JC
James Callahan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cambria-County, Pennsylvania
Our Model Tree links this James Callahan across the 1930 and 1940 US Censuses in Cambria-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 | Cambria-County, Pennsylvania |
| Surname | Callahan |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Watkins |
| 1935 Residence (County) | Cambria |
| Additional Details | |
| Highest Grade | S 8 |
| 1935 Residence | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Spangler |
| 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 James | Age | Birth yr |
|---|---|---|---|---|
| Dorothy Callahan | Daughter | — | 22 | ~1918 |
| Joseph Callahan | Son | — | 11 | ~1929 |
| William Callahan | Son | — | 17 | ~1923 |
| John Callahan | Son | — | 11 | ~1929 |
| Liborius Callahan | Head | — | 46 | ~1894 |
| Jean Callahan | Spouse | — | 41 | ~1899 |
| Robert Callahan | Son | — | 15 | ~1925 |
| Richard Callahan | Son | — | 19 | ~1921 |
| James Callahan | Son | — | 13 | ~1927 |
Census Appearances
1930
Clearfield, Pennsylvania
Son, age 3
Clearfield, Pennsylvania · implied b. ~1927 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Callahan |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Scotland |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Cambria-County, Pennsylvania
Son, age 13
Cambria-County, Pennsylvania · implied b. ~1927 — 9 household members
| Surname | Callahan |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Watkins |
| 1935 Residence (County) | Cambria |
| Highest Grade | S 8 |
| 1935 Residence | Pennsylvania |
| 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 Callahan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Callahan
Son · 1940 · age 13 · b. ~1927 · Pennsylvania
★ You are viewing this record
Sibling
Robert Callahan
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Callahan
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Callahan
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Callahan
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Callahan
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Callahan
Sibling · 1940 · age 22
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 — Cambria-County, Pennsylvania
Open full size
1940 US Federal Census — Cambria-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03457-00537)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Daniel Lanetti | 11 | Son | — | Pennsylvania |
| 42 | Edward Andrews | 37 | Head | Electrician | Pennsylvania |
| 43 | Irene Andrews | 35 | Wife | — | Pennsylvania |
| 44 | Edward Jr. Andrews | 14 | Son | — | Pennsylvania |
| 45 | Irene Andrews | 12 | Daughter | — | Pennsylvania |
| 46 | Allen Flory | 37 | Head | Coal Loader | Pennsylvania |
| 47 | Sylvia Flory | 32 | Wife | — | Pennsylvania |
| 48 | Helen Flory | 9 | Daughter | — | Pennsylvania |
| 49 | Louise Flory | 7 | Daughter | — | Pennsylvania |
| 50 | Allen Jr. Flory | 6 | Son | — | Pennsylvania |
| 51 | Liborius Callahan | 46 | Head | Tippleman | Pennsylvania |
| 52 | Jean Callahan | 41 | Wife | — | Scotland |
| 53 | Dorothy Callahan | 22 | Daughter | Clerk | Pennsylvania |
| 54 | Richard Callahan | 19 | Son | Coal Loader | Pennsylvania |
| 55 | William Callahan | 17 | Son | — | Pennsylvania |
| 56 | Robert Callahan | 15 | Son | — | Pennsylvania |
| 57 | James Callahan THIS PERSON | 13 | Son | — | Pennsylvania |
| 58 | John Callahan | 11 | Son | — | Pennsylvania |
| 59 | Joseph Callahan | 11 | Son | — | Pennsylvania |
| 60 | Walter W. Williams | 41 | Head | Electrician | Pennsylvania |
| 61 | Carlotta Williams | 45 | Wife | — | Pennsylvania |
| 62 | Frederick Williams | 19 | Son | — | Pennsylvania |
| 63 | Malbarga Williams | 12 | Daughter | — | Pennsylvania |
| 64 | Edward Williams | 10 | Son | — | Pennsylvania |
| 65 | Edward Kirkpatrick | 73 | Head | Street Commissioner | Pennsylvania |
| 66 | Emma Kirkpatrick | 69 | Wife | — | Pennsylvania |
| 67 | Edward Lantzy | 46 | Head | Trucking | Pennsylvania |
| 68 | Aleda Lantzy | 43 | Wife | — | Pennsylvania |
| 69 | Francis Lantzy | 17 | Son | Clerk | Pennsylvania |
| 70 | Carl Lantzy | 16 | Son | — | Pennsylvania |
| 71 | Edward Lantzy | 12 | Son | — | Pennsylvania |
| 72 | Pius A. Lantzy | 57 | Head | Investigator | Pennsylvania |
| 73 | Mary May Lantzy | 59 | Wife | — | Pennsylvania |
| 74 | Edward J. Lehmier | 54 | Head | Clerk | Pennsylvania |
| 75 | Myrtle Lehmier | 48 | Wife | — | Pennsylvania |
| 76 | Mary Lehmier | 26 | Daughter | — | Pennsylvania |
| 77 | Guy J. Bisa | 58 | Head | Auto Sales | Pennsylvania |
| 78 | Mary J. Bisa | 46 | Wife | — | Pennsylvania |
| 79 | Jean Bisa | 17 | Daughter | — | Pennsylvania |
| 80 | John Bisa | 30 | Son | Independent | 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)