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John Schroeder — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mercer-County, Ohio
Our Model Tree links this John Schroeder across the 1920, 1930 and 1940 US Censuses in Mercer-County, Ohio (XGBoost, ~Confirmed) — first a head (b.~1890), then head of a 5-person household.
Age 50
b. ~1890
Male
Head
Born: Ohio
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Mercer-County, Ohio |
| Surname | Schroeder |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Coldwater Village |
| Additional Details | |
| Occupation | Proprietor |
| Industry | Filling Stat. |
| Class of Worker | OA |
| Hours Worked | 50 |
| Income (1939) | 2044 |
| Highest Grade | 8 |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Proprietor |
| Township / Ward | Coldwater Village |
| Est. Birth Year | ~1890 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Alvina Dues | Daughter | — | 34 | ~1906 |
| John Schroeder | Head | — | 50 | ~1890 |
| Marylin Dues | Other | — | 5 | ~1935 |
| Leo Dues | Other | — | 34 | ~1906 |
| Nettie Schroeder | Spouse | — | 42 | ~1898 |
Census Appearances
1920
Mercer, Ohio
Other, age 28
Mercer, Ohio · implied b. ~1892 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schroeder |
| Given Name | John |
| Relationship to Head | Boarder |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Mercer, Ohio
Head, age 40
Mercer, Ohio · implied b. ~1890 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schroeder |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Ohio |
| Age at First Marriage | 32 |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 3500 |
| Radio Set | R |
| Veteran | No |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Mercer-County, Ohio
Head, age 50
Mercer-County, Ohio · implied b. ~1890 — 5 household members
| Surname | Schroeder |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Coldwater Village |
| Occupation | Proprietor |
| Industry | Filling Stat. |
| Class of Worker | OA |
| Hours Worked | 50 |
| Income (1939) | 2044 |
| Highest Grade | 8 |
| 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.
Our Model Tree links John Schroeder across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Schroeder
Head · 1940 · age 50 · b. ~1890 · Ohio
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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
1940 US Federal Census — Mercer-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03114-00031)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Elizabeth Bernard | 76 | Mother-in-law | None | Ohio |
| 42 | Theo H. Oppenheim | 43 | Head | Secretary | Ohio |
| 43 | Anna Marie Oppenheim | 48 | Wife | — | Ky |
| 44 | Marita Oppenheim | 19 | daughter | — | Ohio |
| 45 | T. Vincent Oppenheim | 17 | son | — | Ohio |
| 46 | Frank M. Oppenheim | 14 | son | — | Ohio |
| 47 | Virginia Ann Oppenheim | 13 | daughter | — | Ohio |
| 48 | Rhonna M. Oppenheim | 10 | daughter | — | Ohio |
| 49 | Walter J. Oppenheim | 9 | son | — | Ohio |
| 50 | Rose Marie Oppenheim | 5 | daughter | — | Ohio |
| 51 | Minnie Wendel | 25 | Maid | Maid | Ohio |
| 52 | M. Wendel | 73 | Head | — | Ohio |
| 53 | Christina B. Wendel | 69 | Wife | — | Ohio |
| 54 | Herbert Wendel | 44 | son | Laborer | Ohio |
| 55 | John Schroeder THIS PERSON | 50 | Head | Proprietor | Ohio |
| 56 | Nettie Schroeder | 42 | Wife | — | Ohio |
| 57 | Leo Dues | 34 | son-in-law | Part Owner | Ohio |
| 58 | Alvina Dues | 34 | daughter | — | Ohio |
| 59 | Marylin Dues | 5 | g-daughter | — | Ohio |
| 60 | Sylvester Dalk | 31 | Head | Laborer | Ohio |
| 61 | Annetta Dalk | 26 | wife | — | Ohio |
| 62 | James H. Dalk | 1 | son | — | Ohio |
| 63 | Mary E. Hoying | 58 | head | — | Ohio |
| 64 | Vesta Beaver | 24 | head | Laborer | Ohio |
| 65 | Rosanna E. Beaver | 20 | wife | Clerk | Ohio |
| 66 | Jerry Beaver | 2 | son | — | Ohio |
| 67 | Magdalena Beaver | 1 | daughter | — | Ohio |
| 68 | M. J. Dalk | 60 | Head | Assembling | Ohio |
| 69 | Elizabeth B. Dalk | 51 | wife | — | Indiana |
| 70 | Elizabeth Richards | 77 | Mother-in-law | — | Illinois |
| 71 | A. J. Lechner | 48 | Head | Insurance Agent | Ohio |
| 72 | Dora Lechner | 46 | wife | — | Ohio |
| 73 | Mary Ann Lechner | 18 | daughter | Student | Ohio |
| 74 | Helen Lechner | 17 | daughter | Student | Ohio |
| 75 | Tom Lechner | 15 | son | Student | Ohio |
| 76 | Virginia Lechner | 14 | daughter | Student | Ohio |
| 77 | Mark Lechner | 12 | son | — | Ohio |
| 78 | Urban B. Hoying | 38 | Head | Setting Eyes | Ohio |
| 79 | Cleopha Hoying | 36 | Wife | — | Ohio |
| 80 | Ralph Hoying | 14 | son | Student | Ohio |
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)