JH
John Henderson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this John Henderson across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1894), then head of a 8-person household.
Age 46
b. ~1894
Male
Head
Born: Finland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Henderson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Finland |
| 1935 Residence (City) | Natrona |
| 1935 Residence (County) | Allegheny |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Miner |
| Industry | Coal Mine |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1271 |
| Highest Grade | No 7 |
| 1935 Residence | Same House |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
| Occupation | Miner |
| Township / Ward | Natrona |
| Est. Birth Year | ~1894 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Marie Henderson | Daughter | — | 10 | ~1930 |
| Catherine Henderson | Daughter | — | 14 | ~1926 |
| Evelyn Henderson | Daughter | — | 16 | ~1924 |
| John Henderson | Head | — | 46 | ~1894 |
| Leonard Henderson | Son | — | 7 | ~1933 |
| Albert Henderson | Son | — | 18 | ~1922 |
| Albin Henderson | Son | — | 19 | ~1921 |
| Elvira Henderson | Spouse | — | 45 | ~1895 |
Census Appearances
1920
Indiana, Pennsylvania
Head, age 25
Indiana, Pennsylvania · implied b. ~1895 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Henderson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Finland |
| Naturalization Status | un |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Occupation | Miner |
| Industry | Coal Mines |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Finnish |
| Home Owned/Rented | R |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
1930
Allegheny, Pennsylvania
Head, age 36
Allegheny, Pennsylvania · implied b. ~1894 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Henderson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Finland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1910 |
| Age at First Marriage | 25 |
| Father's Birthplace | Finland |
| Mother's Birthplace | Finland |
| Occupation | Miner |
| Industry | Coal mines |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | R |
| Home Value / Rent | 25.00 |
| Veteran | No |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
1940
Allegheny-County, Pennsylvania
Head, age 46
Allegheny-County, Pennsylvania · implied b. ~1894 — 8 household members
| Surname | Henderson |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Finland |
| 1935 Residence (City) | Natrona |
| 1935 Residence (County) | Allegheny |
| Naturalization Status | Naturalized |
| Occupation | Miner |
| Industry | Coal Mine |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1271 |
| Highest Grade | No 7 |
| 1935 Residence | Same House |
| Birth Country | Finland |
| Birthplace (normalized) | finland |
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 Henderson across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Henderson
Head · 1940 · age 46 · b. ~1894 · Pennsylvania
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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-t0627-03405-00251)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Bernard Kifus | 10 | Son | — | Pennsylvania |
| 42 | Edward Kifus | 7 | Son | — | Pennsylvania |
| 43 | Joseph Karminski | 61 | Head | Laborer | Poland |
| 44 | Michael Barckoski | 42 | Head | Crane Man | Pennsylvania |
| 45 | Cecelia Barckoski | 33 | Wife | — | Pennsylvania |
| 46 | Joseph Barckoski | 83 | Father | — | Poland |
| 47 | Stanley Rutkowski | 30 | Head | Steel Worker | Pennsylvania |
| 48 | Jennie Rutkowski | 28 | Wife | — | Pennsylvania |
| 49 | Helen Rutkowski | 10 | Daughter | — | Pennsylvania |
| 50 | John Rutkowski | 4 | Son | — | Pennsylvania |
| 51 | Zygmun Sinkoski | 56 | Head | Laborer | Poland |
| 52 | Helen Sinkoski | 52 | Wife | — | Poland |
| 53 | Sophie Sinkoski | 15 | Daughter | — | Pennsylvania |
| 54 | Esther Tuchman | 49 | Head | Storekeeper | Poland |
| 55 | Samuel Tuchman | 20 | Son | Laborer | Poland |
| 56 | Chester E. Montgomery | 30 | Head | Booker | Indiana |
| 57 | Dolores Montgomery | 29 | Wife | — | Pennsylvania |
| 58 | Dolores Montgomery | 9 | Daughter | — | Pennsylvania |
| 59 | Jane Montgomery | 8 | Daughter | — | Pennsylvania |
| 60 | Shirley Montgomery | 6 | Daughter | — | Pennsylvania |
| 61 | Thomas Barker | 31 | Head | Charger | Pennsylvania |
| 62 | Jane Barker | 32 | Wife | Subst. Teacher | Pennsylvania |
| 63 | John Henderson THIS PERSON | 46 | Head | Miner | Finland |
| 64 | Elvira Henderson | 45 | Wife | — | Finland |
| 65 | Albin Henderson | 19 | Son | New Worker | Pennsylvania |
| 66 | Albert Henderson | 18 | Son | New Worker | Pennsylvania |
| 67 | Evelyn Henderson | 16 | Daughter | — | Pennsylvania |
| 68 | Catherine Henderson | 14 | Daughter | — | Pennsylvania |
| 69 | Marie Henderson | 10 | Daughter | — | Pennsylvania |
| 70 | Leonard Henderson | 7 | Son | — | Pennsylvania |
| 71 | David Muir | 32 | Head | Foreman | Pennsylvania |
| 72 | Harriet Muir | 31 | Wife | — | Pennsylvania |
| 73 | Robert Muir | 5 | Son | — | Pennsylvania |
| 74 | Harry Scott | 52 | Head | Plasterer | Pennsylvania |
| 75 | Hazel Scott | 45 | Wife | — | Pennsylvania |
| 76 | Grace Scott | 25 | Daughter | Clerk | Pennsylvania |
| 77 | Dorothy Scott | 20 | Daughter | New Worker | Pennsylvania |
| 78 | John A. Walter | 85 | Head | Teaching | Pennsylvania |
| 79 | Fanny Lillian Walter | 58 | Daughter | — | Pennsylvania |
| 80 | Herbert Walter | 25 | Son | Laborer | 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)