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John Armstrong — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this John Armstrong across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1875), then head of a 3-person household.
Age 65
b. ~1875
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Armstrong |
| Given Name | John |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Springdale boro |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | tax collector |
| Industry | boro |
| Class of Worker | GW |
| Hours Worked | 54 |
| Income (1939) | 116 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Tax Collector |
| Township / Ward | Springdale Boro |
| Est. Birth Year | ~1875 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Helen Armstrong | Daughter | — | 28 | ~1912 |
| John Armstrong | Head | — | 65 | ~1875 |
| Helen Armstrong | Spouse | — | 60 | ~1880 |
Census Appearances
1920
Allegheny, Pennsylvania
Head, age 45
Allegheny, Pennsylvania · implied b. ~1875 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Armstrong |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Teller |
| Industry | Bank |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Head, age 55
Allegheny, Pennsylvania · implied b. ~1875 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Armstrong |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 55 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Age at First Marriage | 26 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Cashier |
| Industry | Bank |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 5000 |
| Radio Set | R |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Head, age 65
Allegheny-County, Pennsylvania · implied b. ~1875 — 3 household members
| Surname | Armstrong |
| Given Name | John |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Springdale boro |
| 1935 Residence (County) | Allegheny |
| Occupation | tax collector |
| Industry | boro |
| Class of Worker | GW |
| Hours Worked | 54 |
| Income (1939) | 116 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| 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 John Armstrong across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Armstrong
Head · 1940 · age 65 · b. ~1875 · 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-t0627-03418-00045)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Elmer Jr. Leland | 21 | son | Pallet Feeder | Pennsylvania |
| 42 | Dorothy Leland | 19 | daughter | None | Pennsylvania |
| 43 | Elton Leland | 18 | son | Janitors Helper | Pennsylvania |
| 44 | Harold Leland | 15 | son | — | Pennsylvania |
| 45 | William Mccluskey | 34 | head | Assistant Control Operator | Pennsylvania |
| 46 | Pearl Mccluskey | 30 | wife | — | Pennsylvania |
| 47 | William Mccluskey | 7 | son | — | Pennsylvania |
| 48 | Marilyn Mccluskey | 5 | daughter | — | Pennsylvania |
| 49 | Robert Montelony | 26 | head | Boiler Repairman | Pennsylvania |
| 50 | Margaret Montelony | 19 | wife | — | Pennsylvania |
| 51 | Robert Lee Montelony | 1 | son | — | Pennsylvania |
| 52 | Charles E. Nixon | 42 | head | Combination Engineer | Pennsylvania |
| 53 | Myrtle A. Nixon | 30 | wife | — | Pennsylvania |
| 54 | Richard Nixon | 11 | son | — | Pennsylvania |
| 55 | Lulu May Nixon | 6 | daughter | — | Pennsylvania |
| 56 | Robert Orr | 7 | lodger | — | Pennsylvania |
| 57 | William Pike | 54 | head | Maintenance Foreman | Pennsylvania |
| 58 | Ileda S. Pike | 51 | wife | — | Pennsylvania |
| 59 | Susan P. Macbeth | 73 | mother-in-law | — | Pennsylvania |
| 60 | Andrew Kish | 39 | head | — | Pennsylvania |
| 61 | Robert Kish | 16 | son | — | Pennsylvania |
| 62 | Lucille Kish | 18 | daughter | Maid | Pennsylvania |
| 63 | Anthony Grenaldo | 45 | lodger | Janitor | Pennsylvania |
| 64 | John Armstrong THIS PERSON | 65 | head | Tax Collector | Pennsylvania |
| 65 | Helen Armstrong | 60 | wife | — | Pennsylvania |
| 66 | Helen L. Armstrong | 28 | daughter | Secretary | Pennsylvania |
| 67 | Joseph Konulja | 55 | head | Coal Loader | Yugo-Slavia |
| 68 | Frances Konulja | 39 | wife | — | Yugo-Slavia |
| 69 | Joseph Konulja | 5 | son | — | Pennsylvania |
| 70 | Antoinette Mahovic | 20 | daughter | — | Pennsylvania |
| 71 | Frances Mahovic | 17 | mother-in-law | — | Pennsylvania |
| 72 | Neal Kline | 27 | head | Teacher | Pennsylvania |
| 73 | Laura Jane Kline | 29 | wife | Reporter | Pennsylvania |
| 74 | Lucy Conn | 33 | lodger | Teacher | Pennsylvania |
| 75 | Chester A. Leas | 46 | head | Automotive Salesman | Pennsylvania |
| 76 | Sara Leas | 43 | wife | — | Pennsylvania |
| 77 | Marion Leas | 21 | daughter | — | Pennsylvania |
| 78 | Robert Leas | 16 | son | — | Pennsylvania |
| 79 | Frederick Leas | 14 | son | — | Pennsylvania |
| 80 | Roger Leas | 2 | son | — | Pennsylvania |
Related Census Records
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)