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John Mulligan — 1940 US Census Record

Model Tree available

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

Our Model Tree links this John Mulligan across the 1920, 1930 and 1940 US Censuses in Rensselaer-County, New York (XGBoost, ~Confirmed), with identified parents John & Thomas — first a son (b.~1919), then head of a 3-person household.

Age 21 b. ~1919 Male Son Born: New York Single

1940 Census Record Details

Census Year1940
LocationRensselaer-County, New York
SurnameMulligan
Given NameJohn J
Relationship to HeadSon
SexM
Color / RaceWhite
Age21
Marital StatusSingle
BirthplaceNew York
1935 Residence (City)Troy
1935 Residence (County)Rensselaer
Additional Details
OccupationLaborer
IndustryWoolen Mill
Class of WorkerPW
Hours Worked40
Income (1939)680
Highest GradeH-4
1935 ResidenceNew York
Birth StateNew York
Birth CountryUnited States
Birthplace (normalized)new york
OccupationLaborer
Township / WardTroy
Est. Birth Year~1919

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
William Mulligan Son — 15 ~1925
John Mulligan Son — 21 ~1919
Mary Mulligan Head — 48 ~1892

Census Appearances

1920
Albany, New …
Son, age 1
Albany, New York · implied b. ~1919 — 5 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Mulligan
Given Name John J
Relationship to Head Son
Sex M
Color / Race White
Age 1
Marital Status Single
Birthplace New York
Father's Birthplace New York
Mother's Birthplace New York
Birth State New York
Birth Country United States
Birthplace (normalized) new york
1930
Albany, New …
Son, age 11
Albany, New York · implied b. ~1919 — 9 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Mulligan
Given Name John J.
Relationship to Head Son
Sex M
Color / Race White
Age 11
Marital Status Single
Birthplace New York
Father's Birthplace New York
Mother's Birthplace New York
Can Read/Write Yes
Birth State New York
Birth Country United States
Birthplace (normalized) new york
1940
Rensselaer-County, New …
Son, age 21
Rensselaer-County, New York · implied b. ~1919 — 3 household members
Surname Mulligan
Given Name John J
Relationship to Head Son
Sex M
Color / Race White
Age 21
Marital Status Single
Birthplace New York
1935 Residence (City) Troy
1935 Residence (County) Rensselaer
Occupation Laborer
Industry Woolen Mill
Class of Worker PW
Hours Worked 40
Income (1939) 680
Highest Grade H-4
1935 Residence New York
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.
Model Tree available
Our Model Tree links John Mulligan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Mulligan (~0.92 confidence) and father Thomas Mulligan (~0.92 confidence) and mother Alice Mulligan (~0.92 confidence) and mother Mary Mulligan (~0.92 confidence) and mother Mary Mulligan (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1 Parents confidence ≈ 0.92
Father
John Mulligan
b. ~1887
Source father
● Household · direct · ~0.92
Father
Thomas Mulligan
b. ~1899
Source father
● Household · direct · ~0.92
Mother
Alice Mulligan
b. ~1897
Source mother
● Household · direct · ~0.92
Mother
Mary Mulligan
b. ~1892
Source mother
● Household · direct · ~0.92
Mother
Mary Mulligan
b. ~1897
Source mother
● Household · direct · ~0.92
This person
Anchor record
John Mulligan
Son · 1940 · age 21 · b. ~1919 · New York
★ You are viewing this record
Sibling
William Mulligan
Sibling · 1940 · age 15
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 — Rensselaer-County, New York Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-02758-00951)

Line Name Age Relation Occupation Birthplace
41 Luke Vario 37 Head Inspector New York
42 Alice A Vario 33 Wife — New York
43 Elizabeth A Vario 9 Daughter — New York
44 Margaret M Vario 5 Daughter — New York
45 Walter L Kennedy 55 Head Distributor New York
46 Mary A Kennedy 60 Sister — New York
47 Freda W Richmond 67 Head — New York
48 Emma A Richmond 63 Head — New York
49 Alice A Buckley 32 Daughter — New York
50 Margaret J Oatigui 26 Daughter Stitcher New York
51 Daniel J Oatigui 34 Son Brakeman New York
52 Lorretta M Oatigui 15 Granddaughter — New York
53 Joseph L Oatigui 26 Son-in-law Sexton Canada Fr.
54 Henry R Fisher 51 Head Crane Op. England
55 Mildred Fisher 51 Wife — England
56 William H Fisher 19 Son New Worker New York
57 Elvin Ann Fisher 80 Mother — England
58 Thomas B Slavin 44 Head Owner New York
59 Helen J Slavin 38 Wife — New York
60 Louis A Shaver 41 Head Fireman New York
61 Lucille Shaver 40 Wife — New York
62 Edwin A Shaver 21 Son Laborer New York
63 June C Shaver 15 Daughter — New York
64 Simond Shaver 69 Father — New York
65 Joseph G Cahill 46 Head Contractor New York
66 Helen P Cahill 42 Wife — New York
67 Doris E Cahill 17 Daughter — New York
68 Helena M Cahill 15 Daughter — New York
69 Joseph G Jr Cahill 14 Son — New York
70 Mary A Mulligan 48 Head Folder New York
71 John J Mulligan THIS PERSON 21 Son Laborer New York
72 William G Mulligan 15 Son — New York
73 Philean M Micha 62 Head Maid New York
74 Francis J Micha 31 Son — New York
75 Sophie Hettig 71 Head — New York
76 Katherine Hoffman 64 Sister — New York
77 Joseph E Hettig 37 Head Accountant New York
78 Catherine A Hettig 39 Wife — New York
79 Catherine A Hettig 2 Daughter — New York
80 Elmer D Coonrad 49 Head Mechanic New York

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Pedigree Summary

John + 1 sibling
Gen 1 · 5 parents ~0.92
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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