylvania |
| 49 | Jr. Joseph Finley | 6 | Son | — | Pennsylvania |
| 50 | Mary Finley | 4 | Daughter | — | Pennsylvania |
Pedigree Summary
Robert
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 1920 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)