JC
John Charles — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this John Charles across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 5-person household.
Age 17
b. ~1923
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Charles |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Highest Grade | H 3 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Pittsburgh |
| Est. Birth Year | ~1923 |
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 |
|---|---|---|---|---|
| Lillian Charles | Head | — | 54 | ~1886 |
| John Charles | Son | — | 17 | ~1923 |
| Lucy Charles | Daughter | — | 16 | ~1924 |
| Marie Charles | Daughter | — | 20 | ~1920 |
| Lemuel Charles | Son | — | 11 | ~1929 |
Census Appearances
1930
Allegheny, Pennsylvania
Son, age 6
Allegheny, Pennsylvania · implied b. ~1924 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carlos |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Son, age 17
Allegheny-County, Pennsylvania · implied b. ~1923 — 5 household members
| Surname | Charles |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Highest Grade | H 3 |
| 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 John Charles across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Charles
Son · 1940 · age 17 · b. ~1923 · Pennsylvania
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Sibling
Lucy Charles
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marie Charles
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lemuel Charles
Sibling · 1940 · age 11
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-t0627-03653-00237)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Donald Perrucci | 10 | Son | — | Pennsylvania |
| 2 | Francis Perrucci | 10 | Son | — | Pennsylvania |
| 3 | James Holmes | 64 | Head | Laborer | Tennessee |
| 4 | Leila Holmes | 59 | Wife | — | Tennessee |
| 5 | Alpha S. Russell | 37 | Head | — | Florida |
| 6 | Kenneth Russell | 17 | Son | — | Pennsylvania |
| 7 | Everett Russell | 9 | Son | — | Pennsylvania |
| 8 | Augustus Bagby | 35 | Lodger | Laborer | Pennsylvania |
| 9 | Le Roy Mcdowell | 49 | Head | Laborer | California |
| 10 | Sara Mcdowell | 49 | Wife | — | Same place |
| 11 | Lucille Mcdowell | 24 | Daughter | — | Maryland |
| 12 | George Washington | 50 | Head | Machine Operator | Virginia |
| 13 | Elizabeth Washington | 35 | Wife | — | Kentucky |
| 14 | Betty Iddings | 12 | Daughter | — | W. Virginia |
| 15 | John D. Warren | 42 | Head | Broom Maker | Mississippi |
| 16 | Maggie Warren | 37 | Wife | — | Mississippi |
| 17 | Lillian Charles | 54 | Head | — | Virginia |
| 18 | Marie Charles | 20 | Daughter | Artist | Pennsylvania |
| 19 | John Charles THIS PERSON | 17 | Son | — | Pennsylvania |
| 20 | Lucy Charles | 16 | Daughter | — | Pennsylvania |
| 21 | Lemuel Charles | 11 | Son | — | Virginia |
| 22 | Mary Taliaferro | 45 | Head | House Maid | Alabama |
| 23 | Mildred Taliaferro | 15 | Daughter | — | Ohio |
| 24 | Adam Johnson | 52 | Head | Laborer | Georgia |
| 25 | Lottie Johnson | 39 | Wife | — | Georgia |
| 26 | Albert Stenetz | 61 | Head | Trucker | Poland |
| 27 | Victoria Stenetz | 46 | Wife | — | Poland |
| 28 | Stanley Stenetz | 26 | Son | Laborer | Pennsylvania |
| 29 | Frank Stenetz | 24 | Son | Laborer | Pennsylvania |
| 30 | Frederick Stenetz | 21 | Son | Trucker Helper | Pennsylvania |
| 31 | Leo Stenetz | 18 | Son | — | Pennsylvania |
| 32 | Helen Stenetz | 16 | Daughter | — | Pennsylvania |
| 33 | Anna Stenetz | 13 | Daughter | — | Pennsylvania |
| 34 | John Stenetz | 10 | Son | — | Pennsylvania |
| 35 | Joseph Stenetz | 7 | Son | — | Pennsylvania |
| 36 | Anthony Stenetz | 3 | Son | — | Pennsylvania |
| 37 | Jacob Brzezinski | 49 | Head | Laborer | Poland |
| 38 | Antonia Brzezinski | 48 | Wife | Wrecker | Poland |
| 39 | Victoria Brzezinski | 20 | Daughter | — | Pennsylvania |
| 40 | Bertha Brzezinski | 17 | Daughter | New Worker | Pennsylvania |
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)