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John Black — 1940 US Census Record
Model Tree available1940 United States Federal Census · Armstrong-County, Pennsylvania
Our Model Tree links this John Black across the 1920, 1930 and 1940 US Censuses in Armstrong-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents John & Tom — first a son (b.~1912), then head of a 5-person household.
Age 28
b. ~1912
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Armstrong-County, Pennsylvania |
| Surname | Black |
| Given Name | John W. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Manorville Borough |
| 1935 Residence (County) | Armstrong |
| Additional Details | |
| Occupation | Machinist helper |
| Class of Worker | PW |
| Hours Worked | 200 |
| Income (1939) | 99 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Machinist Helper |
| Township / Ward | Manorville Borough |
| Est. Birth Year | ~1912 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Nina Black | Daughter | — | 21 | ~1919 |
| Edna Black | Daughter | — | 14 | ~1926 |
| John Black | Head | — | 60 | ~1880 |
| John Black | Son | — | 28 | ~1912 |
| Rose Black | Spouse | — | 53 | ~1887 |
Census Appearances
1920
Armstrong, Pennsylvania
Son, age 7
Armstrong, Pennsylvania · implied b. ~1913 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Black |
| Given Name | John W. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Armstrong, Pennsylvania
Son, age 17
Armstrong, Pennsylvania · implied b. ~1913 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Black |
| Given Name | John W. Jr. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| 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
Armstrong-County, Pennsylvania
Son, age 28
Armstrong-County, Pennsylvania · implied b. ~1912 — 5 household members
| Surname | Black |
| Given Name | John W. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Manorville Borough |
| 1935 Residence (County) | Armstrong |
| Occupation | Machinist helper |
| Class of Worker | PW |
| Hours Worked | 200 |
| Income (1939) | 99 |
| Highest Grade | H 4 |
| 1935 Residence | Same house |
| 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 John Black across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Black (~0.92 confidence) and father Tom Black (~0.92 confidence) and father John Black (~0.92 confidence) and mother Rose Black (~0.92 confidence) and mother Rose Black (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Black
b. ~1880
Source father
● Household
· direct · ~0.92
Father
Tom Black
b. ~1881
Source father
● Household
· direct · ~0.92
Father
John Black
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Rose Black
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Rose Black
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Black
Son · 1940 · age 28 · b. ~1912 · Pennsylvania
★ You are viewing this record
Sibling
Edna Black
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nina Black
Sibling · 1940 · age 21
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 — Armstrong-County, Pennsylvania
Open full size
1940 US Federal Census — Armstrong-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03424-00120)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Esther A. Brown | 48 | Wife | — | Pennsylvania |
| 2 | William C. Brown | 21 | Son | New Worker | Pennsylvania |
| 3 | Howard W. Brown | 19 | Son | — | Pennsylvania |
| 4 | Charles W. Burkhart | 61 | Head | Box Maker | Pennsylvania |
| 5 | John H. Black | 60 | Head | Laborer | Pennsylvania |
| 6 | Rose E. Black | 53 | Wife | — | Pennsylvania |
| 7 | John W. Jr. Black THIS PERSON | 28 | Son | Machinist Helper | Pennsylvania |
| 8 | Nina C. Black | 21 | Daughter | Stenographer | Pennsylvania |
| 9 | Edna M. Black | 14 | Daughter | — | Pennsylvania |
| 10 | David King | 24 | Head | Laborer | Pennsylvania |
| 11 | Margaret King | 21 | Wife | — | Pennsylvania |
| 12 | George King | 19 | Brother | — | Pennsylvania |
| 13 | John King | 17 | Brother | — | Pennsylvania |
| 14 | Frank King | 14 | Brother | — | Pennsylvania |
| 15 | Robert Berry | 10 | Half brother | — | Pennsylvania |
| 16 | John C. O'Brien | 27 | Head | Glassworker | England |
| 17 | Jean O'Brien | 27 | Wife | — | Kentucky |
| 18 | John F. O'Brien | 1 | Son | — | Pennsylvania |
| 19 | James Crossman | 29 | Head | Shipping Clerk | Pennsylvania |
| 20 | Bonita Crossman | 28 | Wife | — | Pennsylvania |
| 21 | James J. Jr. Crossman | 4 | Son | — | Pennsylvania |
| 22 | Bonnie Crossman | 2 | Daughter | — | Pennsylvania |
| 23 | John Crayle | 56 | Head | Carpenter | Pennsylvania |
| 24 | Pearl Crayle | 55 | Wife | — | Pennsylvania |
| 25 | Glenda Crayle | 27 | Daughter | Saleslady | Pennsylvania |
| 26 | Charles H. Coffman | 50 | Head | Millwright | Pennsylvania |
| 27 | Helen Coffman | 43 | Wife | — | Pennsylvania |
| 28 | Jack Coffman | 23 | Son | Salesman | Pennsylvania |
| 29 | Quentin Coffman | 21 | Son | New Worker | Pennsylvania |
| 30 | James Coffman | 80 | Head | — | Pennsylvania |
| 31 | Orville Klingensmith | 41 | Head | Lehr Tender | Pennsylvania |
| 32 | Velma Klingensmith | 41 | Wife | — | Ohio |
| 33 | Billy Jane Klingensmith | 20 | Daughter | New Worker | Pennsylvania |
| 34 | James O. Klingensmith | 17 | Son | New Worker | Pennsylvania |
| 35 | Velma Mae Klingensmith | 13 | Daughter | — | Pennsylvania |
| 36 | Bertha D. Klingensmith | 11 | Daughter | — | Pennsylvania |
| 37 | Robert E. Klingensmith | 7 | Son | — | Pennsylvania |
| 38 | Delores Marlene Klingensmith | 2 | Daughter | — | Pennsylvania |
| 39 | John Ansley | 59 | Head | Janitor | Pennsylvania |
| 40 | Lloyd Henry Wright | 29 | Head | Plasterer | Pennsylvania |
Pedigree Summary
John + 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 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)