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James Allen — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this James Allen across the 1910, 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1872), then head of a 5-person household.
Age 68
b. ~1872
Male
Head
Born: Ohio
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Allen |
| Given Name | James P |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 68 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Pittsburgh |
| Est. Birth Year | ~1872 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Charlotte Mckennan | Daughter | — | 37 | ~1903 |
| James Allen | Head | — | 68 | ~1872 |
| Thomas Mckennan | Other | — | 41 | ~1899 |
| James Mckennan | Other | — | 3 | ~1937 |
| Harriet Allen | Spouse | — | 66 | ~1874 |
Census Appearances
1910
Allegheny, Pennsylvania
Head, age 38
Allegheny, Pennsylvania · implied b. ~1872 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Allen |
| Given Name | James P |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Ohio |
| Years Married | 10 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | Salesmanager |
| Industry | Steel Industry |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1920
Allegheny, Pennsylvania
Head, age 48
Allegheny, Pennsylvania · implied b. ~1872 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Allen |
| Given Name | James P |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | President |
| Industry | Steel Casting Co |
| Class of Worker | S |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Allegheny, Pennsylvania
Head, age 58
Allegheny, Pennsylvania · implied b. ~1872 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Allen |
| Given Name | James P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Ohio |
| Age at First Marriage | 29 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 45,000 |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Allegheny-County, Pennsylvania
Head, age 68
Allegheny-County, Pennsylvania · implied b. ~1872 — 5 household members
| Surname | Allen |
| Given Name | James P |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 68 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Allen across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Allen
Head · 1940 · age 68 · b. ~1872 · Pennsylvania
★ You are viewing this record
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-t0627-03662-00173)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John A Follansbee | 37 | Head | Salesman | Pennsylvania |
| 2 | Elizabeth Follansbee | 34 | Wife | — | Pennsylvania |
| 3 | John W Follansbee | 2 | Son | — | Pennsylvania |
| 4 | Anna Beekman | 30 | Maid | Maid | Russia |
| 5 | Irving D. Ross | 50 | Head | Sales Engineer | Pennsylvania |
| 6 | Amelia E Ross | 41 | Wife | — | Missouri |
| 7 | Betty A Ross | 16 | Daughter | — | Pennsylvania |
| 8 | Nancy Jane Ross | 9 | Daughter | — | Pennsylvania |
| 9 | Irving D Ross | 15 | Son | — | Pennsylvania |
| 10 | Richard B Ross | 11 | Son | — | Pennsylvania |
| 11 | Nathan J Leppard | 44 | Head | Attorney | Illinois |
| 12 | Nelsa S Leppard | 36 | Wife | — | Pennsylvania |
| 13 | Marilyn Leppard | 1 | Daughter | — | Pennsylvania |
| 14 | Mary Griesbaum | 19 | Maid | Maid | Pennsylvania |
| 15 | William T Todd | 79 | Head | — | England |
| 16 | Mary A Todd | 70 | Wife | — | Pennsylvania |
| 17 | William T Jr Todd | 44 | Son | Vice President | Pennsylvania |
| 18 | George H Armitage | 54 | Chauffeur | Chauffeur | England |
| 19 | Margaret Armitage | 50 | Cook | Cook | Irish Free State |
| 20 | Joseph D Watson | 45 | Head | Sales Manager | Ohio |
| 21 | Elizabeth B Watson | 45 | Wife | — | Pennsylvania |
| 22 | Elizabeth K Watson | 20 | Daughter | — | Pennsylvania |
| 23 | Henry K Watson | 18 | Son | — | Pennsylvania |
| 24 | Theodore Witherspoon | 25 | Chauffeur | Chauffeur | So. Carolina |
| 25 | Lucille Witherspoon | 28 | Maid | Maid | No. Carolina |
| 26 | James P Allen THIS PERSON | 68 | Head | — | Ohio |
| 27 | Harriet B Allen | 66 | Wife | — | Ohio |
| 28 | Thomas Mckennan | 41 | Son in law | Manager | Pennsylvania |
| 29 | Charlotte Mckennan | 37 | Daughter | — | Ohio |
| 30 | James A Mckennan | 3 | Grand son | — | Pennsylvania |
| 31 | Francis Demms | 62 | Head | Treasurer | Pennsylvania |
| 32 | Helen Demms | 50 | Wife | — | Indiana |
| 33 | Charles Bygate | 27 | Step son | Contractor | Pennsylvania |
| 34 | Josephine Bygate | 24 | Step daughter | Secretary | Pennsylvania |
| 35 | Betty Brooks | 19 | Step daughter | — | Pennsylvania |
| 36 | John Brooks | 17 | Step son | — | Pennsylvania |
| 37 | Anna Dalak | 24 | Maid | Maid | Pennsylvania |
| 38 | Elizabeth Mylaw | 28 | Maid | Maid | Irish Free State |
| 39 | William Meyer | 57 | Head | — | New York |
| 40 | Julia S Meyer | 52 | Wife | — | 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)