John Simpson — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Livingston-County, Michigan

Our Model Tree links this John Simpson across the 1920, 1930 and 1940 US Censuses in Livingston-County, Michigan (XGBoost, ~Confirmed) — first a head (b.~1900), then head of a 3-person household.

Age 40 b. ~1900 Male Head Born: Michigan Married

1940 Census Record Details

Census Year	1940
Location	Livingston-County, Michigan
Surname	Simpson
Given Name	John N
Relationship to Head	Head
Sex	M
Color / Race	White
Age	40
Marital Status	Married
Birthplace	Michigan
1935 Residence (City)	Green Oak Twp
1935 Residence (County)	Livingston
Additional Details
Occupation	crane operator
Industry	steel mill
Class of Worker	PW
Hours Worked	40
Income (1939)	1300
Highest Grade	H-2
1935 Residence	Same place
Birth State	Michigan
Birth Country	United States
Birthplace (normalized)	michigan
Occupation	Crane Operator
Township / Ward	Green Oak Twp
Est. Birth Year	~1900

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.

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

Name	Relation to head	Relative to John	Age	Birth yr
Rosemary Simpson	Daughter	—	13	~1927
John Simpson	Head	—	40	~1900
Helen Simpson	Spouse	—	38	~1902

Census Appearances

1920

Livingston, Michigan

Other, age 22

Livingston, Michigan · implied b. ~1898 — 7 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Simpson
Given Name	John
Relationship to Head	Laborer
Sex	M
Color / Race	White
Age	22
Marital Status	Single
Birthplace	Michigan
Father's Birthplace	Michigan
Mother's Birthplace	Michigan
Occupation	Laborer
Industry	Farm
Class of Worker	W
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Michigan
Birth Country	United States
Birthplace (normalized)	michigan

1930

Livingston, Michigan

Other, age 30

Livingston, Michigan · implied b. ~1900 — 3 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Simpson
Given Name	John
Relationship to Head	Boarder
Sex	M
Color / Race	White
Age	30
Marital Status	Married
Birthplace	Michigan
Age at First Marriage	22
Father's Birthplace	Michigan
Mother's Birthplace	Michigan
Occupation	Laborer
Industry	Farm
Class of Worker	W
Can Read/Write	Yes
Birth State	Michigan
Birth Country	United States
Birthplace (normalized)	michigan

1940

Livingston-County, Michigan

Head, age 40

Livingston-County, Michigan · implied b. ~1900 — 3 household members

Surname	Simpson
Given Name	John N
Relationship to Head	Head
Sex	M
Color / Race	White
Age	40
Marital Status	Married
Birthplace	Michigan
1935 Residence (City)	Green Oak Twp
1935 Residence (County)	Livingston
Occupation	crane operator
Industry	steel mill
Class of Worker	PW
Hours Worked	40
Income (1939)	1300
Highest Grade	H-2
1935 Residence	Same place
Birth State	Michigan
Birth Country	United States
Birthplace (normalized)	michigan

Model Tree

Linked across censuses

Our Model Tree links John Simpson 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 Simpson

Head · 1940 · age 40 · b. ~1900 · Michigan

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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 — Livingston-County, Michigan Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01780-00177)

Line	Name	Age	Relation	Occupation	Birthplace
1	Asher Buck	40	Head	Watchman	Kentucky
2	John N Simpson THIS PERSON	40	Head	Crane Operator	Michigan
3	Helen E Simpson	38	Wife	—	Michigan
4	Rosemary E Simpson	13	Daughter	—	Michigan
5	William W Myers	44	Head	Assembly	Michigan
6	Blossie Myers	35	Wife	—	Michigan
7	Warren W Myers	16	Son	—	Michigan
8	Jackalin H Myers	14	Daughter	—	Michigan
9	Robert G Myers	11	Son	—	Michigan
10	Theodore F Myers	8	Son	—	Michigan
11	Daniel K Myers	7	Son	—	Michigan
12	Clara Smith	70	Head	—	Michigan
13	Daniel Hodge	34	Head	Farmer	Michigan
14	Charlotte R Hodge	38	Wife	—	Michigan
15	Gilbert F Hodge	19	Son	Farm Laborer	Michigan
16	William E Hodge	16	Son	Delivery Boy	Michigan
17	Charles Hodge	14	Son	—	Michigan
18	Ernest E Hodge	12	Son	—	Michigan
19	Edward A Hodge	10	Son	—	Michigan
20	Lewis F Hodge	7	Son	—	Michigan
21	Leo A D Mccole	62	Head	Farmer	Michigan
22	Richard Wellenhaupt	39	Head	Carpenter	Michigan
23	Grace Wellenhaupt	36	Wife	—	Michigan
24	Minnie Lassen	52	Mother-in-law	—	Michigan
25	Charles E Goucher	70	Head	Tax Assessor	Michigan
26	Grace Goucher	66	Wife	—	Michigan
27	Ralph H Brighton	65	Head	Laborer	Michigan
28	Myrtle Brighton	66	Wife	—	Michigan
29	Mary Bair	66	Head	—	England
30	Frank Bartle	75	Head	—	Michigan
31	Myrtle Bartle	58	Wife	—	Michigan
32	Sonia Bates	70	Lodger	—	Canada-Eng
33	Albert R Deere	38	Head	Prop-Garage	England
34	Alice G Deere	38	Wife	—	Michigan
35	Kent D Deere	2	Son	—	Michigan
36	James B Townsend	58	Head	Electrician	Michigan
37	Emma Townsend	59	Wife	—	Michigan
38	E. G. Bacon	59	Head	Salesman	Michigan
39	Ethel J Bacon	54	Wife	—	Michigan
40	William T Halsted	39	Head	Clerk	Michigan

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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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