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Mary Mackey — 1940 US Census Record

Linked across censuses

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

Our Model Tree links this Mary Mackey across the 1920, 1930 and 1940 US Censuses in Nassau-County, New York (XGBoost, ~Confirmed) — first a head (b.~1873), then head of a 3-person household.

Age 67 b. ~1873 Female Head Born: Scotland Widowed

1940 Census Record Details

Census Year1940
LocationNassau-County, New York
SurnameMackey
Given NameMary
Relationship to HeadHead
SexF
Color / RaceWhite
Age67
Marital StatusWidowed
BirthplaceScotland
1935 Residence (City)Garden City
1935 Residence (County)Nassau
Naturalization StatusNaturalized
Additional Details
Income (1939)0
Highest GradeH-4
1935 ResidenceSame place
Birth CountryScotland
Birthplace (normalized)scotland
Township / WardGarden City
Est. Birth Year~1873

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 Mary Age Birth yr
Mary Mackey Spouse — 67 ~1873
Mary Mackey Head — 67 ~1873
Ralph Mackey Son — 37 ~1903

Census Appearances

1920
Kings, New …
Head, age 52
Kings, New York · implied b. ~1868 — 3 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname MacKay
Given Name Margaret
Relationship to Head Head
Sex F
Color / Race White
Age 52
Marital Status Widowed
Birthplace Scotland
Year of Immigration 1888
Naturalization Status First papers filed
Father's Birthplace Scotland
Mother's Birthplace Scotland
Can Read Yes
Can Write Yes
Speaks English Yes
Mother Tongue Scotch
Home Owned/Rented R
Birth Country Scotland
Birthplace (normalized) scotland
1930
Queens, New …
Other, age 59
Queens, New York · implied b. ~1871 — 2 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Mackay
Given Name Margaret
Relationship to Head Mother
Sex F
Color / Race White
Age 59
Marital Status Widowed
Birthplace Scotland
Naturalization Status Naturalized
Year of Immigration 1887
Age at First Marriage 23
Father's Birthplace Scotland
Mother's Birthplace Scotland
Occupation none
Can Read/Write Yes
Mother Tongue Scotch
Birth Country Scotland
Birthplace (normalized) scotland
1940
Nassau-County, New …
Head, age 67
Nassau-County, New York · implied b. ~1873 — 3 household members
Surname Mackey
Given Name Mary
Relationship to Head Head
Sex F
Color / Race White
Age 67
Marital Status Widowed
Birthplace Scotland
1935 Residence (City) Garden City
1935 Residence (County) Nassau
Naturalization Status Naturalized
Income (1939) 0
Highest Grade H-4
1935 Residence Same place
Birth Country Scotland
Birthplace (normalized) scotland

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 Mary Mackey across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mackey
Head · 1940 · age 67 · b. ~1873 · New York
★ You are viewing this record
Confirmed / household (~0.90+) Probable / derived (~0.65–0.89) Candidate (<0.65, unverified)

Original Census Page

1940 US Federal Census — Nassau-County, New York Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-02684-00976)

Line Name Age Relation Occupation Birthplace
41 Milton C Crass 39 Head Investment Banker New York
42 Agnes B Crass 37 Wife — New York
43 Charles Crass 7 Son — New York
44 Barbara Crass 3 Daughter — New York
45 Josephine Crass 78 Mother — New York
46 Adela Canton 28 Servant Maid Massachusetts
47 George T Whitlock 35 Head Mechanical Engineer New York
48 Mary B Whitlock 37 Wife — New York
49 Alice E Whitlock 8 Daughter — New York
50 George T Whitlock 5 Son — New York
51 C. Patrick Doran 35 Head Salesman Minnesota
52 Valerie Doran 34 Wife — Minnesota
53 Valerie Doran 5 Daughter — Missouri
54 Patricia Doran 3 Daughter — New York
55 Catherine Doran 1 Daughter — New York
56 William Burt 18 Servant Servant North Carolina
57 Mary Mackey THIS PERSON 67 Head — Scotland
58 Mary Mackey 67 Wife — Pennsylvania
59 Ralph B Mackey 37 Son — New York
60 J. Fred Klipp 38 Head Pharmacist New York
61 Adelaide Klipp 35 Wife — New York
62 Joseph Klipp 14 Son — New York
63 Justine Klipp 10 Daughter — New York
64 Clara Danberry 62 Head — New York
65 William A Lawlord 42 Head Real Estate Broker New York
66 Viola Lawlord 40 Wife — New York
67 Dorothy Lawlord 19 Daughter Telephone Operator New York
68 James Mccaffrey 15 Son — New York
69 Joan Mccaffrey 14 Daughter — New York
70 Joan Lawlord 12 Daughter — New York
71 John Mccaffrey 11 Step-son — New York
72 Mary Ellen Lawlord 1 Daughter — New York
73 Charles Bradley 46 Head Investment & Real Estate Broker New York
74 Mary Bradley 42 Wife — New York
75 Catherine Bradley 11 Daughter — New York
76 Frances Bradley 8 Daughter — New York
77 Mary Bradley 6 Daughter — New York
78 William Barnes 48 Head Builder New York
79 Mary Barnes 45 Wife — New York
80 William Jr Barnes 21 Son Brakeman Puerto Rico

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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