Margaret Brown — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Cook-County, Illinois

Our Model Tree links this Margaret Brown across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1887), then head of a 5-person household.

Age 53 b. ~1887 Female Spouse Born: Scotland Married

1940 Census Record Details

Census Year	1940
Location	Cook-County, Illinois
Surname	Brown
Given Name	Margaret
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	53
Marital Status	Married
Birthplace	Scotland
1935 Residence (City)	Chicago City
1935 Residence (County)	Cook
Naturalization Status	Alien
Additional Details
Highest Grade	8
1935 Residence	Same Place
Birth Country	Scotland
Birthplace (normalized)	scotland
Township / Ward	Chicago City
Est. Birth Year	~1887

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 1940 census.

Name	Relation to head	Relative to Margaret	Age	Birth yr
Marion Brown	Daughter	—	18	~1922
Michael Brown	Head	—	54	~1886
Thomas Brown	Son	—	20	~1920
David Brown	Son	—	2	~1938
Margaret Brown	Spouse	—	53	~1887

Census Appearances

1920

Cook, Illinois

Spouse, age 32

Cook, Illinois · implied b. ~1888 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Brown
Given Name	Margaret
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	32
Marital Status	Married
Birthplace	Scotland
Father's Birthplace	Scotland
Mother's Birthplace	Scotland
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	Scotch
Birth Country	Scotland
Birthplace (normalized)	scotland

1930

Cook, Illinois

Spouse, age 43

Cook, Illinois · implied b. ~1887 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Brown
Given Name	Margaret W
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	43
Marital Status	Married
Birthplace	Scotland
Naturalization Status	Naturalized
Year of Immigration	1911
Age at First Marriage	25
Father's Birthplace	Scotland
Mother's Birthplace	Scotland
Can Read/Write	Yes
Mother Tongue	English
Birth Country	Scotland
Birthplace (normalized)	scotland

1940

Cook-County, Illinois

Spouse, age 53

Cook-County, Illinois · implied b. ~1887 — 5 household members

Surname	Brown
Given Name	Margaret
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	53
Marital Status	Married
Birthplace	Scotland
1935 Residence (City)	Chicago City
1935 Residence (County)	Cook
Naturalization Status	Alien
Highest Grade	8
1935 Residence	Same Place
Birth Country	Scotland
Birthplace (normalized)	scotland

Model Tree

Linked across censuses

Our Model Tree links Margaret Brown across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.

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This person

Anchor record

Margaret Brown

Spouse · 1940 · age 53 · b. ~1887 · 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

40 people indexed on this census page (nara:1940:m-t0627-00939-00480)

Line	Name	Age	Relation	Occupation	Birthplace
41	Ruth Engstrom	16	Daughter	—	Illinois
42	June Engstrom	14	Daughter	—	Illinois
43	Cornelius Vanderbilt	53	Head	Proprietor	Illinois
44	Theresa Vanderbilt	54	Wife	—	Illinois
45	Jessie Mae Vanderbilt	23	Daughter	—	Illinois
46	Ruth Vanderbilt	16	Daughter	—	Illinois
47	Anton Van Wermeskerken	48	Head	Millwright	Holland
48	Anna Van Wermeskerken	45	Wife	—	Holland
49	Henry Van Wermeskerken	23	Son	Millwright	Illinois
50	Ted Van Wermeskerken	20	Son	Apprentice Electrician	Illinois
51	John Van Wermeskerken	15	Son	—	Illinois
52	Irene Van Wermeskerken	8	Daughter	—	Illinois
53	Anton Gustafson	49	Head	Steel Helper	Sweden
54	Judith Gustafson	57	Wife	—	Sweden
55	Mat Free	67	Head	Painter	Germany
56	Mary Free	61	Wife	—	Germany
57	John Free	35	Son	Advertising Clerk	Illinois
58	Laura Free	26	Daughter	Receptionist	Illinois
59	Charles H. Brown	39	Head	Asst. Foreman Telegraph	Scotland
60	Margaret Brown	39	Wife	—	Scotland
61	Helen M. Brown	13	Daughter	—	Illinois
62	Carl Hammarstrom	75	Head	—	Sweden
63	Anna Hammarstrom	67	Wife	—	Sweden
64	Katherine Brezinsky	50	Head	—	Lithuania
65	Frank Brezinsky	11	Son	—	Oklahoma
66	Constance Brezinsky	16	Daughter	Beauty Operator	Oklahoma
67	John Mezenski	27	Head	Helper	Oklahoma
68	Julia Mezenski	25	Daughter	Assembler	Oklahoma
69	Anthony Mezenski	27	Son	Shipping Clerk	Oklahoma
70	Victor Mezenski	20	Son	Shipping Clerk	Oklahoma
71	Katherine Mezenski	18	Daughter	Floor Worker	Oklahoma
72	Frank L. Brown	56	Head	Electrician	New Jersey
73	Edith E. Brown	51	Wife	—	Illinois
74	Michael Brown	54	Head	Bricklayer	Scotland
75	Margaret Brown THIS PERSON	53	Wife	—	Scotland
76	Thomas Brown	20	Son	Upholsterer	Scotland
77	Marion Brown	18	Daughter	—	Scotland
78	David Brown	2	Son	—	Illinois
79	Carl Johnson	45	Head	Painter	Sweden
80	Ida Johnson	45	Wife	—	Sweden

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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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