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William Mahoney — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Orange-County, New York

Our Model Tree links this William Mahoney across the 1930 and 1940 US Censuses in Orange-County, New York (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 9-person household.

Age 12 b. ~1928 Male Son Born: New York Single

1940 Census Record Details

Census Year1940
LocationOrange-County, New York
SurnameMahoney
Given NameWilliam F.
Relationship to HeadSon
SexM
Color / RaceWhite
Age12
Marital StatusSingle
BirthplaceNew York
1935 Residence (City)Port Jervis City
1935 Residence (County)Orange
Additional Details
Highest Grade7
1935 ResidenceSame place
Birth StateNew York
Birth CountryUnited States
Birthplace (normalized)new york
Township / WardPort Jervis City
Est. Birth Year~1928

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 William Age Birth yr
Daniel Mahoney Son — 13 ~1927
Patricia Mahoney Daughter — 9 ~1931
Frederick Mahoney Son — 11 ~1929
Claire Mahoney Daughter — 5 ~1935
Marie Mahoney Spouse — 40 ~1900
Joseph Mahoney Head — 64 ~1876
Francis Mahoney Son — 7 ~1933
Anthony Mahoney Son — 10 ~1930
William Mahoney Son — 12 ~1928

Census Appearances

1930
Orange, New …
Son, age 2
Orange, New York · implied b. ~1928 — 7 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Mahoney
Given Name William F
Relationship to Head Son
Sex M
Color / Race White
Age 2
Marital Status Single
Birthplace New York
Father's Birthplace New York
Mother's Birthplace Pennsylvania
Birth State New York
Birth Country United States
Birthplace (normalized) new york
1940
Orange-County, New …
Son, age 12
Orange-County, New York · implied b. ~1928 — 9 household members
Surname Mahoney
Given Name William F.
Relationship to Head Son
Sex M
Color / Race White
Age 12
Marital Status Single
Birthplace New York
1935 Residence (City) Port Jervis City
1935 Residence (County) Orange
Highest Grade 7
1935 Residence Same place
Birth State New York
Birth Country United States
Birthplace (normalized) new york

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 Mahoney across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Mahoney
Son · 1940 · age 12 · b. ~1928 · New York
★ You are viewing this record
Sibling
Patricia Mahoney
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anthony Mahoney
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frederick Mahoney
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Claire Mahoney
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Mahoney
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daniel Mahoney
Sibling · 1940 · age 13
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 — Orange-County, New York Open full size

Page Contents

37 people indexed on this census page (nara:1940:m-t0627-02711-00726)

Line Name Age Relation Occupation Birthplace
41 Judith L. Linson 6 Daughter — New York
42 Joseph P. Mahoney 64 Head Clerk New York
43 Marie C. Mahoney 40 Wife — Pennsylvania
44 Daniel J. Mahoney 13 Son — New York
45 William F. Mahoney THIS PERSON 12 Son — New York
46 Frederick Mahoney 11 Son — New York
47 Anthony Mahoney 10 Son — New York
48 Patricia Mahoney 9 Daughter — New York
49 Francis Mahoney 7 Son — New York
50 Claire Mahoney 5 Daughter — New York
51 Samuel Hiller 57 Head President Poland
52 Annie Hiller 50 Wife — Poland
53 Benjamin Hiller 30 Son Superintendent Poland
54 Edward J. Walsh 63 Head — Pennsylvania
55 Ida F. Walsh 60 Wife — New York
56 Richard E. Mccormack 42 Head Claim Agent New Jersey
57 Dolores M. Mccormack 37 Wife — New York
58 Mary Mccormack 15 Daughter — New York
59 Elizabeth Mccormack 11 Daughter — New York
60 Robert Gay 62 Head Rector England
61 Rosemond Howard Gay 63 Wife — Canada English
62 James Gleason 58 Head Machinist Helper New York
63 William Gleason 56 Brother Painter New York
64 Elizabeth Gleason 47 Sister Machine Operator New York
68 Lester Schauer 31 Head Trucker New York
69 Genevieve Schauer 32 Wife Salesclerk New York
70 John Thornton 7 Son — New York
71 Frank E. Niehoff 32 Head Chauffeur New York
72 Josephine Niehoff 34 Wife — New York
73 Frank Niehoff 5 Son — New York
74 John Niehoff 3 Son — New York
75 Ferdinand Hindemith 39 Lodger Machine Operator New York
76 Bert H. Erdman 61 Head Chauffeur Maryland
77 Eva Erdman 48 Wife Proprietor New York
78 Harriet Erdman 20 Daughter New Worker New York
79 Esther Taylor 43 Head Leader New York
80 Joseph F. Hill 46 Head Laborer New York

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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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