JD
John Davidson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Cambria-County, Pennsylvania
Our Model Tree links this John Davidson across the 1920, 1930 and 1940 US Censuses in Cambria-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Agnes & John — first a head (b.~1901), then head of a 6-person household.
Age 39
b. ~1901
Male
Head
Born: Scotland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cambria-County, Pennsylvania |
| Surname | Davidson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Nanty-Glo |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | hoist operator |
| Industry | Mining of Coal |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 1300 |
| Highest Grade | No 8 |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Occupation | Hoist Operator |
| Township / Ward | Nantyglo |
| Est. Birth Year | ~1901 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Betty Davidson | Daughter | — | 12 | ~1928 |
| Agnes Davidson | Daughter | — | 4 | ~1936 |
| Jane Davidson | Daughter | — | 5 | ~1935 |
| Mary Davidson | Daughter | — | 15 | ~1925 |
| John Davidson | Head | — | 39 | ~1901 |
| Ellen Davidson | Spouse | — | 35 | ~1905 |
Census Appearances
1920
Indiana, Pennsylvania
Son, age 18
Indiana, Pennsylvania · implied b. ~1902 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davidson |
| Given Name | John C. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Scotland |
| Year of Immigration | 1912 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Miner |
| Industry | Coal |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Scotch |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1930
Cambria, Pennsylvania
Head, age 29
Cambria, Pennsylvania · implied b. ~1901 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davidson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Scotland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1912 |
| Age at First Marriage | 23 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Engineer |
| Industry | Coal mine |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Scotch |
| Home Owned/Rented | R |
| Home Value / Rent | 8 |
| Radio Set | R |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Cambria-County, Pennsylvania
Head, age 39
Cambria-County, Pennsylvania · implied b. ~1901 — 6 household members
| Surname | Davidson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Scotland |
| 1935 Residence (City) | Nanty-Glo |
| Naturalization Status | Naturalized |
| Occupation | hoist operator |
| Industry | Mining of Coal |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 1300 |
| Highest Grade | No 8 |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 Davidson across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: mother Agnes Davidson (~0.92 confidence) and father John Davidson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Agnes Davidson
b. ~1858
Source mother
● Household
· direct · ~0.92
Father
John Davidson
b. ~1858
Source father
● Household
· direct · ~0.92
This person
Anchor record
John Davidson
Head · 1940 · age 39 · b. ~1901 · 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 — 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-t0627-03456-00340)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | David Jones | 5 | son | — | Pennsylvania |
| 42 | Robert Jones | 1 | son | — | Pennsylvania |
| 43 | William Jones | 0 | son | — | Pennsylvania |
| 44 | Norman Zeitz | 21 | Head | Laborer | Pennsylvania |
| 45 | Sadie Zeitz | 17 | Wife | — | Pennsylvania |
| 46 | Alma Stiffler | 41 | Head | Seamstress | Pennsylvania |
| 47 | James R. Stiffler | 18 | son | New Worker | Pennsylvania |
| 48 | Theodore Stiffler | 21 | nephew | Coal Miner | Pennsylvania |
| 49 | Marie Stiffler | 19 | niece | — | Pennsylvania |
| 50 | James Stiffler | 4 | nephew | — | Pennsylvania |
| 51 | John Stiffler | 0 | nephew | — | Pennsylvania |
| 52 | John Davidson THIS PERSON | 39 | Head | Hoist Operator | Scotland |
| 53 | Ellen Davidson | 35 | Wife | — | Pennsylvania |
| 54 | Mary E. Davidson | 15 | daughter | — | Pennsylvania |
| 55 | Betty Davidson | 12 | daughter | — | Pennsylvania |
| 56 | Jane Davidson | 5 | daughter | — | Pennsylvania |
| 57 | Agnes Davidson | 4 | daughter | — | Pennsylvania |
| 58 | Carl Lantzy | 43 | Head | Electric Hoist Operator | Pennsylvania |
| 59 | Bertha Lantzy | 41 | Wife | — | Pennsylvania |
| 60 | Carl Lantzy | 18 | son | — | Pennsylvania |
| 61 | Ralph Lantzy | 14 | son | — | Pennsylvania |
| 62 | Daniel G. Schlosser | 44 | Head | Pump Operator | Pennsylvania |
| 63 | Jennie Schlosser | 45 | Wife | — | Pennsylvania |
| 64 | James W. Schlosser | 21 | son | Coal Miner | Pennsylvania |
| 65 | Arthur M. Schlosser | 16 | son | — | Pennsylvania |
| 66 | James A. Moore | 64 | Head | Coal Miner | Pennsylvania |
| 67 | Ward Moore | 30 | son | Coal Miner | Pennsylvania |
| 68 | Augustine Chernisky | 30 | Head | Clutchman | Pennsylvania |
| 69 | Josephine Chernisky | 24 | Wife | — | Pennsylvania |
| 70 | Albert Chernisky | 6 | son | — | Pennsylvania |
| 71 | Augustine Chernisky | 3 | son | — | Pennsylvania |
| 72 | Mildred Chernisky | 1 | daughter | — | Pennsylvania |
| 73 | Harold E. Schlosser | 23 | Head | Coal Miner | Pennsylvania |
| 74 | Verna Schlosser | 21 | Wife | — | Pennsylvania |
| 75 | Harold R. Schlosser | 2 | son | — | Pennsylvania |
| 76 | Barbara M. Schlosser | 0 | daughter | — | Pennsylvania |
| 77 | Fred Sanfilippo | 61 | Head | Laborer | Italy |
| 78 | Vincent Riley | 41 | Head | Coal Miner | Pennsylvania |
| 79 | Doris Grace Riley | 46 | Wife | Housekeeper | Pennsylvania |
| 80 | John Albert | 49 | Head | Laborer | Austria |
Pedigree Summary
John
Gen 1 · 2 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)