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John Sullivan — 1940 US Census Record

Model Tree available

1940 United States Federal Census · Philadelphia-County, Pennsylvania

Our Model Tree links this John Sullivan across the 1920, 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents John & Eugene — first a son (b.~1903), then head of a 3-person household.

Age 37 b. ~1903 Male Son Born: Penna. Single

1940 Census Record Details

Census Year1940
LocationPhiladelphia-County, Pennsylvania
SurnameSullivan
Given NameJohn J.
Relationship to Headson
SexM
Color / RaceWhite
Age37
Marital StatusSingle
BirthplacePenna.
1935 Residence (City)Phila.
1935 Residence (County)Phila.
Additional Details
OccupationSalesman
IndustryAuto Mfg.
Class of WorkerPW
Hours Worked35
Income (1939)1800
Highest GradeH-4
1935 ResidenceSame place
Birth StatePennsylvania
Birth CountryUnited States
Birthplace (normalized)penna
OccupationSalesman
Township / WardPhila
Est. Birth Year~1903

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
Eugene Sullivan Head — 36 ~1904
Paul Sullivan Son — 37 ~1903
John Sullivan Son — 37 ~1903

Census Appearances

1920
Philadelphia, Pennsylvania
Son, age 16
Philadelphia, Pennsylvania · implied b. ~1904 — 7 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Sullivan
Given Name John
Relationship to Head Son
Sex M
Color / Race White
Age 16
Marital Status Single
Birthplace Penna
Year of Immigration 1893
Naturalization Status Naturalized
Father's Birthplace Ireland
Mother's Birthplace Ireland
Can Read Yes
Can Write Yes
Speaks English Yes
Mother Tongue English
Birth State Pennsylvania
Birth Country United States
Year of Naturalization 1897
Birthplace (normalized) penna
1930
Philadelphia, Pennsylvania
Son, age 26
Philadelphia, Pennsylvania · implied b. ~1904 — 7 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Sullivan
Given Name John Jr.
Relationship to Head Son
Sex M
Color / Race White
Age 26
Marital Status Single
Birthplace Penna.
Father's Birthplace Ireland
Mother's Birthplace Ireland
Occupation Apprentice
Industry Plumbing
Class of Worker W
Can Read/Write Yes
Veteran No
Birth State Pennsylvania
Birth Country United States
Birthplace (normalized) penna
1940
Philadelphia-County, Pennsylvania
Son, age 37
Philadelphia-County, Pennsylvania · implied b. ~1903 — 3 household members
Surname Sullivan
Given Name John J.
Relationship to Head son
Sex M
Color / Race White
Age 37
Marital Status Single
Birthplace Penna.
1935 Residence (City) Phila.
1935 Residence (County) Phila.
Occupation Salesman
Industry Auto Mfg.
Class of Worker PW
Hours Worked 35
Income (1939) 1800
Highest Grade H-4
1935 Residence Same place
Birth State Pennsylvania
Birth Country United States
Birthplace (normalized) penna

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 John Sullivan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Sullivan (~0.92 confidence) and father Eugene Sullivan (~0.50 confidence) and mother Annie Sullivan (~0.92 confidence) and mother Mary Sullivan (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1 Parents confidence ≈ 0.82
Father
John Sullivan
b. ~1880
Source father
● Household · direct · ~0.92
Father
Eugene Sullivan
b. ~1904
Source father
● Household · direct · ~0.5
Mother
Annie Sullivan
b. ~1879
Source mother
● Household · direct · ~0.92
Mother
Mary Sullivan
b. ~1882
Source mother
● Household · direct · ~0.92
This person
Anchor record
John Sullivan
Son · 1940 · age 37 · b. ~1903 · Pennsylvania
★ You are viewing this record
Sibling
Paul Sullivan
Sibling · 1940 · age 37
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 — Philadelphia-County, Pennsylvania Open full size

Page Contents

39 people indexed on this census page (nara:1940:m-t0627-03724-01241)

Line Name Age Relation Occupation Birthplace
41 Otis 27 son Car Washer N. Carolina
42 Martha 21 daughter Seamstress N. Carolina
43 Evelyn 17 daughter — Penna.
44 Lonnie Watson 25 lodger Maid N. Carolina
45 Lillie Jones 40 lodger Maid Virginia
47 M. Sherman Kinney 63 head — Penna.
48 Elizabeth C. Kinney 56 wife — Germany
49 Marie Bernhart 38 daughter Buyer Penna.
50 Gloria Bernhart 12 grand-dau — Penna.
51 Elizabeth Bernhart 9 grand-dau — Penna.
52 James Robinson 38 son-in-law Pipe Fitter Penna.
53 Lena D. Robinson 35 daughter Saleswoman Ohio
54 James Robinson 17 grand-son — Penna.
55 Elaine Robinson 13 grand-dau — Penna.
56 Joseph N. Waters 51 head Letter Carrier Penna.
57 Constance L. Waters 32 wife — Penna.
58 Sarah B. Roberts 66 mother — New Jersey
59 Robert Hegemann 61 head Fresco Painter Germany
60 Emilie Hegemann 54 wife — Germany
61 Elsie Hegemann 36 daughter Stenographer Penna.
62 William Hegemann 34 son Clerk Penna.
63 Eugene Sullivan 36 head — Eire
64 John J. Sullivan THIS PERSON 37 son Salesman Penna.
65 Paul R. Sullivan 37 son Salesman Penna.
66 Matthew Robinson 46 head Postal Clerk Penna.
67 Marie Robinson 38 wife — Penna.
68 Matthew Jr. Robinson 3 son — Penna.
69 Eleanor Green 24 lodger Camp Counselor Maryland
70 George B. Wood 53 lodger Chef Virginia
71 Mercer Redcross 36 head Chef Virginia
72 Geraldine Redcross 32 wife — Virginia
73 Mercer Jr. Redcross 13 son — Penna.
74 Shirley Redcross 11 daughter — Penna.
75 Oscar Uzzle 30 lodger Chef Virginia
76 Nettie Uzzle 24 lodger's wife — Alabama
77 Chauncey Uzzle 0 lodger's son — Penna.
78 William Gray 25 head Truck Driver Penna.
79 Rose Gray 53 mother — Ireland
80 Charles Gray 18 brother Truck Driver Penna.

Pedigree Summary

John + 1 sibling
Gen 1 · 4 parents ~0.81
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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