Mary Nolan — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Hamilton-County, Ohio

Our Model Tree links this Mary Nolan across the 1920, 1930 and 1940 US Censuses in Hamilton-County, Ohio (XGBoost, ~Confirmed) — first a spouse (b.~1913), then head of a 4-person household.

Age 27 b. ~1913 Female Spouse Born: Kentucky Married

1940 Census Record Details

Census Year	1940
Location	Hamilton-County, Ohio
Surname	Nolan
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	27
Marital Status	Married
Birthplace	Kentucky
1935 Residence (City)	Covington
1935 Residence (County)	Kenton
Additional Details
Class of Worker	0
Highest Grade	H-2
1935 Residence	Kentucky
Birth State	Kentucky
Birth Country	United States
Birthplace (normalized)	kentucky
Township / Ward	Cincinnati
Est. Birth Year	~1913

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.

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

Name	Relation to head	Relative to Mary	Age	Birth yr
John Nolan	Head	—	29	~1911
Thomas Nolan	Son	—	1	~1939
Joseph Nolan	Son	—	4	~1936
Mary Nolan	Spouse	—	27	~1913

Census Appearances

1920

Butler, Ohio

Other, age 5

Butler, Ohio · implied b. ~1915 — 7 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Nolan
Given Name	Margery G.
Relationship to Head	Granddaughter
Sex	F
Color / Race	White
Age	5
Marital Status	Single
Birthplace	Kentucky
Father's Birthplace	Kentucky
Mother's Birthplace	Kentucky
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Kentucky
Birth Country	United States
Birthplace (normalized)	kentucky

1930

Butler, Ohio

Other, age 17

Butler, Ohio · implied b. ~1913 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Nolan
Given Name	Mary
Relationship to Head	Boarder
Sex	F
Color / Race	White
Age	17
Marital Status	Married
Birthplace	Kentucky
Age at First Marriage	15
Father's Birthplace	Kentucky
Mother's Birthplace	Kentucky
Occupation	none
Class of Worker	W
Can Read/Write	Yes
Birth State	Kentucky
Birth Country	United States
Birthplace (normalized)	kentucky

1940

Hamilton-County, Ohio

Spouse, age 27

Hamilton-County, Ohio · implied b. ~1913 — 4 household members

Surname	Nolan
Given Name	Mary
Relationship to Head	Wife
Sex	F
Color / Race	White
Age	27
Marital Status	Married
Birthplace	Kentucky
1935 Residence (City)	Covington
1935 Residence (County)	Kenton
Class of Worker	0
Highest Grade	H-2
1935 Residence	Kentucky
Birth State	Kentucky
Birth Country	United States
Birthplace (normalized)	kentucky

Model Tree

Linked across censuses

Our Model Tree links Mary Nolan 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 Nolan

Spouse · 1940 · age 27 · b. ~1913 · Ohio

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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 — Hamilton-County, Ohio Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-03188-00618)

Line	Name	Age	Relation	Occupation	Birthplace
1	Florence L Brill	31	Daughter	Typist	Ohio
2	Erwin L Brill	29	Son	Pressman	Ohio
3	Carl Lingo	28	Head	Draftsman	Ohio
4	Roberta Lingo	27	Wife	—	Indiana
5	Wayne Lingo	1	Son	—	Ohio
6	John Nolan	29	Head	Credit Manager	Ohio
7	Mary Nolan THIS PERSON	27	Wife	—	Kentucky
8	Joseph Nolan	4	Son	—	Ohio
9	Thomas Nolan	1	Son	—	Ohio
10	Dominic Ziccardi	27	Head	Bookkeeper	Ohio
11	Marie Ziccardi	27	Wife	—	Ohio
12	William J. Flamm	31	Head	City Fireman	Ohio
13	Elda Flamm	31	Wife	—	Ohio
14	Barry Flamm	6	Son	—	Ohio
15	Gary Flamm	4	Son	—	Ohio
16	Donald Flamm	2	Son	—	Ohio
17	Elda Jean Flamm	1	Daughter	—	Ohio
18	Robert J. Dorney	69	Head	Watchman	Ohio
19	Ellen F. Dorney	70	Wife	—	Ohio
20	Joseph G. Dorney	36	Head	Clerk	Ohio
21	Gertrude Dorney	37	Wife	—	Ohio
22	Sheila Ann Dorney	3	Daughter	—	Ohio
23	Rosemary Dorney	2	Daughter	—	Ohio
24	William E. Cramer	65	Head	Attendant	Kentucky
25	Margaret Cramer	65	Wife	—	Ohio
26	Oscar Easter	38	Son-in-law	Auto Mechanic	Ohio
27	Verna Easter	36	Daughter	—	Ohio
28	Mary Glenke	53	Head	—	Irish Free State
29	Marie Glenke	26	Daughter	Elevator Oper	Ohio
30	Mary Jennings	66	Cousin	—	Irish Free State
31	Joseph Fitzgerald	28	Son-in-law	Collector	Ohio
32	Helen Fitzgerald	24	Daughter	—	Ohio
33	Patricia Fitzgerald	1	Granddaughter	—	Ohio
34	Leola Von Hagel	57	Head	—	Ohio
35	Ida Von Hagel	59	Partner	Proprietor	Ohio
36	Alvina Von Hagel	48	Partner	Office Clerk	Ohio
37	Matilda Flannery	60	Head	—	Ohio
38	William Flannery	33	Son	—	Ohio
39	Edmund Flannery	31	Son	Meat Cutter	Ohio
40	Charles Flannery	27	Son	Delivery Boy	Ohio

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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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