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Joseph Sullivan — 1940 US Census Record

Model Tree available

1940 United States Federal Census · Suffolk-County, Massachusetts

Our Model Tree links this Joseph Sullivan across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Joseph & Georgiana — first a son (b.~1916), then head of a 9-person household.

Age 24 b. ~1916 Male Son Born: Mass. Single

1940 Census Record Details

Census Year1940
LocationSuffolk-County, Massachusetts
SurnameSullivan
Given NameJoseph P. Jr.
Relationship to HeadSon
SexM
Color / RaceWhite
Age24
Marital StatusSingle
BirthplaceMass.
1935 Residence (City)Boston city
1935 Residence (County)Suffolk
Additional Details
OccupationHelper
IndustryMachine Shop
Class of WorkerPW
Hours Worked24
Income (1939)320
Highest GradeH-4
1935 ResidenceSame place
Birth StateMassachusetts
Birth CountryUnited States
Birthplace (normalized)mass
OccupationHelper
Township / WardBoston City
Est. Birth Year~1916

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.

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

Name Relation to head Relative to Joseph Age Birth yr
Dorothy Sullivan Daughter — 12 ~1928
Gertrude Sullivan Daughter — 14 ~1926
Elizabeth Sullivan Daughter — 16 ~1924
Ellen Sullivan Daughter — 16 ~1924
Joseph Sullivan Head — 55 ~1885
Daniel Sullivan Son — 22 ~1918
Joseph Sullivan Son — 24 ~1916
Robert Sullivan Son — 17 ~1923
Georgiana Sullivan Spouse — 55 ~1885

Census Appearances

1920
Suffolk, Massachusetts
Son, age 3
Suffolk, Massachusetts · implied b. ~1917 — 6 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Sullivan
Given Name Joseph
Relationship to Head Son
Sex M
Color / Race White
Age 3
Marital Status Single
Birthplace Mass
Father's Birthplace Mass
Mother's Birthplace Mass
Occupation none
Birth State Massachusetts
Birth Country United States
Birthplace (normalized) mass
1930
Suffolk, Massachusetts
Son, age 14
Suffolk, Massachusetts · implied b. ~1916 — 3 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Sullivan
Given Name Joseph J
Relationship to Head Son
Sex M
Color / Race White
Age 14
Marital Status Single
Birthplace Mass
Father's Birthplace Mass
Mother's Birthplace Mass
Can Read/Write Yes
Birth State Massachusetts
Birth Country United States
Birthplace (normalized) mass
1940
Suffolk-County, Massachusetts
Son, age 24
Suffolk-County, Massachusetts · implied b. ~1916 — 9 household members
Surname Sullivan
Given Name Joseph P. Jr.
Relationship to Head Son
Sex M
Color / Race White
Age 24
Marital Status Single
Birthplace Mass.
1935 Residence (City) Boston city
1935 Residence (County) Suffolk
Occupation Helper
Industry Machine Shop
Class of Worker PW
Hours Worked 24
Income (1939) 320
Highest Grade H-4
1935 Residence Same place
Birth State Massachusetts
Birth Country United States
Birthplace (normalized) mass

Model Tree

An inferred pedigree reconstructed from census links — up to 4 generations within the 1900–1950 window. Closer generations are built from household co-residence; deeper ones are bridged by following a relative to their own childhood census. Confidence compounds and weakens with each generation.
Model Tree available
Our Model Tree links Joseph Sullivan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Joseph Sullivan (~0.92 confidence) and mother Georgiana Sullivan (~0.92 confidence) and father Timothy Sullivan (~0.92 confidence) and mother Mildred Sullivan (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1 Parents confidence ≈ 0.92
Father
Joseph Sullivan
b. ~1885
Source father
● Household · direct · ~0.92
Mother
Georgiana Sullivan
b. ~1885
Source mother
● Household · direct · ~0.92
Father
Timothy Sullivan
b. ~1896
Source father
● Household · direct · ~0.92
Mother
Mildred Sullivan
b. ~1897
Source mother
● Household · direct · ~0.92
This person
Anchor record
Joseph Sullivan
Son · 1940 · age 24 · b. ~1916 · Massachusetts
★ You are viewing this record
Sibling
Robert Sullivan
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Sullivan
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gertrude Sullivan
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daniel Sullivan
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Sullivan
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ellen Sullivan
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
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-t0627-01678-00371)

Line Name Age Relation Occupation Birthplace
1 Catherine Phillips 39 Wife — Mass.
2 Walter J. Phillips 16 Son — Mass.
3 Thomas J. Halpin 72 Head — New York
4 Julia E. Halpin 57 Wife — Mass.
5 Vincent Halpin 25 Son Timekeeper Mass.
6 Joseph P. Sullivan 55 Head Laborer Eire
7 Georgiana Sullivan 55 Wife — Mass.
8 Joseph P. Jr. Sullivan THIS PERSON 24 Son Helper Mass.
9 Daniel Sullivan 22 Son Errand Boy Mass.
10 Robert H. Sullivan 17 Son — Mass.
11 Elizabeth A. Sullivan 16 Daughter — Mass.
12 Ellen M. Sullivan 16 Daughter — Mass.
13 Gertrude T. Sullivan 14 Daughter — Mass.
14 Dorothy M. Sullivan 12 Daughter — Mass.
16 George W. Delano 63 Head — Maine
17 Elizabeth Delano 67 Wife — Eire
18 William Delano 45 Son Plumber Helper Mass.
19 Mary T. Magee 47 Head — Mass.
20 John J. Magee 25 Son Operator Mass.
21 Charles Magee 20 Son Messenger Mass.
22 Eleanor Magee 18 Daughter Stenographer Mass.
23 Walter Magee 15 Son — Mass.
24 Mary T. Magee 11 Daughter — Mass.
25 Robert J. Magee 7 Son — Mass.
26 Harold J. Magee 5 Son — Mass.
27 Martin C. King 33 Head Bindery Mass.
28 Charles King 24 Brother Time Study Mass.
29 Ruth King 21 Sister Typist Mass.
30 Vincent King 20 Brother Paper Clerk Mass.
31 John King 17 Brother Shoe Worker Mass.
32 Margaret King 14 Sister — Mass.
33 Joseph King 12 Brother — Mass.
35 George W. Mcneil 72 Head — Rhode Island
36 Katherine Mcneil 63 Wife — Canada English
37 Thomas F. Harvey 59 Head Window Dresser Mass.
38 Evelyn R. Harvey 27 Wife — —
39 Barbara A. Harvey 0 Daughter — Mass.
40 Patrick Gregorio 35 Head Draftsman Italy

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Pedigree Summary

Joseph + 6 siblings
Gen 1 · 4 parents ~0.92
Max depth 4 (1900–1950 window)

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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