John Chambers — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Trumbull-County, Ohio

Our Model Tree links this John Chambers across the 1930 and 1940 US Censuses in Trumbull-County, Ohio (XGBoost, ~Confirmed) — first a head (b.~1887), then head of a 8-person household.

Age 53 b. ~1887 Male Head Born: Maryland Married

1940 Census Record Details

Census Year	1940
Location	Trumbull-County, Ohio
Surname	Chambers
Given Name	John P
Relationship to Head	Head
Sex	M
Color / Race	White
Age	53
Marital Status	Married
Birthplace	Maryland
1935 Residence (City)	Niles City
1935 Residence (County)	Trumbull
Additional Details
Occupation	Millwright
Industry	Steel Mill
Class of Worker	PW
Hours Worked	32
Income (1939)	1900
Highest Grade	No 8
1935 Residence	Same place
Birth State	Maryland
Birth Country	United States
Birthplace (normalized)	maryland
Occupation	Millwright
Township / Ward	Niles City
Est. Birth Year	~1887

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.

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

Name	Relation to head	Relative to John	Age	Birth yr
Roselyn Chambers	Daughter	—	16	~1924
Lois Chambers	Daughter	—	5	~1935
Marguerite Chambers	Daughter	—	12	~1928
Patricia Chambers	Daughter	—	8	~1932
John Chambers	Head	—	53	~1887
Robert Chambers	Son	—	26	~1914
William Chambers	Son	—	20	~1920
Eva Chambers	Spouse	—	50	~1890

Census Appearances

1930

Trumbull, Ohio

Head, age 43

Trumbull, Ohio · implied b. ~1887 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Chambers
Given Name	John P.
Relationship to Head	Head
Sex	M
Color / Race	White
Age	43
Marital Status	Married
Birthplace	Maryland
Age at First Marriage	25
Father's Birthplace	Ireland
Mother's Birthplace	Maryland
Occupation	Mechanic
Industry	Steel Mill
Class of Worker	W
Can Read/Write	Yes
Home Owned/Rented	R
Home Value / Rent	25.00
Birth State	Maryland
Birth Country	United States
Birthplace (normalized)	maryland

1940

Trumbull-County, Ohio

Head, age 53

Trumbull-County, Ohio · implied b. ~1887 — 8 household members

Surname	Chambers
Given Name	John P
Relationship to Head	Head
Sex	M
Color / Race	White
Age	53
Marital Status	Married
Birthplace	Maryland
1935 Residence (City)	Niles City
1935 Residence (County)	Trumbull
Occupation	Millwright
Industry	Steel Mill
Class of Worker	PW
Hours Worked	32
Income (1939)	1900
Highest Grade	No 8
1935 Residence	Same place
Birth State	Maryland
Birth Country	United States
Birthplace (normalized)	maryland

Model Tree

Linked across censuses

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

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This person

Anchor record

John Chambers

Head · 1940 · age 53 · b. ~1887 · 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 — Trumbull-County, Ohio Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-03159-00109)

Line	Name	Age	Relation	Occupation	Birthplace
1	Alma Peters	12	Daughter	—	Ohio
2	Emma Gardner	39	Head	Housework	Hungary
3	Virginia Gardner	12	Daughter	—	Ohio
4	Betty Gardner	9	Daughter	—	Ohio
5	William Gardner	5	Son	—	Ohio
6	John Hajnik	45	Head	Millwright	Yugoslavia
7	Helen Hajnik	24	Wife	—	Michigan
8	William Hajnik	11	Son	—	Ohio
9	John Ronoch	42	Head	Boiler Fireman	Czechoslovakia
10	Sophia Ronoch	45	Wife	—	Hungary
11	Mary Ronoch	15	Daughter	—	Ohio
12	John Ronoch	14	Son	—	Ohio
13	Paul Ronoch	13	Son	—	Ohio
14	Dorothy Ronoch	6	Daughter	—	Ohio
15	George Ronoch	1	Son	—	Ohio
16	James Guire	50	Head	Furnace Man	Pennsylvania
17	Winifred Guire	48	Wife	—	Ohio
18	Paul Guire	24	Son	Stock Keeper	Ohio
19	John Guire	19	Son	Laborer	Ohio
20	Robert Guire	15	Son	—	Ohio
21	William Holmes	45	Head	Heater	Ohio
22	Fidilia Holmes	42	Wife	—	Ohio
23	William Holmes	19	Son	New Worker	Ohio
24	Thomas J O'Brien	52	Head	Shearman	Ohio
25	Mary E O'Brien	50	Wife	—	Hungary
26	Thomas Jr O'Brien	21	Son	Billet Handler	Ohio
27	Helen M O'Brien	19	Daughter	Clerk	Ohio
28	Catherine V O'Brien	18	Daughter	—	Ohio
29	Margaret M O'Brien	16	Daughter	—	Ohio
30	William E O'Brien	12	Son	—	Ohio
31	Theresa M O'Brien	11	Daughter	—	Ohio
32	John P Chambers THIS PERSON	53	Head	Millwright	Maryland
33	Eva Chambers	50	Wife	—	Maryland
34	Robert Chambers	26	Son	Laborer	Maryland
35	William Chambers	20	Son	Machinist	Pennsylvania
36	Roselyn Chambers	16	Daughter	—	Ohio
37	Marguerite Chambers	12	Daughter	—	Ohio
38	Patricia Chambers	8	Daughter	—	Ohio
39	Lois Anne Chambers	5	Daughter	—	Ohio
40	John B Roose	76	Head	—	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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