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John Mackey — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Middlesex, New Jersey
Our Model Tree links this John Mackey across the 1930 and 1940 US Censuses in Middlesex, New Jersey (XGBoost, ~Confirmed) — first a son (b.~1920), then head of a 6-person household.
Age 10
b. ~1920
Male
Son
Born: New Jersey
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Middlesex, New Jersey |
| Surname | Mackey |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New York |
| Additional Details | |
| Occupation | Clerk |
| Industry | Grocery Store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
| Occupation | Clerk |
| Township / Ward | Borough Of South Plainfield |
| Est. Birth Year | ~1920 |
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 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Connie Mackey | Son | — | 15 | ~1915 |
| Emily Mackey | Spouse | — | 41 | ~1889 |
| Louis Mackey | Head | — | 41 | ~1889 |
| Inez Mackey | Daughter | — | ~1930 | |
| Eleanor Mackey | Daughter | — | 3 | ~1927 |
| John Mackey | Son | — | 10 | ~1920 |
Census Appearances
1930
Middlesex, New …
Son, age 10
Middlesex, New Jersey · implied b. ~1920 — 6 household members
| Surname | Mackey |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | New Jersey |
| Father's Birthplace | New Jersey |
| Mother's Birthplace | New York |
| Occupation | Clerk |
| Industry | Grocery Store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
1940
Middlesex-County, New …
Son, age 19
Middlesex-County, New Jersey · implied b. ~1921 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Macey |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | New Jersey |
| 1935 Residence (City) | Dunellen Borough |
| 1935 Residence (County) | Middlesex |
| Occupation | Messenger |
| Industry | Chemicals |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 710 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same house |
| Birth State | New Jersey |
| Birth Country | United States |
| Birthplace (normalized) | new jersey |
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
Son · 1930 · age 10 · b. ~1920 · New Jersey
★ You are viewing this record
Sibling
Inez Mackey
Sibling · 1930 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Connie Mackey
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eleanor Mackey
Sibling · 1930 · age 3
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
1930 US Federal Census — Middlesex, New Jersey
Open full size
1930 US Federal Census — Middlesex, New Jersey
Page Contents
50 people indexed on this census page (ia:1930:newjerseycensus00reel1369:0399)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Steve Polakoski | 39 | Head | Tire Factory | Poland |
| 2 | Catherine Polakoski | 34 | Wife | — | Poland |
| 3 | Sophie Polakoski | 15 | Daughter | — | New York |
| 4 | Walter Polakoski | 12 | Son | Laborer | New York |
| 5 | Steve Polakoski | 11 | Son | — | New Jersey |
| 6 | Laura Polakoski | 7 | Daughter | — | New Jersey |
| 7 | Edward Polakoski | 1 | Son | — | New Jersey |
| 8 | Frank M. Louden | 52 | Head | — | New Jersey |
| 9 | Gertrude Louden | 52 | Wife | Painter | New Jersey |
| 10 | William Louden | 27 | Brother | — | New Jersey |
| 11 | Louis Mackey | 41 | Head | — | New Jersey |
| 12 | Emily Mackey | 41 | Wife | Machinist | New York |
| 13 | Connie Mackey | 15 | Son | — | New Jersey |
| 14 | John Mackey THIS PERSON | 10 | Son | Clerk | New Jersey |
| 15 | Eleanor Mackey | 3 | Daughter | — | New Jersey |
| 16 | Inez L. Mackey | 0 | Daughter | — | New Jersey |
| 17 | Henrietta Brown | 50 | Head | — | New Jersey |
| 18 | Alice Brown | 21 | Daughter | Clerk | New Jersey |
| 19 | Martin Amarescu | 47 | Head | Baker | Romania |
| 20 | Julia Amarescu | 45 | Wife | — | Romania |
| 21 | Mary Amarescu | 21 | Daughter | Teacher | New Jersey |
| 22 | John Amarescu | 18 | Son | Electrician | New Jersey |
| 23 | Olga Amarescu | 15 | Daughter | — | New Jersey |
| 24 | Francis Amarescu | 11 | Daughter | — | New Jersey |
| 25 | John Van Norden | 70 | Head | — | New Jersey |
| 26 | Frances Van Norden | 27 | Daughter | Recorder | New Jersey |
| 27 | Harry Van Norden | 26 | Son-in-law | Mechanical Eng. | New Jersey |
| 28 | John Harry Van Norden | 2 | Son | — | New Jersey |
| 29 | Charles P. Coon | 62 | Head | Assessor | New Jersey |
| 30 | Susan Coon | 58 | Wife | — | New Jersey |
| 31 | Emma Triss | 29 | Daughter | — | New Jersey |
| 32 | Benjamin Triss | 30 | Son-in-law | Manager | Connecticut |
| 33 | Charlotte Triss | 4 | Daughter | — | New Jersey |
| 34 | Thomas Marks | 44 | Head | — | Germany |
| 35 | Lillian Marks | 44 | Daughter | Clerk | New Jersey |
| 36 | Benjamin Marks | 21 | Son | Assistant Manager | New Jersey |
| 37 | Morris Hammerschlag | 56 | Head | Butcher | Austria |
| 38 | Bertha Hammerschlag | 54 | Wife | — | Austria |
| 39 | Herman Hammerschlag | 50 | Brother | Pressman | Austria |
| 40 | Isadore Frischlander | 46 | Head | Foreman | New York |
| 41 | Sadie Frischlander | 48 | Wife | — | New York |
| 42 | Selma Frischlander | 17 | Daughter | Clerk | New Jersey |
| 43 | Helen Frischlander | 15 | Daughter | — | New Jersey |
| 44 | Sally Frischlander | 11 | Daughter | — | New Jersey |
| 45 | Watson Vandewater | 42 | Head | Laborer | New Jersey |
| 46 | Ethel Vandewater | 41 | Wife | — | New Jersey |
| 47 | Nellie Vandewater | 11 | Daughter | — | New Jersey |
| 48 | Emma Reed | 86 | Mother | — | New Jersey |
| 49 | David Hammond | 21 | Boarder | Laborer | Austria |
| 50 | Joe Hammond | 13 | Boarder | — | Austria |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)