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John Mckenzie — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this John Mckenzie across the 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a son (b.~1917), then head of a 9-person household.
Age 13
b. ~1917
Male
Son
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | McKenzie |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Canada-Eng |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1917 |
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.
9 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Donald Mckenzie | Head | — | 48 | ~1882 |
| Luke Mckenzie | Son | — | 11 | ~1919 |
| John Mckenzie | Son | — | 13 | ~1917 |
| William Mckenzie | Son | — | 7 | ~1923 |
| Katherine Mckenzie | Daughter | — | 9 | ~1921 |
| Helen Mckenzie | Spouse | — | 38 | ~1892 |
| James Mckenzie | Son | — | 9 | ~1921 |
| Mary Maloney | Other | — | 68 | ~1862 |
| Robert Mckenzie | Son | — | 3 | ~1927 |
Census Appearances
1930
Cook, Illinois
Son, age 13
Cook, Illinois · implied b. ~1917 — 9 household members
| Surname | McKenzie |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Canada-Eng |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 23
Cook-County, Illinois · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | MacKenzie |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | Machinist |
| Industry | Machinery |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 540 |
| Highest Grade | C 3 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Mckenzie across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Mckenzie
Son · 1930 · age 13 · b. ~1917 · Illinois
★ You are viewing this record
Sibling
Robert Mckenzie
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Mckenzie
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Luke Mckenzie
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Mckenzie
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Katherine Mckenzie
Sibling · 1930 · age 9
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 — Cook, Illinois
Open full size
1930 US Federal Census — Cook, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel459:0930)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Julius Blum | 48 | Head | Salesman | Russia |
| 52 | Minnie Blum | 48 | Wife | — | Russia |
| 53 | Mildred Blum | 27 | Daughter | Saleslady | Russia |
| 54 | Abe Greenblatt | 30 | Son-in-law | Salesman | Illinois |
| 55 | Betty Greenblatt | 25 | Daughter | — | Russia |
| 56 | Ida Greenblatt | 5 | Granddaughter | — | Illinois |
| 57 | Anna Blum | 11 | Daughter | — | Illinois |
| 58 | James Mcneil | 58 | Head | Bricklayer | Nebraska |
| 59 | Bridget Mcneil | 56 | Wife | — | Irish Free State |
| 60 | Mary Mcneil | 23 | Daughter | Operator | Illinois |
| 61 | Irene Mcneil | 19 | Daughter | — | Illinois |
| 62 | James Jr. Mcneil | 25 | Son | Bricklayer | Illinois |
| 63 | Mary Mcneil | 24 | Daughter-in-law | — | Indiana |
| 64 | Patricia Mcneil | 3 | Granddaughter | — | Illinois |
| 65 | John Felton | 26 | Cousin | Chauffeur | Irish Free State |
| 66 | Linda Johnson | 55 | Head | — | Illinois |
| 67 | Howard Johnson | 24 | Son | Printer | Illinois |
| 68 | Andrew Jameson | 80 | Father | — | Sweden |
| 69 | Irene Hessen | 37 | Daughter | Nurse | Illinois |
| 70 | Rosebud Hessen | 18 | Granddaughter | — | Illinois |
| 71 | Minnie Hesse | 56 | Lodger | — | Indiana |
| 72 | Minnie Davies | 64 | Lodger | — | Massachusetts |
| 73 | Donald Mckenzie | 48 | Head | Blacksmith | Canada-Eng |
| 74 | Helen Mckenzie | 38 | Wife | — | Illinois |
| 75 | John Mckenzie THIS PERSON | 13 | Son | — | Illinois |
| 76 | Luke Mckenzie | 11 | Son | — | Illinois |
| 77 | James Mckenzie | 9 | Son | — | Illinois |
| 78 | Katherine Mckenzie | 9 | Daughter | — | Illinois |
| 79 | William Mckenzie | 7 | Son | — | Illinois |
| 80 | Robert Mckenzie | 3 | Son | — | Illinois |
| 81 | Mary Maloney | 68 | Aunt | — | Illinois |
| 82 | James Klebbins | 37 | Head | Labourer | Illinois |
| 83 | Louise Klebbins | 32 | Wife | — | Wisconsin |
| 84 | June Klebbins | 10 | Daughter | — | Illinois |
| 85 | Max Plotkin | 55 | Head | Shipping Clerk | Russia |
| 86 | Sarah Plotkin | 50 | Wife | — | Russia |
| 87 | Alvin Plotkin | 17 | Son | — | Illinois |
| 88 | Hannah Plotkin | 15 | Daughter | — | Illinois |
| 89 | Lowery Plotkin | 13 | Son | — | Illinois |
| 90 | Isadore Rubin | 38 | Head | Proprietor | Poland |
| 91 | Anna Rubin | 38 | Wife | — | Poland |
| 92 | Helen Rubin | 8 | Daughter | — | Illinois |
| 93 | Ettebelle Rubin | 2 | Daughter | — | Illinois |
| 94 | Dominico Del Principe | 59 | Head | Laborer | Italy |
| 95 | Vincenza Del Principe | 52 | Wife | — | Italy |
| 96 | Stella Del Principe | 21 | Daughter | — | Illinois |
| 97 | Samuel Del Principe | 18 | Son | — | Illinois |
| 98 | Mary Del Principe | 17 | Daughter | Milliner | Illinois |
| 99 | Samuel Weisser | 38 | Head | Proprietor | Russia |
| 100 | Anna Weisser | 36 | Wife | — | Russia |
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)