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William Mullen — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Philadelphia-County, Pennsylvania

Our Model Tree links this William Mullen across the 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1918), then head of a 7-person household.

Age 22 b. ~1918 Male Son Born: Penna. Single

1940 Census Record Details

Census Year1940
LocationPhiladelphia-County, Pennsylvania
SurnameMullen
Given NameWilliam
Relationship to HeadSon
SexM
Color / RaceWhite
Age22
Marital StatusSingle
BirthplacePenna.
1935 Residence (City)Phila. City
1935 Residence (County)Phila.
Additional Details
OccupationNew Worker
Class of WorkerGW
Hours Worked156
Income (1939)0
Highest GradeNo 8
1935 ResidenceSame place
Birth StatePennsylvania
Birth CountryUnited States
Birthplace (normalized)penna
OccupationNew Worker
Township / WardPhila City
Est. Birth Year~1918

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.

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

Name Relation to head Relative to William Age Birth yr
William Mullen Son — 22 ~1918
Julia Mullen Daughter — 15 ~1925
Elizabeth Mullen Daughter — 10 ~1930
Mary Mullen Daughter — 18 ~1922
Edward Mullen Son — 20 ~1920
John Mullen Head — 53 ~1887
Richard Mullen Son — 12 ~1928

Census Appearances

1930
Philadelphia, Pennsylvania
Son, age 11
Philadelphia, Pennsylvania · implied b. ~1919 — 8 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Mullin
Given Name William
Relationship to Head Son
Sex M
Color / Race White
Age 11
Marital Status Single
Birthplace Penna
Father's Birthplace Penna
Mother's Birthplace Penna
Can Read/Write Yes
Birth State Pennsylvania
Birth Country United States
Birthplace (normalized) penna
1940
Philadelphia-County, Pennsylvania
Son, age 22
Philadelphia-County, Pennsylvania · implied b. ~1918 — 7 household members
Surname Mullen
Given Name William
Relationship to Head Son
Sex M
Color / Race White
Age 22
Marital Status Single
Birthplace Penna.
1935 Residence (City) Phila. City
1935 Residence (County) Phila.
Occupation New Worker
Class of Worker GW
Hours Worked 156
Income (1939) 0
Highest Grade No 8
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.
Linked across censuses
Our Model Tree links William Mullen across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Mullen
Son · 1940 · age 22 · b. ~1918 · Pennsylvania
★ You are viewing this record
Sibling
Julia Mullen
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Mullen
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Mullen
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Mullen
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Mullen
Sibling · 1940 · age 20
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

38 people indexed on this census page (nara:1940:m-t0627-03734-00210)

Line Name Age Relation Occupation Birthplace
41 Henry W. Barr 6 Nephew — Penna.
42 Mary A. Mccormick 44 Head — Ireland
43 Margaret T. Mccormick 18 Daughter Folder Penna.
44 Catherine M. Mccormick 12 Daughter — Penna.
45 Amy Kellett 21 Nephew Electrician Helper Penna.
46 John Barnes 26 Head Printer Helper Penna.
47 Harriet Barnes 24 Wife — Penna.
48 John Jr. Barnes 2 Son — Penna.
49 Edward Anderson 21 Lodger Trucker Penna.
50 John Sr. Mullen 53 Head — Penna.
51 William Mullen THIS PERSON 22 Son New Worker Penna.
52 Edward Mullen 20 Son New Worker Penna.
53 Mary Mullen 18 Daughter New Worker Penna.
54 Julia Mullen 15 Daughter New Worker Penna.
55 Richard Mullen 12 Son — Penna.
56 Elizabeth Mullen 10 Daughter — Penna.
57 Walter E. Cunningham 26 Head Press Operator Penna.
58 Florence M. Cunningham 25 Wife — Penna.
59 Walter Jr. Cunningham 1 Son — Penna.
60 Peter Madsen 56 Head Fireman Denmark
61 Mary E. Mielow 52 Sister — Penna.
62 William H. Follett 56 Head — Penna.
63 Patrick Clark 44 Head Stevedore Penna.
64 Lilian M. Clark 42 Wife — Penna.
65 Robert Clark 25 Son Truck Driver Helper Penna.
66 Mary H. Clark 20 Daughter Bottler Penna.
67 Joseph P. Clark 18 Son Forestry Penna.
68 Nellie V. Clark 16 Daughter New Worker Penna.
69 Michael G. Clark 14 Son — Penna.
70 John B. Clark 11 Son — Penna.
71 Harry W. Clark 8 Son — Penna.
72 Mary Sauvageau 53 Head — Penna.
73 James Sauvageau 15 Son — Penna.
74 Joseph Sauvageau 14 Son — Penna.
77 Edwin C. Mckeon 39 Head Bar Tender Penna.
78 Emma Mckeon 38 Wife Roller Penna.
79 Edwin Jr. Mckeon 16 Son — Penna.
80 Walter H. Mccloskey 45 Head Oiler Penna.

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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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