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Mary Mcdowell — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Mercer-County, Ohio

Our Model Tree links this Mary Mcdowell across the 1930 and 1940 US Censuses in Mercer-County, Ohio (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 8-person household.

Age 11 b. ~1929 Female Daughter Born: Ohio Single

1940 Census Record Details

Census Year1940
LocationMercer-County, Ohio
SurnameMcDowell
Given NameMary
Relationship to HeadDaughter
SexF
Color / RaceWhite
Age11
Marital StatusSingle
BirthplaceOhio
1935 Residence (City)Washington
1935 Residence (County)Mercer
Additional Details
Highest GradeNo 6
1935 ResidenceSame place
Birth StateOhio
Birth CountryUnited States
Birthplace (normalized)ohio
Township / WardWashington
Est. Birth Year~1929

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
William Mcdowell Son — 8 ~1932
Lester Mcdowell Son — 2 ~1938
Hazel Mcdowell Daughter — 15 ~1925
Harry Mcdowell Head — 51 ~1889
Billie Mcdowell Spouse — 42 ~1898
Carl Mcdowell Son — 13 ~1927
Margaret Mcdowell Daughter — ~1940
Mary Mcdowell Daughter — 11 ~1929

Census Appearances

1930
Mercer, Ohio
Daughter, age 1
Mercer, Ohio · implied b. ~1929 — 6 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname McDowell
Given Name Mary D
Relationship to Head Daughter
Sex F
Color / Race White
Age 1
Marital Status Single
Birthplace Ohio
Father's Birthplace Ohio
Mother's Birthplace Indiana
Birth State Ohio
Birth Country United States
Birthplace (normalized) ohio
1940
Mercer-County, Ohio
Daughter, age 11
Mercer-County, Ohio · implied b. ~1929 — 8 household members
Surname McDowell
Given Name Mary
Relationship to Head Daughter
Sex F
Color / Race White
Age 11
Marital Status Single
Birthplace Ohio
1935 Residence (City) Washington
1935 Residence (County) Mercer
Highest Grade No 6
1935 Residence Same place
Birth State Ohio
Birth Country United States
Birthplace (normalized) ohio

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 Mcdowell across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mcdowell
Daughter · 1940 · age 11 · b. ~1929 · Ohio
★ You are viewing this record
Sibling
Lester Mcdowell
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carl Mcdowell
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hazel Mcdowell
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Mcdowell
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Mcdowell
Sibling · 1940 · age
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 — Mercer-County, Ohio Open full size

Page Contents

40 people indexed on this census page (nara:1940:m-t0627-03114-00741)

Line Name Age Relation Occupation Birthplace
41 Henry N. Remke 53 Head Laborer Ohio
42 Pearl Remke 51 Wife — Ohio
43 Clara Barrett 47 Sister-in-law — Ohio
44 Henry Barrett 71 Uncle — Ohio
45 Nathaniel Boise 68 Head — Ohio
46 Emeline Boise 63 Wife — Ohio
47 Robert N. Pratt 24 Step-son Truck Driver Ohio
48 James C. Pratt 43 Step-son Laborer Ohio
49 Ira E. Pratt 41 Step-son Laborer Ohio
50 Earl E. Pratt 39 Step-son Laborer Ohio
51 John F. Pratt 36 Step-son Laborer Ohio
52 Harry Mcdowell 51 Head Laborer Ohio
53 Billie Mcdowell 42 Wife — Indiana
54 Hazel Mcdowell 15 Daughter — Ohio
55 Carl Mcdowell 13 Son — Ohio
56 Mary Mcdowell THIS PERSON 11 Daughter — Ohio
57 William Mcdowell 8 Son — Ohio
58 Lester Mcdowell 2 Son — Ohio
59 Margaret E. Mcdowell 0 Daughter — Ohio
60 William Binney 61 Head Barber Ohio
61 Pearl Binney 55 Wife — Ohio
62 Jesse Binney 20 Son Laborer Ohio
63 Vaughn Binney 15 Son — Ohio
64 E. H. Hertenstein 31 Head Farmer Ohio
65 Lucinda Hertenstein 29 Wife — Ohio
66 Marilyn Hertenstein 5 Daughter — Ohio
67 Ada Reef 73 Grandmother — Ohio
68 Mabel Mckee 47 Mother-in-law House Work Ohio
69 Margaret Mckee 14 Sister-in-law — Ohio
70 John Gutter 57 Head Farmer Ohio
71 Elizabeth Gutter 54 Wife — Ohio
72 Alfred Gutter 31 Son Truck Driver Ohio
73 Frances Gutter 19 Daughter Seamstress Ohio
74 Albert Gutter 17 Son Farmer Ohio
75 John, Jr. Gutter 12 Son — Ohio
76 Emery Dierney 57 Head Assembler Ohio
77 Beora Dierney 51 Wife — Ohio
78 Charles Dierney 32 Head Core Maker Ohio
79 Genevieve Dierney 25 Wife — Ohio
80 Henry J. Heming 53 Head Blacksmith Ohio

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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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