Mary Casey — 1920 US Census Record

Linked across censuses

1920 United States Federal Census · Cook, Illinois

Our Model Tree links this Mary Casey across the 1920, 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a head (b.~1867), then head of a 5-person household.

Age 53 b. ~1867 Female Head Born: Illinois Widowed

1920 Census Record Details

Census Year	1920
Location	Cook, Illinois
Surname	Casey
Given Name	Mary
Relationship to Head	Head
Sex	F
Color / Race	White
Age	53
Marital Status	Widowed
Birthplace	Illinois
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Additional Details
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	English
Birth State	Illinois
Birth Country	United States
Birthplace (normalized)	illinois
Township / Ward	City Of Chicago
Est. Birth Year	~1867

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 1920 census.

Name	Relation to head	Relative to Mary	Age	Birth yr
Marie Casey	Daughter	—	24	~1896
Mildred Casey	Daughter	—	22	~1898
Olive Casey	Daughter	—	20	~1900
Mary Casey	Head	—	53	~1867
Lester Casey	Son	—	16	~1904

Census Appearances

1920

Cook, Illinois

Head, age 53

Cook, Illinois · implied b. ~1867 — 5 household members

Surname	Casey
Given Name	Mary
Relationship to Head	Head
Sex	F
Color / Race	White
Age	53
Marital Status	Widowed
Birthplace	Illinois
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	English
Birth State	Illinois
Birth Country	United States
Birthplace (normalized)	illinois

1930

Cook, Illinois

Other, age 64

Cook, Illinois · implied b. ~1866 — 2 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Casey
Given Name	Mary
Relationship to Head	Mother
Sex	F
Color / Race	White
Age	64
Marital Status	Widowed
Birthplace	Illinois
Father's Birthplace	Germany
Mother's Birthplace	Germany
Occupation	none
Can Read/Write	Yes
Birth State	Illinois
Birth Country	United States
Birthplace (normalized)	illinois

1940

Cook-County, Illinois

Other, age 74

Cook-County, Illinois · implied b. ~1866 — 38 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Casey
Given Name	Mary
Relationship to Head	Inmate
Sex	F
Color / Race	White
Age	74
Marital Status	Single
Birthplace	Illinois
1935 Residence (City)	Norwood Park Twp
1935 Residence (County)	Cook
Occupation	9 03
Highest Grade	No 0
1935 Residence	Same place
Birth State	Illinois
Birth Country	United States
Birthplace (normalized)	illinois

Model Tree

Linked across censuses

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

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This person

Anchor record

Mary Casey

Head · 1920 · age 53 · b. ~1867 · Illinois

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Confirmed / household (~0.90+) Probable / derived (~0.65–0.89) Candidate (<0.65, unverified)

Original Census Page

1920 US Federal Census — Cook, Illinois Open full size

Page Contents

50 people indexed on this census page (ia:1920:14thcensusofpopu308unit:0280)

Line	Name	Age	Relation	Occupation	Birthplace
1	Edward C. Hayes	48	Head	Electrician	Ireland
2	Margaret J. Hayes	46	Wife	—	Illinois
3	Mary Casey THIS PERSON	53	Head	—	Illinois
4	Marie Casey	24	Daughter	Clerk	Illinois
5	Mildred Casey	22	Daughter	Stenographer	Illinois
6	Olive Casey	20	Daughter	Stenographer	Illinois
7	Lester Casey	16	Son	Bookkeeper	Illinois
8	Anna Mcginn	54	Head	—	Wisconsin
9	Margaret Mcginn	25	Daughter	Box Maker	Illinois
10	John Mcginn	20	Son	Accountant	Illinois
11	James Mcginn	20	Son	Timekeeper	Illinois
12	Mader Lorette Mcginn	26	Niece	Chief Operator	Iowa
13	Sophia Schwartz	35	Head	Store Keeper	Missouri
14	Walter Schwartz	10	Son	—	Illinois
15	Otto Bierer	40	Brother	Miller	Germany
16	George F. Miller	37	Head	Carpenter	Illinois
17	Mary E. Miller	37	Wife	—	Illinois
18	Asa Cassill	28	Head	Shipping Clerk	Iowa
19	Estel Cassill	23	Wife	—	Indiana
20	Amy Cassill	2	Daughter	—	Illinois
21	John Carroll	50	Head	Laborer	Ireland
22	Margaret Carroll	50	Wife	—	Ireland
23	Margaret Carroll	22	Daughter	Stenographer	Illinois
24	Catherine Carroll	21	Daughter	Bookkeeper	Illinois
25	Anna Carroll	19	Daughter	Operator	Illinois
26	Michael Carroll	17	Son	Clerk	Illinois
27	Helen Carroll	14	Daughter	—	Illinois
28	Johanna Carroll	14	Daughter	—	Illinois
29	John Gallagher	46	Head	Butcher	Illinois
30	Winifred Gallagher	40	Wife	—	Ireland
31	Joseph Gallagher	8	Son	—	Illinois
32	Simon Shannon	53	Head	Conductor	Ireland
33	Mary Shannon	46	Wife	—	Ireland
34	Albert C Bolteck	29	Head	Motorman	Illinois
35	Lillian Bolteck	24	Wife	—	Illinois
36	Glenn Bolteck	2	Daughter	—	Illinois
37	Lorraine Bolteck	0	Daughter	—	Illinois
38	Henry Kamp	61	Head	Tailor	Holland
39	Mary Kamp	51	Wife	—	Holland
40	Clara Kamp	21	Daughter	File Clerk	Illinois
41	Edward Kamp	17	Son	Clerk	Illinois
42	Henry N. Kamp	55	Cousin	Teamster	Holland
43	Joseph Cardinelli	33	Head	Laborer	Italy
44	Assunta Cardinelli	33	Wife	—	Italy
45	Eugene Cardinelli	5	Son	—	Italy
46	Polly Cardinelli	10	Daughter	—	Italy
47	Dorothy Cardinelli	7	Daughter	—	Illinois
48	Samuel Cardinelli	1	Son	—	Illinois
49	Martin Deacey	46	Head	Laborer	Ireland
50	Catherine Deacey	46	Wife	—	Ireland

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About This Record & Model Tree

This record was independently indexed by YourRoots from the 1920 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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