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Charles Hartman — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hamilton-County, Ohio
Our Model Tree links this Charles Hartman across the 1920, 1930 and 1940 US Censuses in Hamilton-County, Ohio (XGBoost, ~Confirmed) — first a head (b.~1874), then head of a 4-person household.
Age 66
b. ~1874
Male
Head
Born: Ohio
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Hamilton-County, Ohio |
| Surname | Hartman |
| Given Name | Charles |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 66 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Cincinnati City |
| 1935 Residence (County) | Hamilton |
| Additional Details | |
| Occupation | Caretaker |
| Industry | medical College |
| Class of Worker | PW |
| Hours Worked | 54 |
| Income (1939) | 1000 |
| Highest Grade | No 4 |
| 1935 Residence | Same house |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Caretaker |
| Township / Ward | Cincinnati City |
| Est. Birth Year | ~1874 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Charles | Age | Birth yr |
|---|---|---|---|---|
| Charles Hartman | Head | — | 66 | ~1874 |
| Albert Hartman | Son | — | 23 | ~1917 |
| Charles Hartman | Son | — | 26 | ~1914 |
| Anna Hartman | Spouse | — | 64 | ~1876 |
Census Appearances
1920
Hamilton, Ohio
Head, age 47
Hamilton, Ohio · implied b. ~1873 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hartmann |
| Given Name | Charles |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Ohio |
| Father's Birthplace | Germany |
| Mother's Birthplace | Ohio |
| Occupation | Proprietor |
| Industry | Feed Store |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Hamilton, Ohio
Head, age 57
Hamilton, Ohio · implied b. ~1873 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hartmann |
| Given Name | Charles |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Ohio |
| Age at First Marriage | 30 |
| Father's Birthplace | Germany |
| Mother's Birthplace | Ohio |
| Occupation | Retired |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 2500 |
| Radio Set | R |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Hamilton-County, Ohio
Head, age 66
Hamilton-County, Ohio · implied b. ~1874 — 4 household members
| Surname | Hartman |
| Given Name | Charles |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 66 |
| Marital Status | Married |
| Birthplace | Ohio |
| 1935 Residence (City) | Cincinnati City |
| 1935 Residence (County) | Hamilton |
| Occupation | Caretaker |
| Industry | medical College |
| Class of Worker | PW |
| Hours Worked | 54 |
| Income (1939) | 1000 |
| Highest Grade | No 4 |
| 1935 Residence | Same house |
| 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 Charles Hartman across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Charles Hartman
Head · 1940 · age 66 · b. ~1874 · Ohio
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Hamilton-County, Ohio
Open full size
1940 US Federal Census — Hamilton-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03187-00807)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Berdella Cooper | 40 | wife | — | Illinois |
| 42 | Willard Batting | 23 | head | Fitter | Kentucky |
| 43 | Jack Batting | 12 | son | — | Kentucky |
| 44 | Constance Batting | 2 | daughter | — | Ohio |
| 45 | Elizabeth Fry | 66 | mother in law | — | Illinois |
| 46 | Harry Dustal | 40 | head | Meat Cutter | Ohio |
| 47 | Marie Dustal | 32 | wife | — | Ohio |
| 48 | David Kasting | 25 | head | Policeman | Ohio |
| 49 | Helen Kasting | 25 | wife | — | Ohio |
| 50 | Patricia Ann Kasting | 0 | daughter | — | Ohio |
| 51 | Daniel Neumann | 46 | head | Sheet Metal Worker | Ohio |
| 52 | Luella Neumann | 48 | wife | — | Ohio |
| 53 | Frank Kenner | 48 | head | Printer | Ohio |
| 54 | Anna Kenner | 43 | wife | — | Ohio |
| 55 | Frances Kenner | 5 | daughter | — | Ohio |
| 56 | Margaret Kenner | 4 | daughter | — | Ohio |
| 57 | Joseph T Robert | 43 | head | Sheet Metal | Ohio |
| 58 | Elizabeth Robert | 44 | wife | — | Ohio |
| 59 | Betty Lee Robert | 6 | daughter | — | Ohio |
| 60 | Herman Genge | 73 | head | Auto Mechanic | Pennsylvania |
| 61 | Caroline Genge | 73 | wife | — | Pennsylvania |
| 62 | Harry Girty | 54 | head | Printing Press | Kentucky |
| 63 | Margaret Girty | 44 | wife | — | Kentucky |
| 64 | Ronald Girty | 18 | son | — | Ohio |
| 65 | Robert Lee Girty | 9 | son | — | Ohio |
| 66 | John W Dearing | 66 | head | Reinforced Steel Worker | England |
| 67 | Rosa Dearing | 49 | wife | — | Ohio |
| 68 | John W Dearing | 20 | son | Shipping Clerk | Ohio |
| 69 | Stella M Dearing | 19 | daughter | New Worker | Ohio |
| 70 | Harry C Dearing | 18 | son | New Worker | Ohio |
| 71 | Herbert J Dearing | 14 | son | — | Ohio |
| 72 | Virginia Ann Dearing | 9 | daughter | — | Ohio |
| 73 | Charles Hartman THIS PERSON | 66 | head | Caretaker | Ohio |
| 74 | Anna Hartman | 64 | wife | — | Ohio |
| 75 | Charles Hartman | 26 | son | Metal Worker | Ohio |
| 76 | Albert Hartman | 23 | son | Laborer | Ohio |
| 77 | George Naegele | 30 | head | Interior Decorator | Ohio |
| 78 | Madeline Naegele | 27 | wife | — | Ohio |
| 79 | George Jr Naegele | 2 | son | — | Ohio |
| 80 | Carl Painett | 64 | head | Roofer | Bohemia |
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)