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Mary Chapman — 1940 US Census Record

Linked across censuses

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

Our Model Tree links this Mary Chapman across the 1930 and 1940 US Censuses in Oswego-County, New York (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 10-person household.

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

1940 Census Record Details

Census Year1940
LocationOswego-County, New York
SurnameChapman
Given NameMary
Relationship to HeadDaughter
SexF
Color / RaceWhite
Age17
Marital StatusSingle
BirthplaceNew York
1935 Residence (City)Albion Town
1935 Residence (County)Oswego
Additional Details
Highest GradeG 8
1935 ResidenceSame place
Birth StateNew York
Birth CountryUnited States
Birthplace (normalized)new york
Township / WardAlbion 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.

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

Name Relation to head Relative to Mary Age Birth yr
Mary Chapman Daughter — 17 ~1923
Ruth Chapman Daughter — 21 ~1919
Arthur Chapman Head — 44 ~1896
Hubert Chapman Son — 8 ~1932
Kenneth Chapman Son — 23 ~1917
James Chapman Son — 2 ~1938
Richard Chapman Son — 10 ~1930
Homer Chapman Son — 19 ~1921
Arthur Chapman Son — 13 ~1927
Frances Chapman Spouse — 41 ~1899

Census Appearances

1930
Oswego, New …
Daughter, age 7
Oswego, New York · implied b. ~1923 — 8 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Chapman
Given Name Mary
Relationship to Head Daughter
Sex F
Color / Race White
Age 7
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
1940
Oswego-County, New …
Daughter, age 17
Oswego-County, New York · implied b. ~1923 — 10 household members
Surname Chapman
Given Name Mary
Relationship to Head Daughter
Sex F
Color / Race White
Age 17
Marital Status Single
Birthplace New York
1935 Residence (City) Albion Town
1935 Residence (County) Oswego
Highest Grade G 8
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 Chapman across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Chapman
Daughter · 1940 · age 17 · b. ~1923 · New York
★ You are viewing this record
Sibling
Ruth Chapman
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Homer Chapman
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Chapman
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hubert Chapman
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kenneth Chapman
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Chapman
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Chapman
Sibling · 1940 · age 13
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 — Oswego-County, New York Open full size

Page Contents

29 people indexed on this census page (nara:1940:m-t0627-02714-00035)

Line Name Age Relation Occupation Birthplace
41 Lois Chapman 59 Wife — New York
42 Louis Chapman 17 Son — New York
43 Herman Chapman 15 Son — New York
44 Arthur L. Chapman 44 Head Farmer New York
45 Frances Chapman 41 Wife — New York
46 Kenneth Chapman 23 Son — New York
47 Ruth Chapman 21 Daughter — New York
48 Homer Chapman 19 Son — New York
49 Mary Chapman THIS PERSON 17 Daughter — New York
50 Arthur A. Chapman 13 Son — New York
51 Richard Chapman 10 Son — New York
52 Hubert Chapman 8 Son — New York
53 James Chapman 2 Son — New York
54 Robert L. Bowers 31 Head Farmer New York
55 Emily Bowers 52 Wife — New York
56 Willie Mitchell 84 Father-in-law — New York
57 Ambrose Perry 48 Head Farmer New York
58 Elizabeth Perry 41 Wife Cook New York
59 Andrew Pinette 66 In-law — New York
60 George C. Moore 49 Head Farmer New York
61 Susie Moore 46 Wife — New York
62 Helen Moore 8 Daughter — New York
63 Joan Moore 6 Daughter — New York
64 Ernest S. Upton 49 Head Farmer Canada
65 Mildred S. Upton 50 Wife Teacher New York
66 Edward S. Upton 14 Son — New York
67 Mary Eunice Upton 10 Daughter — New York
68 Ruth Chapman 21 Servant Servant New York
69 Raymond Rick 19 Hired man Hired Man 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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