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John Linn — 1940 US Census Record

Linked across censuses

1940 United States Federal Census · Mercer-County, Ohio

Our Model Tree links this John Linn across the 1930 and 1940 US Censuses in Mercer-County, Ohio (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 8-person household.

Age 18 b. ~1922 Male Son Born: Ohio Single

1940 Census Record Details

Census Year1940
LocationMercer-County, Ohio
SurnameLinn
Given NameJohn
Relationship to HeadSon
SexM
Color / RaceWhite
Age18
Marital StatusSingle
BirthplaceOhio
1935 Residence (City)Washington Twp.
1935 Residence (County)Mercer
Additional Details
OccupationFarmer
IndustryFarm
Class of WorkerOA
Hours Worked60
Income (1939)0
Highest GradeHs 2
1935 ResidenceSame place
Birth StateOhio
Birth CountryUnited States
Birthplace (normalized)ohio
OccupationFarmer
Township / WardWashington Twp
Est. Birth Year~1922

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 John Age Birth yr
Leon Linn Son — 23 ~1917
Betty Linn Daughter — 12 ~1928
John Linn Son — 18 ~1922
Harry Linn Son — 14 ~1926
Harold Linn Son — 14 ~1926
Marie Linn Spouse — 49 ~1891
Delphia Linn Son — 21 ~1919
John Linn Head — 60 ~1880

Census Appearances

1930
Mercer, Ohio
Son, age 8
Mercer, Ohio · implied b. ~1922 — 12 household members
●  Primary link · ~Confirmed · 2 sources
XGBoost Household
Surname Linn
Given Name John
Relationship to Head Son
Sex M
Color / Race White
Age 8
Marital Status Single
Birthplace Ohio
Father's Birthplace Ohio
Mother's Birthplace Ohio
Birth State Ohio
Birth Country United States
Birthplace (normalized) ohio
1940
Mercer-County, Ohio
Son, age 18
Mercer-County, Ohio · implied b. ~1922 — 8 household members
Surname Linn
Given Name John
Relationship to Head Son
Sex M
Color / Race White
Age 18
Marital Status Single
Birthplace Ohio
1935 Residence (City) Washington Twp.
1935 Residence (County) Mercer
Occupation Farmer
Industry Farm
Class of Worker OA
Hours Worked 60
Income (1939) 0
Highest Grade Hs 2
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 John Linn across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Linn
Son · 1940 · age 18 · b. ~1922 · Ohio
★ You are viewing this record
Sibling
Leon Linn
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harold Linn
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Linn
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Delphia Linn
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harry Linn
Sibling · 1940 · age 14
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-t0627-03114-00744)

Line Name Age Relation Occupation Birthplace
1 S. R. Heitkamp 53 Head — Ohio
2 Blanche Heitkamp 45 Wife — Ohio
3 Mary E. Heitkamp 24 Daughter Clerk Ohio
4 Robert R. Heitkamp 16 Son — Ohio
5 John O. Linn 60 Head — Ohio
6 Marie Linn 49 Wife — Ohio
7 Leon Linn 23 Son Farmer Ohio
8 Delphia Linn 21 Son Farmer Ohio
9 John Linn THIS PERSON 18 Son Farmer Ohio
10 Harry Linn 14 Son — Ohio
11 Harold Linn 14 Son — Ohio
12 Betty Jean Linn 12 Daughter — Ohio
13 Edward Heitkamp 31 Head Farmer Ohio
14 Hilda Heitkamp 30 Wife — Ohio
15 Dorothy Heitkamp 7 Daughter — Ohio
16 Eileen Heitkamp 5 Daughter — Ohio
17 Paul Heitkamp 4 Son — Ohio
18 Wilford Heitkamp 2 Son — Ohio
19 Duthier O. Rene 40 Head Gas Station France
20 Beeta Rene 39 Wife — Michigan
21 Vivete Rene 5 Daughter — Michigan
22 Joseph Rene 4 Son — Indiana
23 Dwight Rene 2 Son — Indiana
24 Raymond Rene 0 Son — Ohio
25 Ray Vondel 29 Head Farming Ohio
26 Cecilia Vondel 25 Wife — Ohio
27 Joann Vondel 2 Daughter — Ohio
28 Christian Vroman 50 Head Farmer Ohio
29 Elizabeth Vroman 43 Wife Farmer Ohio
30 Madonna Vroman 25 Daughter — Ohio
31 Luella Vroman 20 Daughter Bookkeeper Ohio
32 Walter Vroman 19 Son Farmer Ohio
33 Bernadine Vroman 17 Daughter — Ohio
34 Wilfred Vroman 16 Son — Ohio
35 Doris Vroman 13 Niece — Indiana
36 Frederick Vroman 7 Nephew — Indiana
37 Anna Siegrist 63 Head — Ohio
38 Jacob Siegrist 37 Son Farmer Ohio
39 Edward Siegrist 35 Son Farmer Ohio
40 Monica Siegrist 31 Daughter — 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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