James Cox — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Marion-County, Indiana

Our Model Tree links this James Cox across the 1920, 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed) — first a head (b.~1883), then head of a 4-person household.

Age 57 b. ~1883 Male Head Born: England Married

1940 Census Record Details

Census Year	1940
Location	Marion-County, Indiana
Surname	Cox
Given Name	James
Relationship to Head	Head
Sex	M
Color / Race	White
Age	57
Marital Status	Married
Birthplace	England
1935 Residence (City)	Indianapolis
1935 Residence (County)	Marion
Naturalization Status	Naturalized
Additional Details
Occupation	Fireman
Industry	City Fire Dept
Class of Worker	GW
Hours Worked	84
Income (1939)	2016
Highest Grade	4
1935 Residence	Same House
Birth Country	England
Birthplace (normalized)	england
Occupation	Fireman
Township / Ward	Indianapolis
Est. Birth Year	~1883

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 James	Age	Birth yr
Catherine Cox	Daughter	—	26	~1914
James Cox	Head	—	57	~1883
James Cox	Son	—	19	~1921
Emma Cox	Spouse	—	49	~1891

Census Appearances

1920

Marion, Indiana

Head, age 32

Marion, Indiana · implied b. ~1888 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Cox
Given Name	James
Relationship to Head	head
Sex	M
Color / Race	White
Age	32
Marital Status	Married
Birthplace	England
Naturalization Status	Un
Father's Birthplace	England
Mother's Birthplace	England
Occupation	fireman-pipe
Industry	city fire depart
Class of Worker	w
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Mother Tongue	English
Home Owned/Rented	R
Birth Country	England
Birthplace (normalized)	england

1930

Marion, Indiana

Head, age 43

Marion, Indiana · implied b. ~1887 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Cox
Given Name	James
Relationship to Head	Head
Sex	M
Color / Race	White
Age	43
Marital Status	Married
Birthplace	England
Naturalization Status	Naturalized
Year of Immigration	1900
Age at First Marriage	26
Father's Birthplace	England
Mother's Birthplace	England
Occupation	Fireman
Industry	City
Class of Worker	W
Can Read/Write	Yes
Mother Tongue	English
Home Owned/Rented	R
Home Value / Rent	25.00
Radio Set	R
Birth Country	England
Birthplace (normalized)	england

1940

Marion-County, Indiana

Head, age 57

Marion-County, Indiana · implied b. ~1883 — 4 household members

Surname	Cox
Given Name	James
Relationship to Head	Head
Sex	M
Color / Race	White
Age	57
Marital Status	Married
Birthplace	England
1935 Residence (City)	Indianapolis
1935 Residence (County)	Marion
Naturalization Status	Naturalized
Occupation	Fireman
Industry	City Fire Dept
Class of Worker	GW
Hours Worked	84
Income (1939)	2016
Highest Grade	4
1935 Residence	Same House
Birth Country	England
Birthplace (normalized)	england

Model Tree

Linked across censuses

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

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This person

Anchor record

James Cox

Head · 1940 · age 57 · b. ~1883 · Indiana

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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 — Marion-County, Indiana Open full size

Page Contents

39 people indexed on this census page (nara:1940:m-t0627-01129-01045)

Line	Name	Age	Relation	Occupation	Birthplace
1	William J. Casey	67	Head	—	New York
2	Mable M. Casey	47	Wife	—	Indiana
3	George E. Daniels	29	Head	Letter Carrier	Indiana
4	Helen J. Daniels	22	Wife	—	Indiana
5	Leroy Cornett	54	Head	Proprietor	Indiana
6	Onie Cornett	49	Wife	Salesman	Indiana
7	Samuel Knarr	78	Father-in-law	Janitor	Indiana
8	Sarah Knarr	77	Mother-in-law	—	Indiana
9	Maude Lee Shelby	43	Lodger	—	Indiana
10	James Cox THIS PERSON	57	Head	Fireman	England
11	Emma E. Cox	49	Wife	—	Pennsylvania
12	Catherine C. Cox	26	Daughter	Technician	Indiana
13	James A. Cox	19	Son	—	Indiana
14	James J. Koors	45	Head	Pressman	Indiana
15	Mary Koors	45	Wife	—	Indiana
16	James A. Koors	19	Son	—	Indiana
17	Mary Jane Koors	15	Daughter	—	Indiana
18	Here Ends Block #19 Begins #20	None	—	—	—
19	George F. Pile	24	Head	Shipping Clerk	Indiana
20	Helen N. Pile	23	Wife	Book-Keeper	Indiana
21	John H. Hinds	41	Head	Auto Mechanic	Indiana
22	Opal M. Hinds	32	Wife	—	Missouri
23	Joan Hinds	3	Daughter	—	Indiana
24	Ray L. Kennedy	61	Head	Screw Boy	Indiana
25	Anna R. Kennedy	54	Wife	—	Indiana
26	Richard Strasser	42	Lodger	Catcher	Indiana
27	Elizabeth Wade	77	Lodger	—	Indiana
28	Francis F. Esselborn	28	Head	Proprietor	Indiana
29	Mary L. Esselborn	27	Wife	—	Indiana
30	Denis Elmore	22	Head	Attendant	Indiana
31	Elsie Elmore	19	Wife	—	Indiana
32	Joseph E. Norton	54	Head	Bus Driver	Indiana
33	Clara R. Norton	55	Wife	—	Indiana
34	Robert H. Heady	23	Head	Clerk	Indiana
35	Lauretta M. Heady	28	Wife	Stenographer	Pennsylvania
36	Clarence R. Null	49	Head	Rougher	Pennsylvania
37	Mable M. Null	48	Wife	—	Pennsylvania
38	William H. Harlow	68	Head	Salesman	Kentucky
39	Hattie L. Harlow	57	Wife	—	Kentucky

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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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