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John Mackey — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Clinton-County, Pennsylvania
Our Model Tree links this John Mackey across the 1930 and 1940 US Censuses in Clinton-County, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1906), then head of a 7-person household.
Age 34
b. ~1906
Male
Head
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Clinton-County, Pennsylvania |
| Surname | Mackey |
| Given Name | John M. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Renovo Borough |
| 1935 Residence (County) | Clinton |
| Additional Details | |
| Occupation | Machinist |
| Industry | Steam Railway |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 2360 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Machinist |
| Township / Ward | Renovo Borough |
| Est. Birth Year | ~1906 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mary Mackey | Daughter | — | 8 | ~1932 |
| Mary Mackey | Spouse | — | 33 | ~1907 |
| Martin Deeghan | Other | — | 64 | ~1876 |
| John Mackey | Head | — | 34 | ~1906 |
| Ann Mackey | Daughter | — | 5 | ~1935 |
| Collen Mackey | Daughter | — | 10 | ~1930 |
| John Mackey | Son | — | 3 | ~1937 |
Census Appearances
1930
Clinton, Pennsylvania
Head, age 23
Clinton, Pennsylvania · implied b. ~1907 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mackey |
| Given Name | J. Millard |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 21 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Machinist |
| Industry | Railroad Shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 27 |
| Veteran | No |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Clinton-County, Pennsylvania
Head, age 34
Clinton-County, Pennsylvania · implied b. ~1906 — 7 household members
| Surname | Mackey |
| Given Name | John M. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Renovo Borough |
| 1935 Residence (County) | Clinton |
| Occupation | Machinist |
| Industry | Steam Railway |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 2360 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 Mackey across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Mackey
Head · 1940 · age 34 · b. ~1906 · 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 — Clinton-County, Pennsylvania
Open full size
1940 US Federal Census — Clinton-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03472-00836)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Margaret L. Rooney | 19 | Niece | — | Penna |
| 42 | Michael J. Kelly | 73 | Head | Blacksmith | Ireland |
| 43 | Sara V. Kelly | 40 | Daughter | — | Penna |
| 44 | Mary Mulvihill | 68 | Sister | — | Ireland |
| 45 | Joseph M. Fetterman | 24 | Grandson | New Worker | Penna |
| 46 | Aileen M. Fetterman | 22 | Granddaughter | New Worker | Penna |
| 47 | Philip H. Kauff | 18 | Grandson | — | Penna |
| 48 | James Kauff | 4 | Grandson | — | Penna |
| 49 | John E. Witchey | 58 | Head | Watchman | Penna |
| 50 | Samuel E. Witchey | 31 | Son | Laborer | Penna |
| 51 | William H. Witchey | 29 | Son | Electrician | Penna |
| 52 | John E. Witchey | 27 | Son | Bartender | Penna |
| 53 | Raymond L. Witchey | 19 | Son | Truck Driver | Penna |
| 54 | Arthur R. Witchey | 18 | Son | New Worker | Penna |
| 55 | Henry S. Witchey | 13 | Son | — | Penna |
| 56 | Daisy M. Witchey | 11 | Daughter | — | Penna |
| 57 | Nellie F. Russell | 66 | Head | — | Ireland |
| 58 | Carrie E. Thorstow | 41 | Head | Waitress | Penna |
| 59 | Harry S. Thorstow | 22 | Son | Car Repairman | Penna |
| 60 | Francis E. Thorstow | 17 | Son | — | Penna |
| 61 | Eva G. Thorstow | 15 | Daughter | — | Penna |
| 62 | William P. Covenaugh | 69 | Head | Broker | Penna |
| 63 | Theresa M. Covenaugh | 75 | Wife | — | Penna |
| 64 | Thomas E. Mccann | 65 | Head | Stockman | Penna |
| 65 | Mary G. Mccann | 75 | Sister | — | Penna |
| 66 | Sue A. Mccann | 73 | Sister | — | Penna |
| 67 | Nellie G. Mccann | 68 | Sister | — | Penna |
| 68 | Francis Hooley | 41 | Head | Mail Clerk | Penna |
| 69 | Julia A. Hooley | 37 | Wife | — | Penna |
| 70 | Francis R. Windfelder | 44 | Head | Agent | Penna |
| 71 | Marie E. Windfelder | 39 | Wife | — | Penna |
| 72 | Emma M. Windfelder | 69 | Mother | — | Penna |
| 73 | John M. Mackey THIS PERSON | 34 | Head | Machinist | Maryland |
| 74 | Mary L. Mackey | 33 | Wife | — | Penna |
| 75 | John M. Jr. Mackey | 3 | Son | — | Penna |
| 76 | Collen M. Mackey | 10 | Daughter | — | Penna |
| 77 | Mary L. Mackey | 8 | Daughter | — | Penna |
| 78 | Ann M. Mackey | 5 | Daughter | — | Penna |
| 79 | Martin A. Deeghan | 64 | Father in law | Laborer | Penna |
| 80 | Fred H. English | 64 | Head | Car Repairman | Penna |
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)