John Donovan — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Montgomery-County, Ohio

Our Model Tree links this John Donovan across the 1920, 1930 and 1940 US Censuses in Montgomery-County, Ohio (XGBoost, ~Confirmed) — first a head (b.~1890), then head of a 6-person household.

Age 50 b. ~1890 Male Head Born: Ohio Married

1940 Census Record Details

Census Year	1940
Location	Montgomery-County, Ohio
Surname	Donovan
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	50
Marital Status	Married
Birthplace	Ohio
1935 Residence (City)	Dayton
1935 Residence (County)	Montgomery
Additional Details
Occupation	Moulder
Industry	Iron Foundry
Class of Worker	PW
Hours Worked	40
Income (1939)	960
Highest Grade	No 8
1935 Residence	Same place
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio
Occupation	Moulder
Township / Ward	Dayton
Est. Birth Year	~1890

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.

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

Name	Relation to head	Relative to John	Age	Birth yr
Patricia Donovan	Daughter	—	17	~1923
Eileen Donovan	Daughter	—	21	~1919
Eileen Donovan	Daughter	—	20	~1920
John Donovan	Head	—	50	~1890
John Donovan	Son	—	9	~1931
May Donovan	Spouse	—	47	~1893

Census Appearances

1920

Montgomery, Ohio

Head, age 30

Montgomery, Ohio · implied b. ~1890 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Donovan
Given Name	John P
Relationship to Head	Head
Sex	M
Color / Race	White
Age	30
Marital Status	Married
Birthplace	Ohio
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Occupation	Moulder
Industry	General
Class of Worker	W
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	English
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

1930

Montgomery, Ohio

Head, age 40

Montgomery, Ohio · implied b. ~1890 — 5 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Donovan
Given Name	John G
Relationship to Head	Head
Sex	M
Color / Race	White
Age	40
Marital Status	Married
Birthplace	Ohio
Age at First Marriage	28
Father's Birthplace	Ireland
Mother's Birthplace	Ireland
Occupation	Molder
Industry	Iron
Class of Worker	W
Can Read/Write	Yes
Home Owned/Rented	O
Home Value / Rent	3000
Veteran	No
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

1940

Montgomery-County, Ohio

Head, age 50

Montgomery-County, Ohio · implied b. ~1890 — 6 household members

Surname	Donovan
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	50
Marital Status	Married
Birthplace	Ohio
1935 Residence (City)	Dayton
1935 Residence (County)	Montgomery
Occupation	Moulder
Industry	Iron Foundry
Class of Worker	PW
Hours Worked	40
Income (1939)	960
Highest Grade	No 8
1935 Residence	Same place
Birth State	Ohio
Birth Country	United States
Birthplace (normalized)	ohio

Model Tree

Linked across censuses

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

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This person

Anchor record

John Donovan

Head · 1940 · age 50 · b. ~1890 · 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 — Montgomery-County, Ohio Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-03256-00769)

Line	Name	Age	Relation	Occupation	Birthplace
1	Robert Howell	2	Son	—	Ohio
2	Patricia Howell	1	Daughter	—	Ohio
3	Frank Couts	43	Head	Metal Repair Man	Ohio
4	Jessie Couts	39	Wife	—	Ohio
5	Judy Palmer Couts	22	Son	Eating	Ohio
6	James Couts	21	Son	—	Ohio
7	Martha Couts	14	Daughter	—	Ohio
8	Alfred Kingery	18	Lodger	—	Ohio
9	Antonia Spaniel	52	Head	Service Man	Italy
10	Daisy Spaniel	42	Wife	—	Virginia
11	Bruno C. Spaniel	18	Son	Baker	Ohio
12	Ralph V. Spaniel	12	Son	—	Ohio
13	James E. Spaniel	9	Son	—	Ohio
14	Virginia Spaniel	7	Daughter	—	Ohio
15	John Donovan THIS PERSON	50	Head	Moulder	Ohio
16	May Q. Donovan	47	Wife	—	New York
17	Eileen F. Donovan	21	Daughter	Telephone Operator	Ohio
18	Eileen F. Donovan	20	Daughter	—	Ohio
19	Patricia Donovan	17	Daughter	—	Ohio
20	John Jr. Donovan	9	Son	—	Ohio
21	Howard Riser	66	Head	Stock Clerk	Ohio
22	Catherine Riser	62	Wife	—	Ohio
23	Robert Wallenhorst	36	Head	Locomotive Fireman	Ohio
24	Elizabeth Wallenhorst	30	Wife	—	Ohio
25	Edward C. Withers	66	Head	Janitor	Kentucky
26	Hortense Withers	60	Wife	—	Ohio
27	Edith Hager	30	Daughter	Inspector	Ohio
28	Archie Hager	30	Son-in-law	Retail Salesman	Indiana
29	Ruth Morell	17	Daughter	—	Ohio
30	Emma Shiney	68	Head	—	Kentucky
31	George Shiney	45	Son	—	Ohio
32	Frank Kelley	45	Head	Machine Operator	Ohio
33	Lorena Kelley	42	Wife	—	Kentucky
34	Magdalene Mallonig	64	Head	—	Austria
35	Magdalene Mallonig	43	Daughter	Teacher	Michigan
36	Rose Mallonig	40	Daughter	Teacher	Ohio
37	Edward Mallonig	25	Son	—	Ohio
38	Arthur Mallonig	22	Son	—	Ohio
39	Robert Mallonig	17	Son	—	Ohio
40	William Cunningham	67	Head	Laborer	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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