John Duncan — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Essex-County, Massachusetts

Our Model Tree links this John Duncan across the 1920, 1930 and 1940 US Censuses in Essex-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1911), then head of a 4-person household.

Age 29 b. ~1911 Male Head Born: Connecticut Married

1940 Census Record Details

Census Year	1940
Location	Essex-County, Massachusetts
Surname	Duncan
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	29
Marital Status	Married
Birthplace	Connecticut
1935 Residence (City)	Beverly city
1935 Residence (County)	Essex
Additional Details
Occupation	Clerk
Industry	Retail sporting goods store
Class of Worker	PW
Hours Worked	40
Income (1939)	1600
Highest Grade	H-4
1935 Residence	Same house
Birth State	Connecticut
Birth Country	United States
Birthplace (normalized)	connecticut
Occupation	Clerk
Township / Ward	Beverly City
Est. Birth Year	~1911

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 John	Age	Birth yr
Nancy Duncan	Daughter	—	4	~1936
John Duncan	Head	—	29	~1911
John Duncan	Son	—	7	~1933
Eleanor Duncan	Spouse	—	28	~1912

Census Appearances

1920

Essex, Massachusetts

Other, age 9

Essex, Massachusetts · implied b. ~1911 — 6 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Duncan
Given Name	John
Relationship to Head	step son
Sex	M
Color / Race	White
Age	9
Marital Status	Single
Birthplace	Connecticut
Father's Birthplace	Connecticut
Mother's Birthplace	Connecticut
Occupation	none
Can Read	Yes
Can Write	Yes
Speaks English	Yes
Birth State	Connecticut
Birth Country	United States
Birthplace (normalized)	connecticut

1930

Essex, Massachusetts

Other, age 19

Essex, Massachusetts · implied b. ~1911 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Duncan
Given Name	John F
Relationship to Head	Step son
Sex	M
Color / Race	White
Age	19
Marital Status	Single
Birthplace	Connecticut
Father's Birthplace	Connecticut
Mother's Birthplace	Connecticut
Occupation	Musician
Industry	Orchestra
Class of Worker	W
Can Read/Write	Yes
Birth State	Connecticut
Birth Country	United States
Birthplace (normalized)	connecticut

1940

Essex-County, Massachusetts

Head, age 29

Essex-County, Massachusetts · implied b. ~1911 — 4 household members

Surname	Duncan
Given Name	John
Relationship to Head	Head
Sex	M
Color / Race	White
Age	29
Marital Status	Married
Birthplace	Connecticut
1935 Residence (City)	Beverly city
1935 Residence (County)	Essex
Occupation	Clerk
Industry	Retail sporting goods store
Class of Worker	PW
Hours Worked	40
Income (1939)	1600
Highest Grade	H-4
1935 Residence	Same house
Birth State	Connecticut
Birth Country	United States
Birthplace (normalized)	connecticut

Model Tree

Linked across censuses

Our Model Tree links John Duncan 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 Duncan

Head · 1940 · age 29 · b. ~1911 · Massachusetts

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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 — Essex-County, Massachusetts Open full size

Page Contents

39 people indexed on this census page (nara:1940:m-t0627-01578-00281)

Line	Name	Age	Relation	Occupation	Birthplace
41	Beatrice Hall	58	Wife	—	New Hampshire
42	Irving F. Bear	58	Head	Plumbers Apprentice	Massachusetts
43	Ethel Bear	54	Wife	—	Massachusetts
44	Harold W. Bear	35	Son	Plumber	Massachusetts
45	Oscar M. Fuller	36	Head	Merchandise	Maine
46	Constance Fuller	36	Wife	—	Massachusetts
47	Gloria Fuller	16	Daughter	—	Massachusetts
48	Charles Fuller	12	Son	—	Maine
49	Noah Goldberg	66	Head	—	Russia
50	Sadie Goldberg	62	Wife	—	Russia
51	Eva Goldberg	30	Daughter	Saleslady	Russia
52	Jeanette Goldberg	29	Daughter	Partner	Russia
53	Clyde F. Burns	50	Head	Toolmaker	Nova Scotia
54	Mary Burns	45	Wife	—	Nova Scotia
55	John Patch	30	Head	Ship Officer	Massachusetts
56	Helda Patch	29	Wife	Hairdresser	Massachusetts
57	Bennett, Julie Patch	55	Mother-in-law	—	Massachusetts
58	Mary Kent	52	Head	Clerk	Nova Scotia
59	Dorothy Kent	27	Daughter	Clerk	Massachusetts
60	William Kilbourne	72	Head	Clerk	Connecticut
61	Bessie E. Kilbourne	59	Wife	—	Connecticut
62	William Duncan	32	Head	Commercial Designer	Connecticut
63	John Duncan THIS PERSON	29	Head	Clerk	Connecticut
64	Eleanor Duncan	28	Wife	—	Massachusetts
65	John Duncan	7	Son	—	Massachusetts
66	Nancy Duncan	4	Daughter	—	Massachusetts
67	Leo Jacques	31	Head	Sweeper	Massachusetts
68	Helen Jacques	31	Wife	—	Massachusetts
69	Rosemary Jacques	10	Daughter	—	Massachusetts
70	Elizabeth Jacques	8	Daughter	—	Massachusetts
71	Leo Jr. Jacques	7	Son	—	Massachusetts
72	Harry Jacques	4	Son	—	Massachusetts
73	Thomas Jacques	1	Son	—	Massachusetts
74	Edward Damour	65	Head	Machinist	Canada Fr
75	Eugenia Damour	60	Wife	—	Canada Fr
76	Raoul Damour	22	Son	Clerk	Massachusetts
77	Rita Damour	32	Daughter	Weaver	Massachusetts
78	Olive Damour	20	Daughter	Stenographer	Massachusetts
79	Pearl Damour	22	Daughter	Bulb Tester	Massachusetts

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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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