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Mary Knapp — 1940 US Census Record

Linked across censuses

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

Our Model Tree links this Mary Knapp across the 1930 and 1940 US Censuses in Wayne-County, New York (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 6-person household.

Age 14 b. ~1926 Female Daughter Born: New York Single

1940 Census Record Details

Census Year1940
LocationWayne-County, New York
SurnameKnapp
Given NameMary Louise
Relationship to HeadDaughter
SexF
Color / RaceWhite
Age14
Marital StatusSingle
BirthplaceNew York
1935 Residence (City)Lyons Village
1935 Residence (County)Wayne
Additional Details
Income (1939)0
Highest GradeS 8
1935 ResidenceSame place
Birth StateNew York
Birth CountryUnited States
Birthplace (normalized)new york
Township / WardLyons Village
Est. Birth Year~1926

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
Norine Knapp Daughter — 6 ~1934
Mary Knapp Daughter — 14 ~1926
Henry Knapp Head — 42 ~1898
Frances Knapp Spouse — 38 ~1902
Barbara Knapp Daughter — 17 ~1923
Harold Knapp Son — 12 ~1928

Census Appearances

1930
Wayne, New …
Daughter, age 4
Wayne, New York · implied b. ~1926 — 7 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Knapp
Given Name Mary Louise
Relationship to Head Daughter
Sex F
Color / Race White
Age 4
Marital Status Single
Birthplace New York
Father's Birthplace New York
Mother's Birthplace New York
Can Read/Write No
Birth State New York
Birth Country United States
Birthplace (normalized) new york
1940
Wayne-County, New …
Daughter, age 14
Wayne-County, New York · implied b. ~1926 — 6 household members
Surname Knapp
Given Name Mary Louise
Relationship to Head Daughter
Sex F
Color / Race White
Age 14
Marital Status Single
Birthplace New York
1935 Residence (City) Lyons Village
1935 Residence (County) Wayne
Income (1939) 0
Highest Grade S 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 Knapp across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Knapp
Daughter · 1940 · age 14 · b. ~1926 · New York
★ You are viewing this record
Sibling
Barbara Knapp
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harold Knapp
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Norine Knapp
Sibling · 1940 · age 6
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-t0627-02800-00616)

Line Name Age Relation Occupation Birthplace
1 Herbert L. Ungerer 42 Head Dentist New York
2 Dorothy T. Ungerer 43 Wife — Massachusetts
3 Charles A. Towlerton 14 Step-son — New York
4 Nellie E. Towlerton 70 Mother-in-law — Connecticut
5 Grace Richardson 25 Lodger Trained Nurse New York
6 Margaret Provakine 23 Lodger Lab. Technician New York
7 Albertus A. Floodman 44 Head Mail Clerk New York
8 Alice Floodman 37 Wife — New York
9 Mary E. Floodman 69 Mother — New York
10 Frank Gillette 27 Head Sales Manager Nebraska
11 Dorothy Gillette 24 Wife — Nebraska
12 Joan Gillette 6 Daughter — Canada-English
13 Halsey Kempney 26 Partner Magazine Salesman New York
14 Elisabeth Kempney 29 Partner — Austria
15 Joyce Kempney 2 Daughter of partner — New York
16 Emory Streeter 62 Head Traveling Salesman New York
17 Belle M. Streeter 62 Wife — New York
18 Elizabeth Murphy 62 Housekeeper Housekeeper New York
19 Irvin Kaiser 48 Head Proprietor New York
20 Eloise Kaiser 49 Wife — New York
21 Elias J. Klippel 33 Head — New York
22 Bertha T. Klippel 28 Wife — New York
23 Jennie Warncke 47 Housekeeper Housekeeper New York
24 John Sloat 57 Head Civil Engineer New York
25 May Sloat 52 Wife — New York
26 Sally Sloat 15 Daughter — New York
27 Grace H. Cumbers 56 Sister-in-law — New York
28 Archie Bowler 40 Head Principal New York
29 Catherine Bowler 39 Wife — New York
30 Joseph Bowler 11 Son — New York
31 Elizabeth Gregor 64 Mother-in-law — New York
32 Henry P. Knapp 42 Head Mail Clerk New York
33 Frances T. Knapp 38 Wife — New York
34 Barbara L. Knapp 17 Daughter — New York
35 Mary Louise Knapp THIS PERSON 14 Daughter — New York
36 Harold P. Knapp 12 Son — New York
37 Norine Knapp 6 Daughter — New York
38 Adam Hanson 26 Head Machinist New York
39 Elizabeth Hanson 29 Wife Inspector New York
40 Janice E. Hanson 6 Daughter — 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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