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Mary Curtis — 1940 US Census Record

Linked across censuses

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

Our Model Tree links this Mary Curtis across the 1930 and 1940 US Censuses in New-York-County, New York (XGBoost, ~Confirmed) — first a daughter (b.~1915), then head of a 14-person household.

Age 25 b. ~1915 Female Daughter Born: New York Single

1940 Census Record Details

Census Year1940
LocationNew-York-County, New York
SurnameCurtis
Given NameMary
Relationship to HeadDaughter
SexF
Color / RaceWhite
Age25
Marital StatusSingle
BirthplaceNew York
1935 Residence (City)New York City
1935 Residence (County)New York
Additional Details
Income (1939)0
Highest GradeH-4
1935 ResidenceSame place
Birth StateNew York
Birth CountryUnited States
Birthplace (normalized)new york
Township / WardNew York City
Est. Birth Year~1915

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.

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

Name Relation to head Relative to Mary Age Birth yr
Anna Lazzola Daughter — 14 ~1926
Catherine Curtis Daughter — 21 ~1919
Mary Curtis Daughter — 25 ~1915
John Lazzola Head — 50 ~1890
Margaret Curtis Other — 53 ~1887
Martha Sullivan Other — 29 ~1911
John Curtis Son — 13 ~1927
Donald Curtis Son — 20 ~1920
William Curtis Son — 23 ~1917
James Curtis Son — 27 ~1913
William Sullivan Son — ~1940
James Lazzola Son — 16 ~1924
Paul Lazzola Son — 24 ~1916
Mary Lazzola Spouse — 43 ~1897

Census Appearances

1930
New York, …
Daughter, age 14
New York, New York · implied b. ~1916 — 4 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Carti
Given Name Mary
Relationship to Head Daughter
Sex F
Color / Race White
Age 14
Marital Status Single
Birthplace New York
Father's Birthplace Italy
Mother's Birthplace Italy
Can Read/Write Yes
Birth State New York
Birth Country United States
Birthplace (normalized) new york
1940
New-York-County, New …
Daughter, age 25
New-York-County, New York · implied b. ~1915 — 14 household members
Surname Curtis
Given Name Mary
Relationship to Head Daughter
Sex F
Color / Race White
Age 25
Marital Status Single
Birthplace New York
1935 Residence (City) New York City
1935 Residence (County) New York
Income (1939) 0
Highest Grade H-4
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 Mary Curtis across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Curtis
Daughter · 1940 · age 25 · b. ~1915 · New York
★ You are viewing this record
Sibling
William Curtis
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Lazzola
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Lazzola
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Curtis
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Sullivan
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Curtis
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Curtis
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Curtis
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Lazzola
Sibling · 1940 · age 16
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 — New-York-County, New York Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-02631-00066)

Line Name Age Relation Occupation Birthplace
1 John Lazzola 50 Head Porter Italy
2 Mary Lazzola 43 Wife — Italy
3 Paul Lazzola 24 Son Auto Mechanic New York
4 James Lazzola 16 Son — New York
5 Anna Lazzola 14 Daughter — New York
6 Margaret Curtis 53 Mother — New York
7 James Curtis 27 Son Elevator Operator New York
8 Mary Curtis THIS PERSON 25 Daughter — New York
9 William Curtis 23 Son General Helper New York
10 Catherine Curtis 21 Daughter Dressmaker New York
11 Donald Curtis 20 Son Delivery Boy New York
12 John Curtis 13 Son — New York
13 Martha Sullivan 29 Mother Operator New York
14 William Sullivan 0 Son — New York
15 John Walsh 42 Head Watchman New York
16 Edith Walsh 20 Daughter New Worker New York
17 Mary Walsh 16 Daughter — New York
18 Catherine Walsh 14 Daughter — New York
19 William Caston 38 Head Longshoreman New Jersey
20 Julia Caston 37 Wife — New Jersey
21 Margaret Caston 16 Daughter — New York
22 James Caston 12 Son — New York
23 Sara Nicholson 76 Head — New York
24 George Nicholson 74 Wife — New York
25 Robert Hoy 43 Head Delivery Man New York
26 Mary Hoy 40 Wife — New York
27 Anna Hoy 22 Daughter Typist New York
28 Elizabeth Hoy 20 Daughter Stenographer New York
29 Robert Hoy 18 Son Clerk New York
30 William Hoy 17 Son — New York
31 Frances Hoy 16 Son — New York
32 Helen Donahue 59 Head — New York
33 Rose Donahue 23 Daughter Candy Maker New York
34 Honora Cronin 39 Head Clerk New York
35 Helen Cronin 37 Wife — New York
36 Daniel Cronin 14 Son — New York
37 Peter Schauff 43 Head Clerk New York
38 Elizabeth Schauff 42 Wife — New York
39 Robert Schauff 18 Son — New York
40 William Schauff 17 Son — 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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