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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.~1916), then head of a 7-person household.

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

1940 Census Record Details

Census Year1940
LocationPhiladelphia-County, Pennsylvania
SurnameMullen
Given NameWilliam
Relationship to HeadSon
SexM
Color / RaceWhite
Age24
Marital StatusSingle
BirthplacePenna
1935 Residence (City)Philadelphia
1935 Residence (County)Philadelphia
Additional Details
OccupationTyping
IndustryAtl. Refinery Co
Class of WorkerPW
Hours Worked40
Income (1939)800
Highest GradeHs 4
1935 ResidenceSame place
Birth StatePennsylvania
Birth CountryUnited States
Birthplace (normalized)penna
OccupationTyping
Township / WardPhiladelphia
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.

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

Name Relation to head Relative to William Age Birth yr
Robert Mullen Son — 18 ~1922
Joseph Mullen Son — 17 ~1923
Lawrence Mullen Son — 15 ~1925
James Mullen Head — 58 ~1882
Jean Mullen Spouse — 44 ~1896
John Mullen Son — 20 ~1920
William Mullen Son — 24 ~1916

Census Appearances

1930
Philadelphia, Pennsylvania
Son, age 13
Philadelphia, Pennsylvania · implied b. ~1917 — 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 13
Marital Status Single
Birthplace Penna
Father's Birthplace Penna
Mother's Birthplace Ireland
Can Read/Write Yes
Birth State Pennsylvania
Birth Country United States
Birthplace (normalized) penna
1940
Philadelphia-County, Pennsylvania
Son, age 24
Philadelphia-County, Pennsylvania · implied b. ~1916 — 7 household members
Surname Mullen
Given Name William
Relationship to Head Son
Sex M
Color / Race White
Age 24
Marital Status Single
Birthplace Penna
1935 Residence (City) Philadelphia
1935 Residence (County) Philadelphia
Occupation Typing
Industry Atl. Refinery Co
Class of Worker PW
Hours Worked 40
Income (1939) 800
Highest Grade Hs 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.
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 24 · b. ~1916 · Pennsylvania
★ You are viewing this record
Sibling
Robert Mullen
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Mullen
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lawrence Mullen
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Mullen
Sibling · 1940 · age 17
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

40 people indexed on this census page (nara:1940:m-t0627-03729-00632)

Line Name Age Relation Occupation Birthplace
1 Joseph Sweeney 68 Father-in-law Cooper Penna
2 Anne Sykes 43 Head — Penna
3 Charles Sykes 20 Son Helper Penna
4 Amelia Britton 14 Daughter — Penna
5 James Hicks 46 Head Car Helper Massachusetts
6 Anna Hicks 50 Wife — Penna
7 Anna Hicks 14 Daughter — Penna
8 Joseph Hicks 16 Son — Penna
9 Francis Hicks 14 Son — Penna
10 John Hicks 12 Son — Penna
11 Mary Hicks 10 Daughter — Penna
12 Edward Hicks 8 Son — Penna
13 John S. Denlevey 52 Boarder Helper Penna
14 Joseph Perri 41 Head Insurance Italy
15 Mary Perri 36 Wife — Italy
16 Teresia Perri 16 Daughter — Penna
17 Angelo Perri 14 Daughter — Penna
18 Mary Perri 12 Daughter — Penna
19 Rosario Contarino 36 Head Tailor Italy
20 Margaret Contarino 26 Wife Tailor Italy
21 Head Charles None M Butchery —
22 Dorothy Sweeney 30 Wife — Penna
23 Dorothy Sweeney 5 Daughter — Penna
24 Elizabeth Inglesby 58 Mother-in-law — Penna
25 Philip Desconia 27 Head Painter Penna
26 Helen Desconia 23 Wife Tailor Penna
27 Eddie Cooper 41 Head Laborer So. Carolina
28 Sanie Cooper 43 Wife — So. Carolina
29 Virigina Cooper 23 Daughter Waitress Georgia
30 Mabel Cooper 15 Daughter — So. Carolina
31 James Mullen 58 Head Baker Ireland
32 Jean Mullen 44 Wife — Ireland
33 William Mullen THIS PERSON 24 Son Typing Penna
34 John Mullen 20 Son — Penna
35 Robert Mullen 18 Son — Penna
36 Joseph Mullen 17 Son — Penna
37 Lawrence Mullen 15 Son — Penna
38 Robert Hymon 37 Head Laborer So. Carolina
39 Mary Hymon 30 Wife — So. Carolina
40 Mary B. Hymon 12 Daughter — So. Carolina

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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