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Michael Sullivan — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Middlesex-County, Massachusetts

Our Model Tree links this Michael Sullivan across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1891), then head of a 10-person household.

Age 49 b. ~1891 Male Head Born: Irish Free State Married

1940 Census Record Details

Census Year1940
LocationMiddlesex-County, Massachusetts
SurnameSullivan
Given NameMichael J.
Relationship to HeadHead
SexM
Color / RaceWhite
Age49
Marital StatusMarried
BirthplaceIrish Free State
1935 Residence (City)Melrose city
1935 Residence (County)Middlesex
Naturalization StatusNaturalized
Additional Details
OccupationLaborer
IndustryBuilding construction
Class of WorkerPW
Hours Worked44
Income (1939)1450
Highest GradeH-4
1935 ResidenceSame place
Birthplace (normalized)irish free state
OccupationLaborer
Township / WardMelrose City
Est. Birth Year~1891

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.

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

Name Relation to head Relative to Michael Age Birth yr
Catherine Sullivan Daughter — 23 ~1917
Bernice Sullivan Daughter — 17 ~1923
Ruth Sullivan Daughter — 15 ~1925
Margaret Sullivan Daughter — 13 ~1927
Mary Sullivan Daughter — 8 ~1932
Michael Sullivan Head — 49 ~1891
Joseph Sullivan Son — 7 ~1933
Daniel Sullivan Son — 14 ~1926
John Sullivan Son — 19 ~1921
Annie Sullivan Spouse — 45 ~1895

Census Appearances

1930
Middlesex, Massachusetts
Head, age 39
Middlesex, Massachusetts · implied b. ~1891 — 10 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Sullivan
Given Name Michael J.
Relationship to Head Head
Sex M
Color / Race White
Age 39
Marital Status Married
Birthplace Irish Free State
Naturalization Status Naturalized
Year of Immigration 1913
Age at First Marriage 23
Father's Birthplace Irish Free State
Mother's Birthplace Irish Free State
Occupation Laborer
Industry Highway Dept
Class of Worker W
Can Read/Write Yes
Mother Tongue English
Home Owned/Rented R
Home Value / Rent 16.00
Veteran No
Birthplace (normalized) irish free state
1940
Middlesex-County, Massachusetts
Head, age 49
Middlesex-County, Massachusetts · implied b. ~1891 — 10 household members
Surname Sullivan
Given Name Michael J.
Relationship to Head Head
Sex M
Color / Race White
Age 49
Marital Status Married
Birthplace Irish Free State
1935 Residence (City) Melrose city
1935 Residence (County) Middlesex
Naturalization Status Naturalized
Occupation Laborer
Industry Building construction
Class of Worker PW
Hours Worked 44
Income (1939) 1450
Highest Grade H-4
1935 Residence Same place
Birthplace (normalized) irish free state

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.
Linked across censuses
Our Model Tree links Michael Sullivan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Michael Sullivan
Head · 1940 · age 49 · b. ~1891 · 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 — Middlesex-County, Massachusetts Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-01613-00582)

Line Name Age Relation Occupation Birthplace
1 Elizabeth B. Hewitt 55 Daughter — Mass.
2 Robert M. Hewitt 25 Son — Mass.
3 Sumner G. Toner 39 Head Laborer Mass.
4 Mary E. Toner 39 Wife Assembler Mass.
5 Alice Toner 10 Daughter — Mass.
6 Sumner G. (Jr.) Toner 9 Son — Mass.
7 Gerald A. Fitzpatrick 30 Head — Mass.
8 Katherine S. Fitzpatrick 28 Wife — Mass.
9 Jean M. Fitzpatrick 3 Daughter — Mass.
10 Madelyn C. Fitzpatrick 2 Daughter — Mass.
11 Mary M. Kelleher 34 Head Waitress Mass.
12 John F. Kelleher 13 Son — Mass.
13 Joan M. Kelleher 11 Daughter — Mass.
14 Joan E. Kelleher 9 Daughter — Mass.
15 William E. Jones 35 Head — Arkansas
16 Irene C. Jones 26 Wife Housemaid Mass.
17 Barbara L. Jones 7 Daughter — Mass.
18 William E. Jr. Jones 5 Son — Mass.
19 Nancy L. Jones 4 Daughter — Mass.
20 Ruth M. Jones 2 Daughter — Mass.
21 Thelma E. Mautern | Mantern 37 Head — Mass.
22 Chester A. Mautern | Mantern 15 Son — Mass.
23 Leila V. Mautern | Mantern 13 Daughter — Mass.
24 Elena E. Mautern | Mantern 10 Daughter — Mass.
25 Thomas E. Young 43 Lodger Floor Layer Canada
26 Elizabeth E. Williams 45 Head — England
27 Carl F. Williams 25 Son Laborer Mass.
28 Joseph R. Williams 23 Son Grocery Clerk Mass.
29 Christian Loeffler 40 Head Mason Mass.
30 Irving W. Loeffler 36 Son Laborer Mass.
31 Michael J. Sullivan THIS PERSON 49 Head Laborer Irish Free State
32 Annie M. Sullivan 45 Wife — Irish Free State
33 Catherine F. Sullivan 23 Daughter Housemaid Mass.
34 John L. Sullivan 19 Son Helper Mass.
35 Bernice M. Sullivan 17 Daughter — Mass.
36 Ruth N. Sullivan 15 Daughter — Mass.
37 Daniel F. Sullivan 14 Son — Mass.
38 Margaret F. Sullivan 13 Daughter — Mass.
39 Mary L. Sullivan 8 Daughter — Mass.
40 Joseph E. Sullivan 7 Son — Mass.

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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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