WM
William Mckinney — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this William Mckinney across the 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 9-person household.
Age 5
b. ~1925
Male
Son
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | McKinney |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Additional Details | |
| Occupation | none |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago |
| Est. Birth Year | ~1925 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| William Mckinney | Son | — | 5 | ~1925 |
| John Mckinney | Son | — | 4 | ~1926 |
| Hannah Johnson | Other | — | 39 | ~1891 |
| Mack Mckinney | Other | — | 30 | ~1900 |
| Margaret Mckinney | Daughter | — | 4 | ~1926 |
| Ethel Mckinney | Spouse | — | 23 | ~1907 |
| Claude Mckinney | Son | — | 3 | ~1927 |
| Marvin Mckinney | Head | — | 28 | ~1902 |
| William Mckinney | Son | — | 7 | ~1923 |
Census Appearances
1930
Cook, Illinois
Son, age 5
Cook, Illinois · implied b. ~1925 — 9 household members
| Surname | McKinney |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Occupation | none |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 15
Cook-County, Illinois · implied b. ~1925 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McKinney |
| Given Name | Willie |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 15 |
| Marital Status | Separated |
| Birthplace | Illinois |
| 1935 Residence (City) | CHICAGO |
| 1935 Residence (County) | COOK |
| Highest Grade | No 8 |
| 1935 Residence | Same Place |
| 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 William Mckinney across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Mckinney
Son · 1930 · age 5 · b. ~1925 · Illinois
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Sibling
Claude Mckinney
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Mckinney
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Mckinney
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Mckinney
Sibling · 1930 · age 4
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:illinoiscensus00reel450:0027)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Gablino Casillas | 47 | Head | Labor | Mexico |
| 2 | Amelia Casillas | 46 | Wife | None | Mexico |
| 3 | Paul Casillas | 5 | Son | None | Illinois |
| 4 | Gabron Casillas | 3 | Son | None | Illinois |
| 5 | Joe Gonzales | 19 | Boarder | None | Illinois |
| 6 | Loupe Gonzales | 17 | Boarder | None | Illinois |
| 7 | Margarita Gonzales | 14 | Boarder | None | Kansas |
| 8 | Rosa Lumis | 55 | Head | None | Prussia |
| 9 | Irving Lumis | 24 | Son | None | Illinois |
| 10 | Marvin Mckinney | 28 | Head | Labor | Tennessee |
| 11 | Ethel Mckinney | 23 | Wife | None | Kentucky |
| 12 | William Mckinney | 7 | Son | None | Arkansas |
| 13 | Margaret Mckinney | 4 | Daughter | None | Illinois |
| 14 | Claude Mckinney | 3 | Son | None | Illinois |
| 15 | Mack Mckinney | 30 | Brother | Labor | Tennessee |
| 16 | William Mckinney THIS PERSON | 5 | Son | None | Illinois |
| 17 | John Mckinney | 4 | Son | None | Illinois |
| 18 | Hannah Johnson | 39 | Mother-in-law | Dish Washer | Tennessee |
| 19 | Simon Pickett | 40 | Head | Porter | Mississippi |
| 20 | Cora Pickett | 34 | Wife | Maid | Mississippi |
| 21 | Samuel Norris | 31 | Head | None | S. Carolina |
| 22 | Irene Norris | 28 | Wife | None | S. Carolina |
| 23 | Vera Norris | 11 | Daughter | None | S. Carolina |
| 24 | Ruth Norris | 7 | Daughter | None | S. Carolina |
| 25 | Jannie Norris | 5 | Daughter | None | Illinois |
| 26 | Velma Norris | 3 | Daughter | None | Illinois |
| 27 | Elizabeth Norris | 1 | Daughter | None | Illinois |
| 28 | Ray Gonzales | 30 | Head | Labor | Mexico |
| 29 | Magdalena Gonzales | 27 | Wife | None | Mexico |
| 30 | John Gonzales | 9 | Son | None | Oklahoma |
| 31 | Andrea Gonzales | 7 | Daughter | None | Illinois |
| 32 | Mercedes Gonzales | 5 | Daughter | None | Illinois |
| 33 | Esther Gonzales | 3 | Daughter | None | Illinois |
| 34 | Louise Gonzales | 1 | Daughter | None | Illinois |
| 35 | Pete Aguirre | 34 | Bro-in-law | None | Mexico |
| 36 | Joe Yosman | 30 | Boarder | Labor | Mexico |
| 37 | David Lachman | 32 | Head | Peddler | Europe |
| 38 | Yetta Lachman | 32 | Wife | None | Europe |
| 39 | Martin Lachman | 3 | Son | None | Illinois |
| 40 | Ben Sawyer | 52 | Head | Labor | Europe |
| 41 | Frida Sawyer | 50 | Wife | None | Europe |
| 42 | Samuel Sawyer | 25 | Son | None | Europe |
| 43 | Frank Sawyer | 20 | Son | Sell Paper | Europe |
| 44 | Ida Sawyer | 16 | Daughter | None | Illinois |
| 45 | Mollie Sawyer | 14 | Daughter | None | Illinois |
| 46 | Louis Sofsky | 40 | Head | None | Europe |
| 47 | Rachel Sofsky | 40 | Wife | None | Europe |
| 48 | Chaim Rudman | 56 | Boarder | Presser | Europe |
| 49 | Moses Rudman | 30 | Boarder | None | Europe |
| 50 | Fannie Jacobs | 20 | Head | Clerk | 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)