Mary Bates — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Cook-County, Illinois

Our Model Tree links this Mary Bates across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1876), then head of a 2-person household.

Age 64 b. ~1876 Female Head Born: Indiana Widowed

1940 Census Record Details

Census Year	1940
Location	Cook-County, Illinois
Surname	Bates
Given Name	Mary
Relationship to Head	head
Sex	F
Color / Race	White
Age	64
Marital Status	Widowed
Birthplace	Indiana
1935 Residence (City)	Chicago City
1935 Residence (County)	Cook
Additional Details
Income (1939)	0
Highest Grade	No 8
1935 Residence	Same house
Birth State	Indiana
Birth Country	United States
Birthplace (normalized)	indiana
Township / Ward	Chicago City
Est. Birth Year	~1876

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.

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

Name	Relation to head	Relative to Mary	Age	Birth yr
Mary Bates	Head	—	64	~1876
Gilbert Bates	Son	—	24	~1916

Census Appearances

1920

Cook, Illinois

Spouse, age 44

Cook, Illinois · implied b. ~1876 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Bates
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	44
Marital Status	Married
Birthplace	Indiana
Father's Birthplace	Bavaria
Mother's Birthplace	Bavaria
Occupation	none
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Indiana
Birth Country	United States
Birthplace (normalized)	indiana

1930

Cook, Illinois

Other, age 54

Cook, Illinois · implied b. ~1876 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Batus
Given Name	Mary
Relationship to Head	Wife-H
Sex	F
Color / Race	White
Age	54
Marital Status	Married
Birthplace	Indiana
Age at First Marriage	31
Father's Birthplace	Germany
Mother's Birthplace	Germany
Occupation	none
Can Read/Write	Yes
Birth State	Indiana
Birth Country	United States
Birthplace (normalized)	indiana

1940

Cook-County, Illinois

Head, age 64

Cook-County, Illinois · implied b. ~1876 — 2 household members

Surname	Bates
Given Name	Mary
Relationship to Head	head
Sex	F
Color / Race	White
Age	64
Marital Status	Widowed
Birthplace	Indiana
1935 Residence (City)	Chicago City
1935 Residence (County)	Cook
Income (1939)	0
Highest Grade	No 8
1935 Residence	Same house
Birth State	Indiana
Birth Country	United States
Birthplace (normalized)	indiana

Model Tree

Linked across censuses

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

Show:

This person

Anchor record

Mary Bates

Head · 1940 · age 64 · b. ~1876 · Illinois

★ You are viewing this record

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-t0627-00964-00617)

Line	Name	Age	Relation	Occupation	Birthplace
1	Lola Benedetti	22	wife	—	Illinois
2	Robert Benedetti	1	son	—	Illinois
3	Joe Benedetti	52	head	Shipping Clerk	Italy
4	Augusta Benedetti	49	wife	—	Italy
5	Diana Benedetti	14	daughter	—	Illinois
6	Barbara Zeck	57	head	—	Illinois
7	Cecelia Zeck	24	daughter	Bill Clerk	Illinois
8	Herbert Zeck	23	son	Draftsman	Illinois
9	Bernadine Zeck	22	daughter	Packer	Illinois
10	Richard Zeck	15	son	—	Illinois
11	Mary Bates THIS PERSON	64	head	—	Indiana
12	Gilbert Bates	24	son	Shipping Clerk	Illinois
13	Anna Dahlke	51	head	—	Illinois
14	Emo Dahlke	26	son	Assistant Chemist	Illinois
15	Bernice Dahlke	22	daughter	Coil Winder	Illinois
16	Ruth Dahlke	19	daughter	Clerk, Sales	Illinois
17	Charles Gremke	63	uncle	—	Germany
18	Antonite Pompouski	52	head	—	Poland
19	Irene Pompouski	26	daughter	Adjuster	Illinois
20	Jerry Pompouski	22	son	Baker Helper	Illinois
21	Elsie Zralinski	28	daughter	Switch Board Operator	Illinois
22	John Zralinski	6	son	—	Illinois
23	Anthony Peterson	37	head	Dentist	Illinois
24	Lillian Peterson	29	wife	—	Illinois
25	Joan Peterson	4	daughter	—	Illinois
26	John Lloyd	67	father	—	Illinois
27	Guido Puccini	44	head	Drill Press Operator	Italy
28	Clara Puccini	43	wife	—	Italy
29	Dorothy Puccini	15	daughter	—	Illinois
30	Romolo Porci	45	head	Laborer	Italy
31	Lena Porci	39	wife	—	Italy
32	Mary Porci	18	daughter	Sheet Poster	Italy
33	Lola Porci	14	daughter	—	Pennsylvania
34	Silvano Porci	12	son	—	Illinois
35	Aurelio Bonistalli	47	head	Truck Driver	Italy
36	Irma Bonistalli	40	wife	—	Italy
37	Raymond Bonistalli	17	son	—	Illinois
38	Loraine Bonistalli	9	daughter	—	Illinois
39	John O'Connor	35	head	Freight Router	Illinois
40	Anne O'Connor	27	wife	—	Illinois

Search for Mary Bates

All Mary Bates Census Records Discover Bates Family Tree

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)

Report inaccurate data