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John Mann — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Monroe-County, Ohio
Our Model Tree links this John Mann across the 1930 and 1940 US Censuses in Monroe-County, Ohio (XGBoost, ~Confirmed) — first a son (b.~1920), then head of a 6-person household.
Age 20
b. ~1920
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Monroe-County, Ohio |
| Surname | Mann |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Malaga |
| 1935 Residence (County) | Monroe |
| Additional Details | |
| Occupation | farmer |
| Industry | farm |
| Class of Worker | NP |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Farmer |
| Township / Ward | Malaga |
| Est. Birth Year | ~1920 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Miles Mann | Head | — | 46 | ~1894 |
| Mary Mann | Spouse | — | 42 | ~1898 |
| Kenneth Mann | Son | — | 15 | ~1925 |
| James Mann | Son | — | 21 | ~1919 |
| John Mann | Son | — | 20 | ~1920 |
| Richard Mann | Son | — | 9 | ~1931 |
Census Appearances
1930
Monroe, Ohio
Son, age 10
Monroe, Ohio · implied b. ~1920 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mann |
| Given Name | John E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Monroe-County, Ohio
Son, age 20
Monroe-County, Ohio · implied b. ~1920 — 6 household members
| Surname | Mann |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Malaga |
| 1935 Residence (County) | Monroe |
| Occupation | farmer |
| Industry | farm |
| Class of Worker | NP |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 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.
Our Model Tree links John Mann across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Mann
Son · 1940 · age 20 · b. ~1920 · Ohio
★ You are viewing this record
Sibling
Richard Mann
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Kenneth Mann
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Mann
Sibling · 1940 · age 21
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 — Monroe-County, Ohio
Open full size
1940 US Federal Census — Monroe-County, Ohio
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-03117-00298)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Earl Brownfield | 5 | son | — | — |
| 42 | Carl Brownfield | 4 | son | — | — |
| 43 | Emery Brownfield | 3 | son | — | — |
| 44 | Mary Brownfield | 1 | daughter | — | — |
| 45 | Clarence Burkhart | 54 | Head | Farmer | Ohio |
| 46 | Rebecca Burkhart | 51 | wife | — | Ohio |
| 47 | Francis Burkhart | 28 | son | Quarryman | Ohio |
| 48 | Everett Burkhart | 19 | son | Farmer | Ohio |
| 49 | Luzelda Burkhart | 17 | daughter | Housework | Ohio |
| 50 | Virginia Burkhart | 14 | daughter | — | Ohio |
| 51 | Joseph Burkhart | 12 | son | — | Ohio |
| 52 | Raphael Butler | 32 | Head | Farmer | Ohio |
| 53 | Frank Butler | 29 | brother | Farmer | Ohio |
| 54 | Paul Butler | 25 | brother | Farmer | Ohio |
| 55 | Ronald Butler | 19 | brother | Farmer | Ohio |
| 56 | Mary Latta | 62 | Head | — | Ohio |
| 57 | Samuel Christman | 53 | Head | Farmer | Ohio |
| 58 | Maggie Christman | 55 | wife | — | Ohio |
| 59 | Vernon Christman | 18 | son | — | Ohio |
| 60 | Frank Christman | 14 | son | — | Ohio |
| 61 | Miles Mann | 46 | Head | Farmer | Ohio |
| 62 | Mary Mann | 42 | wife | — | Ohio |
| 63 | James Mann | 21 | son | Farmer | Ohio |
| 64 | John Mann THIS PERSON | 20 | son | Farmer | Ohio |
| 65 | Kenneth Mann | 15 | son | — | Ohio |
| 66 | Richard Mann | 9 | son | — | Ohio |
| 67 | Ross Mann | 55 | Head | Farmer | Ohio |
| 68 | Anna Mann | 54 | wife | — | Ohio |
| 69 | Roy Mann | 18 | son | Farmer | Ohio |
| 70 | Floyd Mann | 16 | son | — | Ohio |
| 71 | Charles Sloan | 55 | Head | Farmer | Ohio |
| 72 | Charlotte Sloan | 52 | wife | — | Ohio |
| 73 | David Lucas | 5 | grandson | — | — |
| 74 | George Sloan | 64 | Head | — | Ohio |
| 75 | Irwin Sloan | 26 | son | Farmer | Oklahoma |
| 76 | Marie Sloan | 22 | daughter | — | Oklahoma |
| 77 | Leroy Sloan | 21 | son | Ccc | Ohio |
| 78 | James Sloan | 5 | grandson | — | — |
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)