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Charles Gregory — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Montgomery-County, Ohio
Our Model Tree links this Charles Gregory across the 1930 and 1940 US Censuses in Montgomery-County, Ohio (XGBoost, ~Confirmed) — first a son (b.~1918), then head of a 13-person household.
Age 22
b. ~1918
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Montgomery-County, Ohio |
| Surname | Gregory |
| Given Name | Charles |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Dayton |
| Additional Details | |
| Occupation | sheet metal work |
| Industry | hardware co |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1000 |
| Highest Grade | H 4 |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Sheet Metal Work |
| Township / Ward | Dayton |
| Est. Birth Year | ~1918 |
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.
13 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Charles | Age | Birth yr |
|---|---|---|---|---|
| George Gregory | Son | — | 18 | ~1922 |
| Francis Gregory | Son | — | 24 | ~1916 |
| Theresa Gregory | Daughter | — | 20 | ~1920 |
| Charles Gregory | Son | — | 22 | ~1918 |
| Joseph Ruef | Other | — | 26 | ~1914 |
| Paul Gregory | Son | — | 14 | ~1926 |
| Ross Gregory | Head | — | 50 | ~1890 |
| Frances Whitewell | Other | — | 65 | ~1875 |
| Helen Gregory | Daughter | — | 26 | ~1914 |
| Ann Gregory | Daughter | — | 7 | ~1933 |
| Joan Gregory | Daughter | — | 12 | ~1928 |
| Gladys Gregory | Son | — | 16 | ~1924 |
| Thomas Gregory | Son | — | 10 | ~1930 |
Census Appearances
1930
Montgomery, Ohio
Son, age 12
Montgomery, Ohio · implied b. ~1918 — 14 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gregory |
| Given Name | Charles |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Germany |
| Mother's Birthplace | Penn |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Montgomery-County, Ohio
Son, age 22
Montgomery-County, Ohio · implied b. ~1918 — 13 household members
| Surname | Gregory |
| Given Name | Charles |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Dayton |
| Occupation | sheet metal work |
| Industry | hardware co |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1000 |
| Highest Grade | H 4 |
| 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 Gregory across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Charles Gregory
Son · 1940 · age 22 · b. ~1918 · Ohio
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Sibling
Joan Gregory
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Gregory
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ann Gregory
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Theresa Gregory
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Gregory
Sibling · 1940 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gladys Gregory
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Gregory
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Gregory
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Gregory
Sibling · 1940 · age 10
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 — Montgomery-County, Ohio
Open full size
1940 US Federal Census — Montgomery-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03256-00735)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Giovani Vallo | 15 | Daughter | — | Ohio |
| 2 | John Jr Vallo | 13 | Son | — | Ohio |
| 3 | Victor Vallo | 9 | Son | — | Ohio |
| 4 | Virgil Vallo | 7 | Son | — | Ohio |
| 5 | Theodore Barlow | 63 | Head | Salesman | Ohio |
| 6 | Mary F Barlow | 59 | Wife | None | New York |
| 7 | James R Barlow | 16 | Son | None | Ohio |
| 8 | Charles Rooney | 50 | Brother in law | None | New York |
| 9 | Howard H Bailey | 28 | Head | None | Ohio |
| 10 | Lylora Bailey | 67 | Mother | None | Ohio |
| 11 | Glendon Spell | 48 | Head | Foreman | Indiana |
| 12 | Martha Spell | 38 | Wife | None | Kansas |
| 13 | Vera Kremer | 31 | Lodger | Office Clerk | Ohio |
| 14 | Charles Potter | 67 | Head | None | Ohio |
| 15 | Emma Potter | 62 | Wife | None | Ohio |
| 16 | Thomas King | 49 | Head | Machinist | Ohio |
| 17 | Grace King | 47 | Wife | None | Ohio |
| 18 | Patty King | 16 | Daughter | None | Ohio |
| 19 | Ross Gregory | 50 | Head | None | Pennsylvania |
| 20 | Helen Gregory | 26 | Daughter | Nurse | Virginia |
| 21 | Francis Gregory | 24 | Son | Book-Keeper | Virginia |
| 22 | Charles Gregory THIS PERSON | 22 | Son | Sheet Metal Work | Ohio |
| 23 | Theresa Gregory | 20 | Daughter | Nurse-Maid | Ohio |
| 24 | George Gregory | 18 | Son | Inspector | Ohio |
| 25 | Gladys Gregory | 16 | Son | None | Ohio |
| 26 | Paul Gregory | 14 | Son | None | Ohio |
| 27 | Joan Gregory | 12 | Daughter | None | Ohio |
| 28 | Thomas Gregory | 10 | Son | None | Ohio |
| 29 | Ann Gregory | 7 | Daughter | None | Ohio |
| 30 | Frances Whitewell | 65 | Mother | None | Pennsylvania |
| 31 | Joseph Ruef | 26 | Lodger | Assembler | Ohio |
| 32 | Samuel Ricker | 84 | Head | None | Pennsylvania |
| 33 | Percy Hodson | 54 | Son | None | Ohio |
| 34 | Stella Hodson | 47 | Daughter | Machinist | Ohio |
| 35 | Walter Jones | 35 | Head | Machine Adjuster | Ohio |
| 36 | Hulda Jones | 38 | Wife | None | Ohio |
| 37 | Madeline Dietze | 70 | Mother in law | None | New York |
| 38 | Lydia Dietze | 59 | Sister in law | Office Clerk | Ohio |
| 39 | Blythe Cley | 69 | Head | None | Ohio |
| 40 | Herbert Hethler | 63 | Lodger | 40 | Ohio |
Related Census Records
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)