William Mckinney — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Cook-County, Illinois

Our Model Tree links this William Mckinney across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1893), then head of a 11-person household.

Age 47 b. ~1893 Male Head Born: Mississippi Married

1940 Census Record Details

Census Year	1940
Location	Cook-County, Illinois
Surname	McKinney
Given Name	William
Relationship to Head	Head
Sex	M
Color / Race	Black
Age	47
Marital Status	Married
Birthplace	Mississippi
1935 Residence (City)	Chicago
1935 Residence (County)	Cook
Additional Details
Occupation	Laborer
Industry	Building Project
Class of Worker	PW
Hours Worked	40
Income (1939)	480
Highest Grade	H 4
1935 Residence	Same place
Birth State	Mississippi
Birth Country	United States
Birthplace (normalized)	mississippi
Occupation	Laborer
Township / Ward	Chicago
Est. Birth Year	~1893

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.

11 people recorded at the same address in the 1940 census.

Name	Relation to head	Relative to William	Age	Birth yr
Jessie Mckinney	Spouse	—	37	~1903
Spougie Mckinney	Son	—	14	~1926
Henrietta Mckinney	Daughter	—	8	~1932
Leonard Mckinney	Son	—	5	~1935
Frances Mckinney	Daughter	—	15	~1925
Sylvester Mckinney	Son	—		~1940
William Mckinney	Head	—	47	~1893
Henry Mckinney	Son	—	10	~1930
Bernice Mckinney	Daughter	—	3	~1937
Jessie King	Other	—	34	~1906
Mary King	Other	—	15	~1925

Census Appearances

1930

Cook, Illinois

Head, age 32

Cook, Illinois · implied b. ~1898 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	McKinney
Given Name	William
Relationship to Head	Head
Sex	M
Color / Race	Black
Age	32
Marital Status	Married
Birthplace	Mississippi
Age at First Marriage	25
Father's Birthplace	Mississippi
Mother's Birthplace	Mississippi
Occupation	laborer
Industry	farm help
Class of Worker	W
Can Read/Write	Yes
Home Owned/Rented	R
Home Value / Rent	25
Radio Set	R
Veteran	No
Birth State	Mississippi
Birth Country	United States
Birthplace (normalized)	mississippi

1940

Cook-County, Illinois

Head, age 47

Cook-County, Illinois · implied b. ~1893 — 11 household members

Surname	McKinney
Given Name	William
Relationship to Head	Head
Sex	M
Color / Race	Black
Age	47
Marital Status	Married
Birthplace	Mississippi
1935 Residence (City)	Chicago
1935 Residence (County)	Cook
Occupation	Laborer
Industry	Building Project
Class of Worker	PW
Hours Worked	40
Income (1939)	480
Highest Grade	H 4
1935 Residence	Same place
Birth State	Mississippi
Birth Country	United States
Birthplace (normalized)	mississippi

Model Tree

Linked across censuses

Our Model Tree links William Mckinney across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.

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This person

Anchor record

William Mckinney

Head · 1940 · age 47 · b. ~1893 · Illinois

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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 — Cook-County, Illinois Open full size

Page Contents

39 people indexed on this census page (nara:1940:m-t0627-00923-00676)

Line	Name	Age	Relation	Occupation	Birthplace
1	William Mckinney THIS PERSON	47	Head	Laborer	Mississippi
2	Jessie Mckinney	37	Wife	Maid	Mississippi
3	Frances Mckinney	15	Daughter	New Worker	Mississippi
4	Spougie Mckinney	14	Son	—	Mississippi
5	Henry Mckinney	10	Son	—	Mississippi
6	Henrietta Mckinney	8	Daughter	—	Illinois
7	Leonard Mckinney	5	Son	—	Illinois
8	Bernice Mckinney	3	Daughter	—	Illinois
9	Sylvester Mckinney	0	Son	—	Illinois
10	Jessie King	34	Sister	Laundress	Mississippi
11	Mary A. King	15	Niece	New Worker	Michigan
12	Will A. Reed	64	Head	Laborer	Texas
13	Cora Reed	55	Wife	—	Texas
14	Eugene Reed	19	Daughter	—	Oklahoma
15	Willie Reed	17	Son	—	Oklahoma
16	Essie Reed	15	Daughter	—	Oklahoma
17	Sarah Walker	39	Head	—	Illinois
18	Robert Stival	58	Father	—	Kentucky
19	James Cavanaugh	44	Lodger	Mechanic	Illinois
20	George Washington	57	Lodger	Laborer	Tennessee
21	George May	73	Lodger	—	Mississippi
22	Lettie Graces	47	Lodger	Buffer	Mississippi
23	Mary Hyson	65	Head	—	Michigan
24	Aubrey Hyson	56	Husband	Clerk	Arkansas
25	James Mcknight	42	Lodger	Shipping Clerk	Iowa
26	Millie Sims	71	Lodger	—	Kansas
27	Susie Barnett	48	Head	—	Georgia
28	Luke Barnett	61	Husband	Laborer	Georgia
29	William Barnett	39	Nephew	Laborer	Georgia
30	Martha Hughes	60	Head	—	Louisiana
31	Edith Perry	40	Daughter	Maid	Louisiana
32	Gloria Hill	14	Lodger	—	Illinois
33	Edna Guskeiner	16	Lodger	—	Illinois
34	Theodore Hill	21	Lodger	New Worker	Illinois
35	George Guskeiner	19	Lodger	New Worker	New York
36	Clarence William	46	Head	Drayman	Louisiana
37	Elena William	37	Wife	Maid	Louisiana
38	Mary Talbot	49	Lodger	Maid	Mississippi
39	Lelia Rockett	55	Head	—	Alabama

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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)

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