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John Knox — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Indiana-County, Pennsylvania
Our Model Tree links this John Knox across the 1930 and 1940 US Censuses in Indiana-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 12-person household.
Age 18
b. ~1922
Male
Son
Born: Pennsylvania
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Indiana-County, Pennsylvania |
| Surname | Knox |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | North Mahoning |
| 1935 Residence (County) | Indiana |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | NP |
| Highest Grade | Hs 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Farmer |
| Township / Ward | North Mahoning |
| Est. Birth Year | ~1922 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Frances Knox | Daughter | — | 3 | ~1937 |
| Virgil Knox | Head | — | 39 | ~1901 |
| Harold Knox | Son | — | 6 | ~1934 |
| Clark Knox | Son | — | 14 | ~1926 |
| Ralph Knox | Son | — | 16 | ~1924 |
| Richard Knox | Son | — | 9 | ~1931 |
| Clara Knox | Daughter | — | 4 | ~1936 |
| Ruth Knox | Spouse | — | 43 | ~1897 |
| Charles Knox | Son | — | 17 | ~1923 |
| John Knox | Son | — | 18 | ~1922 |
| Donald Knox | Son | — | 10 | ~1930 |
| Martha Knox | Daughter | — | 13 | ~1927 |
Census Appearances
1930
Indiana, Pennsylvania
Son, age 8
Indiana, Pennsylvania · implied b. ~1922 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Knox |
| Given Name | John N. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Indiana-County, Pennsylvania
Son, age 18
Indiana-County, Pennsylvania · implied b. ~1922 — 12 household members
| Surname | Knox |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | North Mahoning |
| 1935 Residence (County) | Indiana |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | NP |
| Highest Grade | Hs 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 Knox across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Knox
Son · 1940 · age 18 · b. ~1922 · Pennsylvania
★ You are viewing this record
Sibling
Harold Knox
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Knox
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clara Knox
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Knox
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frances Knox
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Knox
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martha Knox
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clark Knox
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ralph Knox
Sibling · 1940 · age 16
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 — Indiana-County, Pennsylvania
Open full size
1940 US Federal Census — Indiana-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03518-00248)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Robert D. Knox | 70 | Head | Retired | Pennsylvania |
| 42 | C. Pearl Knox | 57 | Wife | — | North Carolina |
| 43 | Carl Neese | 52 | Head | Carman | Pennsylvania |
| 44 | Mary Etta Neese | 54 | Wife | — | Pennsylvania |
| 45 | Virgil S. Knox | 39 | Head | Laborer | Pennsylvania |
| 46 | Ruth D. Knox | 43 | Wife | — | Pennsylvania |
| 47 | John Knox THIS PERSON | 18 | Son | Farmer | Pennsylvania |
| 48 | Charles Knox | 17 | Son | Student | Pennsylvania |
| 49 | Ralph Knox | 16 | Son | Student | Pennsylvania |
| 50 | Clark Knox | 14 | Son | Student | Pennsylvania |
| 51 | Martha Knox | 13 | Daughter | Student | Pennsylvania |
| 52 | Donald Knox | 10 | Son | Student | Pennsylvania |
| 53 | Richard Knox | 9 | Son | Student | Pennsylvania |
| 54 | Harold Knox | 6 | Son | Student | Pennsylvania |
| 55 | Clara Knox | 4 | Daughter | — | Pennsylvania |
| 56 | Frances Knox | 3 | Daughter | — | Pennsylvania |
| 57 | H. D. Coy | 67 | Head | Laborer | Pennsylvania |
| 58 | Sara Ada Coy | 56 | Wife | — | Pennsylvania |
| 59 | Verona Freese | 80 | Head | — | Pennsylvania |
| 60 | William D. Freese | 42 | Son | Farmer | Pennsylvania |
| 61 | Elizabeth Freese | 47 | Daughter in law | — | Pennsylvania |
| 62 | Charles Freese | 43 | Son | Farmer | Pennsylvania |
| 63 | Thomas Freese | 35 | Son | Coal Miner | Pennsylvania |
| 64 | John D. Mccormick | 38 | Head | Farmer | Pennsylvania |
| 65 | Elizabeth Mccormick | 48 | Wife | — | Pennsylvania |
| 66 | Neal Mccormick | 19 | Son | Laborer | Pennsylvania |
| 67 | Norman Mccormick | 11 | Daughter | Student | Pennsylvania |
| 68 | Quentin Whitticare | 28 | Brother in law | — | Pennsylvania |
| 69 | George D. Lunger | 64 | Head | Farmer | Pennsylvania |
| 70 | Ida D. Lunger | 62 | Wife | — | Pennsylvania |
| 71 | Pauline Lunger | 22 | Daughter | Chicken Raiser | Pennsylvania |
| 72 | J. L. D. Beck | 52 | Head | Farmer | Pennsylvania |
| 73 | Blair D. Beck | 45 | Brother | Farmer | Pennsylvania |
| 74 | Verna Beck | 42 | Sister in law | — | Pennsylvania |
| 75 | Wayne Beck | 14 | Nephew | Student | Pennsylvania |
| 76 | Stuart Mclaughlin | 58 | Head | — | Pennsylvania |
| 77 | Edna D. Mclaughlin | 58 | Wife | — | Pennsylvania |
| 78 | Kenneth Mclaughlin | 14 | Son | Student | Pennsylvania |
| 79 | Lois Mclaughlin | 12 | Daughter | Student | Pennsylvania |
| 80 | Anna D. Wolfert | 77 | Head | — | 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)