JK
John Kelley — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this John Kelley across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Wesley & Elizabeth — first a son (b.~1910), then head of a 4-person household.
Age 30
b. ~1910
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Kelley |
| Given Name | John W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Avalon Boro |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Cost Clerk |
| Industry | Steel Mill |
| Class of Worker | PW |
| Income (1939) | 1000 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Cost Clerk |
| Township / Ward | Avalon Boro |
| Est. Birth Year | ~1910 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Wesley Kelley | Head | — | 68 | ~1872 |
| Ralph Kelley | Son | — | 28 | ~1912 |
| John Kelley | Son | — | 30 | ~1910 |
| Elizabeth Kelley | Spouse | — | 68 | ~1872 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age 9
Allegheny, Pennsylvania · implied b. ~1911 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kelley |
| Given Name | John W |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Son, age 20
Allegheny, Pennsylvania · implied b. ~1910 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kelley |
| Given Name | John W |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| 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
Allegheny-County, Pennsylvania
Son, age 30
Allegheny-County, Pennsylvania · implied b. ~1910 — 4 household members
| Surname | Kelley |
| Given Name | John W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Avalon Boro |
| 1935 Residence (County) | Allegheny |
| Occupation | Cost Clerk |
| Industry | Steel Mill |
| Class of Worker | PW |
| Income (1939) | 1000 |
| Highest Grade | Hs 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 Kelley across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Wesley Kelley (~0.92 confidence) and mother Elizabeth Kelley (~0.92 confidence) and mother Elizabeth Kelley (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Wesley Kelley
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Elizabeth Kelley
b. ~1872
Source mother
● Household
· direct · ~0.92
Mother
Elizabeth Kelley
b. ~1872
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Kelley
Son · 1940 · age 30 · b. ~1910 · Pennsylvania
★ You are viewing this record
Sibling
Ralph Kelley
Sibling · 1940 · age 28
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
38 people indexed on this census page (nara:1940:m-t0627-03397-00198)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Reiner Reiner | 24 | Step | Salesman | Pennsylvania |
| 42 | Chuck Herbert | 21 | Step-son | Salesman | Pennsylvania |
| 44 | Edward J. Thomas | 67 | Head | — | Pennsylvania |
| 45 | Ida Thomas | 69 | Wife | — | Pennsylvania |
| 46 | Ruth Thomas | 40 | Daughter | Stenographer | Pennsylvania |
| 47 | Charles F. Fleming | 54 | Head | Laborer | Germany |
| 48 | Minnie A. (X) Fleming | 45 | Wife | — | Pennsylvania |
| 49 | Elsie Fleming | 15 | Daughter | — | Pennsylvania |
| 50 | Dorothy Fleming | 13 | Daughter | — | Pennsylvania |
| 51 | Wesley D. (X) Kelley | 68 | Head | — | Pennsylvania |
| 52 | Elizabeth A. Kelley | 68 | Wife | — | Pennsylvania |
| 53 | John W. Kelley THIS PERSON | 30 | Son | Cost Clerk | Pennsylvania |
| 54 | Ralph C. Kelley | 28 | Son | Salesman | Pennsylvania |
| 55 | Fred C. Wilson | 22 | Head | Salesman | Pennsylvania |
| 56 | Betty M. Wilson | 20 | Wife | — | Pennsylvania |
| 57 | Mary C. Wilson | 67 | Head | — | Pennsylvania |
| 58 | Margaret S. Wilson | 64 | Sister | — | Pennsylvania |
| 59 | Gilbert H. Tripp | 29 | Head | Welder | Pennsylvania |
| 60 | Mary Jane Tripp | 22 | Wife | — | Pennsylvania |
| 62 | Robert B. Henry | 38 | Head | Janitor | Ireland |
| 63 | Edith L. (X) Henry | 32 | Wife | — | Pennsylvania |
| 64 | Robert B. Jr. Henry | 7 | Son | — | Pennsylvania |
| 65 | James C. Henry | 4 | Son | — | Pennsylvania |
| 66 | Sarah A. Henderson | 70 | Mother-in-law | — | Ireland |
| 67 | Emma Heller | 73 | Roomer | — | Pennsylvania |
| 68 | Myrtie A. Wied | 74 | Head | — | Ohio |
| 69 | Minnie E. Wied | 49 | Daughter | Cashier | West Virginia |
| 70 | Harry S. Armstrong | 53 | Head | Laborer | Virginia |
| 71 | Goldie M. (X) Armstrong | 42 | Wife | — | Pennsylvania |
| 72 | Thomas Armstrong | 19 | Son | — | Pennsylvania |
| 73 | Nancy L. Armstrong | 9 | Daughter | — | Pennsylvania |
| 74 | Nannie W. Dalzell | 78 | Mother | — | Pennsylvania |
| 75 | James Dalzell | 77 | Uncle | — | Ireland |
| 76 | William Mcmurdy | 75 | Head | — | Arkansas |
| 77 | Lottie (X) Mcmurdy | 73 | Wife | — | Arkansas |
| 78 | Clara C. Mcmurdy | 36 | Daughter | Stenographer | Pennsylvania |
| 79 | William Ehrhart | 65 | Head | Conductor | Pennsylvania |
| 80 | Josephine (X) Ehrhart | 63 | Wife | — | Ohio |
Related Census Records
Pedigree Summary
John + 1 sibling
Gen 1 · 3 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)