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Mary Henry — 1940 US Census Record

Model Tree available

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

Our Model Tree links this Mary Henry across the 1920, 1930 and 1940 US Censuses in Nassau-County, New York (XGBoost, ~Confirmed), with identified parents William & William — first a daughter (b.~1917), then head of a 6-person household.

Age 23 b. ~1917 Female Daughter Born: New York Single

1940 Census Record Details

Census Year1940
LocationNassau-County, New York
SurnameHenry
Given NameMary
Relationship to HeadDaughter
SexF
Color / RaceWhite
Age23
Marital StatusSingle
BirthplaceNew York
1935 Residence (City)Roslyn Heights
1935 Residence (County)Nassau
Additional Details
Industry0
Highest GradeH-2
1935 ResidenceSame House
Birth StateNew York
Birth CountryUnited States
Birthplace (normalized)new york
Township / WardRoslyn Heights
Est. Birth Year~1917

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.

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

Name Relation to head Relative to Mary Age Birth yr
Mary Henry Daughter — 23 ~1917
Dorothy Henry Daughter — 38 ~1902
William Henry Head — 65 ~1875
Phillip Henry Son — 24 ~1916
William Henry Son — 30 ~1910
Catherine Henry Spouse — 64 ~1876

Census Appearances

1920
Nassau, New …
Daughter, age 2
Nassau, New York · implied b. ~1918 — 9 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Henry
Given Name Mary
Relationship to Head daughter
Sex F
Color / Race White
Age 2
Marital Status Single
Birthplace New York
Father's Birthplace New York
Mother's Birthplace New York
Occupation none
Birth State New York
Birth Country United States
Birthplace (normalized) new york
1930
Nassau, New …
Daughter, age 12
Nassau, New York · implied b. ~1918 — 8 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Henry
Given Name Mary
Relationship to Head Daughter
Sex F
Color / Race White
Age 12
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
Nassau-County, New …
Daughter, age 23
Nassau-County, New York · implied b. ~1917 — 6 household members
Surname Henry
Given Name Mary
Relationship to Head Daughter
Sex F
Color / Race White
Age 23
Marital Status Single
Birthplace New York
1935 Residence (City) Roslyn Heights
1935 Residence (County) Nassau
Industry 0
Highest Grade H-2
1935 Residence Same House
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 Mary Henry across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Henry (~0.92 confidence) and father William Henry (~0.92 confidence) and father William Henry (~0.92 confidence) and mother Catherine Henry (~0.92 confidence) and mother Katherine Henry (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1 Parents confidence ≈ 0.92
Father
William Henry
b. ~1875
Source father
● Household · direct · ~0.92
Father
William Henry
b. ~1875
Source father
● Household · direct · ~0.92
Father
William Henry
b. ~1876
Source father
● Household · direct · ~0.92
Mother
Catherine Henry
b. ~1876
Source mother
● Household · direct · ~0.92
Mother
Katherine Henry
b. ~1878
Source mother
● Household · direct · ~0.92
This person
Anchor record
Mary Henry
Daughter · 1940 · age 23 · b. ~1917 · New York
★ You are viewing this record
Sibling
Phillip Henry
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Henry
Sibling · 1940 · age 38
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Henry
Sibling · 1940 · age 30
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 — Nassau-County, New York Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-02692-00292)

Line Name Age Relation Occupation Birthplace
1 Jean Mullen 10 Daughter — New York
2 Roswell K Mullen 7 Son — New York
3 Charles Hearns 41 Head Proprietor England
4 Marion Hearns 39 Wife — New York
5 Alan Hearns 9 Son — New York
6 May Murphy 46 Head Bookkeeper New York
7 William Joyce 37 Brother Secretary New York
8 Michael Sullivan 48 Head Laborer Free State
9 Bertha Sullivan 46 Wife — Massachusetts
10 Ellen Sullivan 18 Daughter — Massachusetts
11 Florence Sullivan 15 Daughter — Massachusetts
12 John Sullivan 13 Son — Massachusetts
13 Edith Sullivan 11 Daughter — Massachusetts
14 Bertha Sullivan 9 Daughter — New York
15 James Sullivan 7 Son — New York
16 Robert Sullivan 4 Son — New York
17 Ernest Jr Steiger 38 Head Florist New York
18 Valerie Steiger 38 Wife — New York
19 Ernest 3Rd Steiger 15 Son — New York
20 Carl Steiger 15 Son — New York
21 Valerie Steiger 11 Daughter — New York
22 Alice Steiger 9 Daughter — New York
23 Florence Steiger 6 Daughter — New York
24 William Henry 65 Head Laborer New York
25 Catherine Henry 64 Wife — New York
26 Dorothy Henry 38 Daughter Clerk New York
27 William Henry 30 Son Mechanic New York
28 Phillip Henry 24 Son Lineman New York
29 Mary Henry THIS PERSON 23 Daughter — New York
30 Romulo Paparelli 58 Head Mason Italy
31 Lucy Paparelli 57 Wife — Italy
32 Elvira Paparelli 24 Daughter Clerk New York
33 Rachel Paparelli 22 Daughter Clerk New York
34 Frederick Paparelli 20 Son Florist New York
35 Arthur Paparelli 18 Son New Worker New York
36 Gloria Paparelli 15 Daughter — New York
37 Frederick Wood 39 Head Carpenter New York
38 Madeline Wood 38 Wife — New York
39 Ruth Wood 17 Daughter — New York
40 George Wood 16 Son — New York

Search for Mary Henry

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Pedigree Summary

Mary + 3 siblings
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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