JK
James Kerr — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this James Kerr across the 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 6-person household.
Age 13
b. ~1927
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Kerr |
| Given Name | James A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | ALLEGHENY |
| Additional Details | |
| Highest Grade | No 7 |
| 1935 Residence | Same house |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Charles Kerr | Son | — | 16 | ~1924 |
| Alexander Kerr | Head | — | 57 | ~1883 |
| Harold Kerr | Son | — | 26 | ~1914 |
| Kenneth Kerr | Son | — | 24 | ~1916 |
| James Kerr | Son | — | 13 | ~1927 |
| Alice Kerr | Spouse | — | 50 | ~1890 |
Census Appearances
1930
Allegheny, Pennsylvania
Son, age 3
Allegheny, Pennsylvania · implied b. ~1927 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kerr |
| Given Name | James A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Son, age 13
Allegheny-County, Pennsylvania · implied b. ~1927 — 6 household members
| Surname | Kerr |
| Given Name | James A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | ALLEGHENY |
| Highest Grade | No 7 |
| 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 James Kerr across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Kerr
Son · 1940 · age 13 · b. ~1927 · Pennsylvania
★ You are viewing this record
Sibling
Kenneth Kerr
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harold Kerr
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Kerr
Sibling · 1940 · age 16
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-t0627-03654-00143)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jr Alexander | 25 | Son | File Clerk | Pennsylvania |
| 2 | Mary Louise Alexander | 21 | Daughter | New Worker | Pennsylvania |
| 3 | Margaret Alexander | 19 | Daughter | New Worker | Pennsylvania |
| 4 | Dolores Alexander | 10 | Daughter | — | Pennsylvania |
| 5 | Jack Kelly | 25 | Head | Service Man | Pennsylvania |
| 6 | Eleanor Kelly | 21 | Wife | — | Pennsylvania |
| 7 | Bart Reagan | 34 | Head | — | Pennsylvania |
| 8 | Amanda Reagan | 26 | Sister | Stenographer | Pennsylvania |
| 9 | Naomi Reagan | 22 | Sister | New Worker | Pennsylvania |
| 10 | John G O'Connell | 44 | Head | Switchman | Pennsylvania |
| 11 | Barbara R O'Connell | 42 | Wife | — | Pennsylvania |
| 12 | Mary Rose Calhoun | 19 | Step Daughter | New Worker | Pennsylvania |
| 13 | Vincent Donald Calhoun | 22 | Step Son | Shipper | Pennsylvania |
| 14 | Harper E Swope | 60 | Head | Proprietor | Pennsylvania |
| 15 | Selma B Swope | 37 | Wife | — | Pennsylvania |
| 16 | Aundra Swope | 1 | Daughter | — | Pennsylvania |
| 17 | Beth A Swope | 20 | Daughter | — | Pennsylvania |
| 18 | Beulah Hughes | 38 | Head | Stenographer | Pennsylvania |
| 19 | Maryland E Hughes | 43 | Sister | — | Pennsylvania |
| 20 | John W Mcallister | 53 | Roomer | Proprietor | Pennsylvania |
| 21 | Alexander Kerr | 57 | Head | Watchman | Pennsylvania |
| 22 | Alice E Kerr | 50 | Wife | — | Pennsylvania |
| 23 | Harold C Kerr | 26 | Son | Cashier | Pennsylvania |
| 24 | Kenneth A Kerr | 24 | Son | Machinist | Pennsylvania |
| 25 | Charles B Kerr | 16 | Son | — | Pennsylvania |
| 26 | James A Kerr THIS PERSON | 13 | Son | — | Pennsylvania |
| 27 | J Dennis Robinson | 49 | Head | Chauffeur | Ohio |
| 28 | Beatrice Robinson | 44 | Wife | — | Pennsylvania |
| 29 | James F Burns | 24 | Son | Welder | Pennsylvania |
| 30 | Theodore R Moss | 35 | Head | Chauffeur | Pennsylvania |
| 31 | Josephine Moss | 35 | Wife | — | Pennsylvania |
| 32 | Grace Lownds | 50 | Head | Social Worker | South Carolina |
| 33 | Daisy P Gordon | 27 | Niece | — | Indiana |
| 34 | Gerardo Pascaretta | 44 | Head | Carpenter | Italy |
| 35 | Jennie Pascaretta | 39 | Wife | — | Italy |
| 36 | Frances Pascaretta | 19 | Son | — | Pennsylvania |
| 37 | Rose Marie Pascaretta | 17 | Daughter | — | Pennsylvania |
| 38 | Joan Pascaretta | 12 | Daughter | — | Pennsylvania |
| 39 | Virginia Pascaretta | 7 | Daughter | — | Pennsylvania |
| 40 | Isaac Ruben | 56 | Head | Proprietor | Russia |
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)