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MJ

Mary John — 1940 US Census Record

Linked across censuses

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

Our Model Tree links this Mary John across the 1930 and 1940 US Censuses in Wayne-County, New York (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 8-person household.

Age 17 b. ~1923 Female Daughter Born: New York Single

1940 Census Record Details

Census Year1940
LocationWayne-County, New York
SurnameJohn
Given NameMary
Relationship to HeadDaughter
SexF
Color / RaceWhite
Age17
Marital StatusSingle
BirthplaceNew York
1935 Residence (City)R
1935 Residence (County)Wayne
Additional Details
Highest GradeH 2
1935 ResidenceNew York
Birth StateNew York
Birth CountryUnited States
Birthplace (normalized)new york
Township / WardGalen Town
Est. Birth Year~1923

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.

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

Name Relation to head Relative to Mary Age Birth yr
Flora John Daughter — 19 ~1921
Francis John Daughter — 2 ~1938
Frank John Head — 44 ~1896
Jennie John Spouse — 35 ~1905
Delores John Daughter — 7 ~1933
Thelma John Daughter — 15 ~1925
Ann John Daughter — 11 ~1929
Mary John Daughter — 17 ~1923

Census Appearances

1930
Ontario, New …
Daughter, age 7
Ontario, New York · implied b. ~1923 — 4 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname John
Given Name Mary A.
Relationship to Head Daughter
Sex F
Color / Race White
Age 7
Marital Status Single
Birthplace New York
Father's Birthplace Syria
Mother's Birthplace New York
Birth State New York
Birth Country United States
Birthplace (normalized) new york
1940
Wayne-County, New …
Daughter, age 17
Wayne-County, New York · implied b. ~1923 — 8 household members
Surname John
Given Name Mary
Relationship to Head Daughter
Sex F
Color / Race White
Age 17
Marital Status Single
Birthplace New York
1935 Residence (City) R
1935 Residence (County) Wayne
Highest Grade H 2
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.
Linked across censuses
Our Model Tree links Mary John across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary John
Daughter · 1940 · age 17 · b. ~1923 · New York
★ You are viewing this record
Sibling
Francis John
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ann John
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thelma John
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Flora John
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Delores John
Sibling · 1940 · age 7
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 — Wayne-County, New York Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-02800-00495)

Line Name Age Relation Occupation Birthplace
1 John 19 Son Labor New York
2 Lena 17 Daughter Labor New York
3 Frank Lester 51 Head Letter Carrier New York
4 Jennie Lester 54 Wife — New York
5 Leon Burt 35 Head Farmer New York
6 Lola Ida Burt 33 Wife — New York
7 Joan Burt 3 Daughter — New York
8 Frank Burt 2 Son — New York
9 Olive Johnson 46 Head Farm Labor Michigan
10 Mabel Johnson 35 Wife — New York
11 Robert Johnson 13 Son — Michigan
12 Maxine Johnson 11 Daughter — Michigan
13 John Thone 46 Head Mill Hand New York
14 Ruth Thone 35 Wife — Illinois
15 William Thone 10 Son — New York
16 Frank Forjone 44 Head Farmer Italy
17 Hazel Forjone 42 Wife — New York
18 Kenneth Forjone 22 Son Farmer New York
19 Elaine Forjone 19 Daughter-in-law — New York
20 Louis A. Petrosino 45 Head Farmer New York
21 Mable Petrosino 37 Wife — New York
22 Loretta Petrosino 14 Daughter Laborer New York
23 Michael Petrosino 13 Son — New York
24 Arthur Petrosino 11 Son — New York
25 George Petrosino 9 Son — New York
26 Mike Margo 51 Head Farmer Italy
27 Antonia Margo 57 Wife — Italy
28 James Poole 57 Head Farm Labor Pennsylvania
29 Marie Poole 32 Wife — West Virginia
30 Wayne Poole 3 Son — Maryland
31 Caroline Poole 2 Daughter — Maryland
32 Frank John 44 Head Farmer New York
33 Jennie John 35 Wife — New York
34 Flora John 19 Daughter — New York
35 Mary John THIS PERSON 17 Daughter — New York
36 Thelma John 15 Daughter — New York
37 Ann John 11 Daughter — New York
38 Delores John 7 Daughter — New York
39 Francis John 2 Daughter — New York
40 Edward Hickox 52 Head Mechanic Iowa

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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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