CJ
Carl Jones — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this Carl Jones across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 9-person household.
Age 13
b. ~1927
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Jones |
| Given Name | Carl |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Pittsburgh |
| Est. Birth Year | ~1927 |
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 1940 census.
| Name | Relation to head | Relative to Carl | Age | Birth yr |
|---|---|---|---|---|
| Esther Jones | Daughter | — | 11 | ~1929 |
| Mary Jones | Daughter | — | 18 | ~1922 |
| Carl Jones | Son | — | 13 | ~1927 |
| Helen Jones | Daughter | — | 15 | ~1925 |
| Eugene Jones | Son | — | 5 | ~1935 |
| Henry Guthrie | Other | — | 21 | ~1919 |
| James Jones | Head | — | 39 | ~1901 |
| Mary Britian | Other | — | 35 | ~1905 |
| Oliver Jones | Son | — | 8 | ~1932 |
Census Appearances
1930
Allegheny, Pennsylvania
Son, age 3
Allegheny, Pennsylvania · implied b. ~1927 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jones |
| Given Name | Carl |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Son, age 13
Allegheny-County, Pennsylvania · implied b. ~1927 — 9 household members
| Surname | Jones |
| Given Name | Carl |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Highest Grade | H 4 |
| 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 Carl Jones across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Carl Jones
Son · 1940 · age 13 · b. ~1927 · Pennsylvania
★ You are viewing this record
Sibling
Mary Jones
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eugene Jones
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Esther Jones
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Oliver Jones
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Jones
Sibling · 1940 · age 15
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-t0627-03660-00578)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Geraldine Frandozzi | 23 | Head | M-24 | Pennsylvania |
| 2 | Mahala Jones | 67 | Mother | — | Pennsylvania |
| 3 | Clara Blue | 45 | Daughter | 12 | Pennsylvania |
| 4 | Mildred Blue | 19 | Granddaughter | Waitress | Pennsylvania |
| 5 | Henry Green | 39 | Boarder | Laborer | Pennsylvania |
| 6 | John Cooper | 45 | Boarder | Janitor | Pennsylvania |
| 7 | Purcell Smith | 42 | Head | Laborer | Virginia |
| 8 | Mable Smith | 42 | Wife | — | Virginia |
| 9 | Lillian Garnet | 26 | Lodger | Maid | Pennsylvania |
| 10 | Sarah Porter | 32 | Lodger | Maid | Pennsylvania |
| 11 | Dolly Lamar | 57 | Mother | — | Georgia |
| 12 | Lillian Lamar | 18 | Daughter | — | Pennsylvania |
| 13 | Edwina Lamar | 15 | Daughter | — | Pennsylvania |
| 14 | Louise Lamar | 14 | Daughter | — | Pennsylvania |
| 15 | Charles Lamar | 13 | Son | — | Pennsylvania |
| 16 | Leah Burrell | 83 | Lodger | — | Georgia |
| 17 | Elvira Chatham | 36 | Lodger | — | Georgia |
| 18 | James Jones | 39 | Head | Molder | Virginia |
| 19 | Mary Jones | 18 | Daughter | — | Pennsylvania |
| 20 | Helen Jones | 15 | Daughter | — | Pennsylvania |
| 21 | Carl Jones THIS PERSON | 13 | Son | — | Pennsylvania |
| 22 | Esther Jones | 11 | Daughter | — | Pennsylvania |
| 23 | Oliver Jones | 8 | Son | — | Pennsylvania |
| 24 | Eugene Jones | 5 | Son | — | Pennsylvania |
| 25 | Henry Guthrie | 21 | Brother | Clerk | Pennsylvania |
| 26 | Mary Britian | 35 | — | Janitress | Virginia |
| 27 | Rod Coleman | 40 | Head | — | Virginia |
| 28 | Joseph Coleman | 22 | Son | Printer | Virginia |
| 29 | Christine Coleman | 13 | Daughter | — | — |
| 30 | Louise Baltimore | 27 | Daughter-in-law | Laborer | Virginia |
| 31 | Theresa Baltimore | 18 | Daughter | — | Washington DC |
| 32 | Sylvester White | 15 | Adopted Son | — | Washington DC |
| 33 | James Glasco | 72 | Head | — | Maryland |
| 34 | Sarah Glasco | 67 | Wife | — | Maryland |
| 35 | Susan Elders | 36 | Daughter | Waitress | Pennsylvania |
| 36 | Allen Williamson | 14 | Nephew | — | Pennsylvania |
| 37 | Kenneth Williamson | 12 | Nephew | — | Pennsylvania |
| 38 | Jeannie Williamson | 9 | Niece | — | Pennsylvania |
| 39 | Norma Williamson | 7 | Niece | — | Pennsylvania |
| 40 | Henry Williams | 42 | Head | Laborer | Georgia |
Related Census Records
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)