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John Mackey — 1930 US Census Record
Linked across censuses1930 United States Federal Census · St Clair, Illinois
Our Model Tree links this John Mackey across the 1920, 1930 and 1940 US Censuses in St Clair, Illinois (XGBoost, ~Confirmed) — first a head (b.~1897), then head of a 5-person household.
Age 33
b. ~1897
Male
Head
Born: Indiana
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | St Clair, Illinois |
| Surname | Mackey |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Indiana |
| Age at First Marriage | 21 |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Additional Details | |
| Occupation | Driver |
| Industry | Coal Mine |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 5 |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Driver |
| Township / Ward | Caseyville Township |
| Est. Birth Year | ~1897 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Stella Mackey | Spouse | — | 33 | ~1897 |
| John Mackey | Son | — | 7 | ~1923 |
| John Mackey | Head | — | 33 | ~1897 |
| Maxine Mackey | Daughter | — | 11 | ~1919 |
| Cathryn Mackey | Daughter | — | 9 | ~1921 |
Census Appearances
1920
St Clair, …
Head, age 22
St Clair, Illinois · implied b. ~1898 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mackey |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | Miner |
| Industry | Coal mine |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
St Clair, …
Head, age 33
St Clair, Illinois · implied b. ~1897 — 5 household members
| Surname | Mackey |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Indiana |
| Age at First Marriage | 21 |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | Driver |
| Industry | Coal Mine |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 5 |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
St.-Clair-County, Illinois
Head, age 43
St.-Clair-County, Illinois · implied b. ~1897 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mackay |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | R. |
| 1935 Residence (County) | St. Clair |
| Occupation | Miner |
| Industry | Coal Mine |
| Class of Worker | PW |
| Hours Worked | 35 |
| Income (1939) | 1026 |
| Highest Grade | No 8 |
| 1935 Residence | Illinois |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Mackey
Head · 1930 · age 33 · b. ~1897 · Illinois
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — St Clair, Illinois
Open full size
1930 US Federal Census — St Clair, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel555:0857)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph Kinsella | 18 | Son | Farm Help | Illinois |
| 2 | Mary Kinsella | 16 | Daughter | — | Illinois |
| 3 | Pearl Kinsella | 21 | Son | — | Illinois |
| 4 | James Kinsella | 6 | Son | — | Illinois |
| 5 | Henry Cookson | 49 | Head | Farmer | Illinois |
| 6 | Milla Cookson | 40 | Wife | — | Illinois |
| 7 | Blain Cookson | 19 | Son | Farm Helper | Illinois |
| 8 | Velma Cookson | 16 | Daughter | — | Illinois |
| 9 | Mildred Cookson | 13 | Daughter | — | Illinois |
| 10 | Henry Kampmeyer | 41 | Head | Farmer | Illinois |
| 11 | William Kampmeyer | 39 | Brother | Partner | Illinois |
| 12 | Alice Kampmeyer | 32 | Sister in L | — | Illinois |
| 13 | Edna Kampmeyer | 5 | Daughter | — | Illinois |
| 14 | Henry Sr Kampmeyer | 69 | Father | Retired | Illinois |
| 15 | Anna Kampmeyer | 65 | Mother | — | Illinois |
| 16 | Theo. Rupprecht | 55 | Head | Laborer | Illinois |
| 17 | Barbara Rupprecht | 45 | Wife | — | Illinois |
| 18 | Grace Rupprecht | 14 | Daughter | — | Illinois |
| 19 | Bertha Rupprecht | 12 | Daughter | — | Illinois |
| 20 | Leona Rupprecht | 8 | Daughter | — | Illinois |
| 21 | Joseph Rupprecht | 6 | Son | — | Illinois |
| 22 | Joseph Watson | 57 | Head | Laborer | Illinois |
| 23 | Ruth Watson | 52 | Wife | — | Illinois |
| 24 | Carthell Watson | 19 | Daughter | — | Illinois |
| 25 | John L. Teece | 50 | Head | Loading | Illinois |
| 26 | Emma Teece | 48 | Wife | — | Illinois |
| 27 | Edward C. Dainton | 48 | Head | Digger | England |
| 28 | Verna Dainton | 38 | Wife | — | Illinois |
| 29 | Lyman C. Dainton | 16 | Son | — | Illinois |
| 30 | Esther Dainton | 8 | Daughter | — | Illinois |
| 31 | John Mackey THIS PERSON | 33 | Head | Driver | Indiana |
| 32 | Stella Mackey | 33 | Wife | — | Illinois |
| 33 | Maxine Mackey | 11 | Daughter | — | Illinois |
| 34 | Cathryn Mackey | 9 | Daughter | — | Illinois |
| 35 | John Mackey | 7 | Son | — | Illinois |
| 36 | Roscoe Weaver | 33 | Head | Laborer | Illinois |
| 37 | Bernice Weaver | 26 | Wife | — | Illinois |
| 38 | Raymond Weaver | 8 | Son | — | Illinois |
| 39 | Imogene Weaver | 5 | Daughter | — | Illinois |
| 40 | Bernice R. Weaver | 2 | Daughter | — | Illinois |
| 41 | Warren S. Weaver | 1 | Son | — | Illinois |
| 42 | James C. Mcmanemy | 42 | Head | Loader | Ohio |
| 43 | Ida L. Mcmanemy | 36 | Wife | — | Illinois |
| 44 | Mary Mcmanemy | 13 | Daughter | — | Illinois |
| 45 | Francis Mcmanemy | 10 | Daughter | — | Illinois |
| 46 | Edward Mcmanemy | 8 | Son | — | Illinois |
| 47 | Joseph Mcmanemy | 7 | Son | — | Illinois |
| 48 | Jane Mcmanemy | 5 | Daughter | — | Illinois |
| 49 | Delores Mcmanemy | 2 | Daughter | — | Illinois |
| 50 | Pauline Mcmanemy | 0 | Daughter | — | Illinois |
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)