William Fitzpatrick — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Suffolk-County, Massachusetts

Our Model Tree links this William Fitzpatrick across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1900), then head of a 8-person household.

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

1940 Census Record Details

Census Year	1940
Location	Suffolk-County, Massachusetts
Surname	Fitzpatrick
Given Name	William
Relationship to Head	Head
Sex	M
Color / Race	White
Age	40
Marital Status	Married
Birthplace	Massachusetts
1935 Residence (City)	Boston city
1935 Residence (County)	Suffolk
Additional Details
Occupation	Laborer
Industry	Building Improving Project
Class of Worker	PW
Hours Worked	26
Income (1939)	725
Highest Grade	No 8
1935 Residence	Same Place
Birth State	Massachusetts
Birth Country	United States
Birthplace (normalized)	massachusetts
Occupation	Laborer
Township / Ward	Boston City
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.

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

Name	Relation to head	Relative to William	Age	Birth yr
William Fitzpatrick	Son	—	5	~1935
Helen Fitzpatrick	Daughter	—	13	~1927
James Fitzpatrick	Son	—	6	~1934
Claire Fitzpatrick	Daughter	—	14	~1926
Eliane Fitzpatrick	Daughter	—	9	~1931
Paul Fitzpatrick	Son	—	2	~1938
Helen Fitzpatrick	Spouse	—	36	~1904
William Fitzpatrick	Head	—	40	~1900

Census Appearances

1930

Suffolk, Massachusetts

Head, age 29

Suffolk, Massachusetts · implied b. ~1901 — 4 household members

● Primary link · ~Confirmed · 2 sources

XGBoost Household

Surname	Fitzpatrick
Given Name	William
Relationship to Head	Head
Sex	M
Color / Race	White
Age	29
Marital Status	Married
Birthplace	Massachusetts
Age at First Marriage	24
Father's Birthplace	Canada English
Mother's Birthplace	Canada English
Can Read/Write	Yes
Home Owned/Rented	R
Home Value / Rent	35.00
Veteran	No
Birth State	Massachusetts
Birth Country	United States
Birthplace (normalized)	massachusetts

1940

Suffolk-County, Massachusetts

Head, age 40

Suffolk-County, Massachusetts · implied b. ~1900 — 8 household members

Surname	Fitzpatrick
Given Name	William
Relationship to Head	Head
Sex	M
Color / Race	White
Age	40
Marital Status	Married
Birthplace	Massachusetts
1935 Residence (City)	Boston city
1935 Residence (County)	Suffolk
Occupation	Laborer
Industry	Building Improving Project
Class of Worker	PW
Hours Worked	26
Income (1939)	725
Highest Grade	No 8
1935 Residence	Same Place
Birth State	Massachusetts
Birth Country	United States
Birthplace (normalized)	massachusetts

Model Tree

Linked across censuses

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

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This person

Anchor record

William Fitzpatrick

Head · 1940 · age 40 · b. ~1900 · 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 — Suffolk-County, Massachusetts Open full size

Page Contents

38 people indexed on this census page (nara:1940:m-t0627-01666-00630)

Line	Name	Age	Relation	Occupation	Birthplace
1	Walter Breese	9	Son	—	Massachusetts
2	Elizabeth A. Salter	80	Head	—	Massachusetts
4	Lorenzo Tarbucco	47	Head	Steam Fitter	Massachusetts
5	Margaret Tarbucco	43	Wife	—	Massachusetts
6	Louise Tarbucco	14	Daughter	—	Mass
7	Lorence Tarbucco	13	Son	—	Mass
8	Margaret Tarbucco	11	Daughter	—	Mass
9	Robert C. Tarbucco	7	Son	—	Mass
10	James Tarbucco	6	Son	—	Mass
11	Harold Tarbucco	4	Son	—	Mass
12	William Fitzpatrick THIS PERSON	40	Head	Laborer	Massachusetts
13	Helen Fitzpatrick	36	Wife	—	Mass
14	Claire Fitzpatrick	14	Daughter	—	Mass
15	Helen Fitzpatrick	13	Daughter	—	Mass
16	Eliane Fitzpatrick	9	Daughter	—	Mass
17	James Fitzpatrick	6	Son	—	Mass
18	William Fitzpatrick	5	Son	—	Mass
19	Paul Fitzpatrick	2	Son	—	Massachusetts
20	Isaac Barker	50	Head	Grocery Store	Russia
21	Sarah Barker	51	Wife	—	Russia
22	Frank Barker	15	Son	Bookkeeper	Mass
23	Ralph Barker	10	Son	—	Mass
24	Andrew Zabchuk	44	Head	Chef	Austria
25	Mary Zabchuk	44	Wife	—	Austria
26	Peter Zabchuk	18	Son	New Worker	Massachusetts
27	John Zabchuk	14	Son	—	Massachusetts
28	Fred Zabchuk	11	Son	—	Massachusetts
30	Charles H. Wilton	73	Head	Kitchen Worker	Canada-English
31	Mary A. Wilton	75	Wife	—	Massachusetts
32	Maurice Spellman	32	Head	Trucking	Massachusetts
33	Mildred Spellman	30	Wife	—	Massachusetts
34	Evelyn Spellman	7	Daughter	—	Mass
35	Robert Spellman	1	Son	—	Mass
36	Grace Mackey	34	Head	—	Mass
37	Grace Mackey	8	Daughter	—	Mass
38	John Mackey	6	Son	—	Massachusetts
39	Esther Groon	63	Head	Packer	Austria
40	Florence Groon	38	Daughter	—	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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