JH
John Howell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this John Howell across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Alleyne & Rosalie — first a son (b.~1919), then head of a 5-person household.
Age 21
b. ~1919
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Howell |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Clairton City |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Clairton City |
| Est. Birth Year | ~1919 |
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 |
|---|---|---|---|---|
| John Howell | Head | — | 51 | ~1889 |
| Bridget Howell | Other | — | 72 | ~1868 |
| Francis Howell | Son | — | 23 | ~1917 |
| John Howell | Son | — | 21 | ~1919 |
| Mary Howell | Spouse | — | 51 | ~1889 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age 2
Allegheny, Pennsylvania · implied b. ~1918 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Howell |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Son, age 13
Allegheny, Pennsylvania · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Howell |
| Given Name | John I. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Son, age 21
Allegheny-County, Pennsylvania · implied b. ~1919 — 5 household members
| Surname | Howell |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Clairton City |
| 1935 Residence (County) | Allegheny |
| Highest Grade | No 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 John Howell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Alleyne Howell (~0.92 confidence) and mother Rosalie Howell (~0.92 confidence) and father John Howell (~0.92 confidence) and mother Mary Howell (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Alleyne Howell
b. ~1876
Source father
● Household
· direct · ~0.92
Mother
Rosalie Howell
b. ~1882
Source mother
● Household
· direct · ~0.92
Father
John Howell
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Mary Howell
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Howell
Son · 1940 · age 21 · b. ~1919 · Pennsylvania
★ You are viewing this record
Sibling
Francis Howell
Sibling · 1940 · age 23
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-t0627-03400-00457)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mattie Robinson | 14 | Daughter | — | Pennsylvania |
| 2 | Harry Robinson | 13 | Son | — | Pennsylvania |
| 3 | Nathaniel Robinson | 10 | Son | — | Pennsylvania |
| 4 | Mary Robinson | 6 | Daughter | — | Pennsylvania |
| 5 | Rosemary Robinson | 5 | Daughter | — | Pennsylvania |
| 6 | Regina Robinson | 4 | Daughter | — | Pennsylvania |
| 7 | Clarence Jr. Robinson | 2 | Son | — | Pennsylvania |
| 8 | Paul Kuhn | 37 | Head | Policeman | Pennsylvania |
| 9 | Olive Kuhn | 33 | Wife | — | Pennsylvania |
| 10 | Marilyn Kuhn | 11 | Daughter | — | Pennsylvania |
| 11 | Gwendolyn Kuhn | 7 | Daughter | — | Pennsylvania |
| 12 | Paul Jr. Kuhn | 4 | Son | — | Pennsylvania |
| 13 | John Howell | 51 | Head | Laborer | Pennsylvania |
| 14 | Mary Howell | 51 | Wife | — | West Virginia |
| 15 | Francis Howell | 23 | Son | Laborer | Pennsylvania |
| 16 | John Jr. Howell THIS PERSON | 21 | Son | — | Pennsylvania |
| 17 | Bridget Howell | 72 | Sister in law | — | Pennsylvania |
| 18 | Edward Penney | 51 | Head | Undertaker | Pennsylvania |
| 19 | May Penney | 51 | Wife | — | Pennsylvania |
| 20 | Harriett Matthews | 48 | Niece | — | Pennsylvania |
| 21 | Anthony Depardo | 27 | Lodger | Mortician | Pennsylvania |
| 22 | Robert Davis | 51 | Lodger | Clerk | Pennsylvania |
| 23 | Volant Snyder | 43 | Lodger | Supervisor | Ohio |
| 24 | Max Spadef | 59 | Head | — | Russia |
| 25 | Rose Spadef | 31 | Wife | — | Canada English |
| 26 | Hilda Spadef | 12 | Daughter | — | Pennsylvania |
| 27 | Andrew Labruce | 32 | Lodger | Operator | Pennsylvania |
| 28 | Mathias Chovan | 57 | Head | Blacksmith | Slovakia |
| 29 | Mary Chovan | 51 | Wife | — | Pennsylvania |
| 30 | John Chovan | 20 | Son | — | Pennsylvania |
| 31 | Albert Chovan | 14 | Son | — | Pennsylvania |
| 32 | James Sullivan | 58 | Head | Office | Germany |
| 33 | Charlotte Sullivan | 57 | Wife | — | Pennsylvania |
| 34 | Mary Sullivan | 30 | Daughter | — | Pennsylvania |
| 35 | Joan Curry | 10 | Grandchild | — | Pennsylvania |
| 36 | Marie Curry | 7 | Grandchild | — | Pennsylvania |
| 37 | Francis Curry | 5 | Grandchild | — | Pennsylvania |
| 38 | John Brendza | 57 | Head | Electrician | Slovakia |
| 39 | Helen Brendza | 41 | Wife | — | Slovakia |
| 40 | Helen Brendza | 17 | Daughter | — | Pennsylvania |
Pedigree Summary
John + 1 sibling
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 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)