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John Dempsey — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Gallatin-County, Illinois
Our Model Tree links this John Dempsey across the 1910, 1920, 1930 and 1940 US Censuses in Gallatin-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1866), then head of a 6-person household.
Age 74
b. ~1866
Male
Head
Born: Kentucky
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Gallatin-County, Illinois |
| Surname | Dempsey |
| Given Name | John P. |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 74 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | North Fork township |
| 1935 Residence (County) | Gallatin |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 30 |
| Income (1939) | 0 |
| Highest Grade | No 0 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Farmer |
| Township / Ward | North Fork Township |
| Est. Birth Year | ~1866 |
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 |
|---|---|---|---|---|
| Fannie Dempsey | Spouse | — | 67 | ~1873 |
| Audrey Dempsey | Daughter | — | 21 | ~1919 |
| Floyd Dempsey | Son | — | 33 | ~1907 |
| Murrell Dempsey | Other | — | 23 | ~1917 |
| John Fowler | Other | — | 16 | ~1924 |
| John Dempsey | Head | — | 74 | ~1866 |
Census Appearances
1910
Gallatin, Illinois
Head, age 45
Gallatin, Illinois · implied b. ~1865 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dempsey |
| Given Name | Joseph E |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Years Married | 17 |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | Farmer |
| Industry | General Farm |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1920
Gallatin, Illinois
Head, age 54
Gallatin, Illinois · implied b. ~1866 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dempsey |
| Given Name | Joseph E |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | M |
| Birth State | Kentucky |
| Birth Country | United States |
| Year of Naturalization | O |
| Birthplace (normalized) | kentucky |
1930
Gallatin, Illinois
Head, age 65
Gallatin, Illinois · implied b. ~1865 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dempsey |
| Given Name | John P. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 65 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Age at First Marriage | 27 |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | Farmer |
| Industry | Gen Farm |
| Class of Worker | VVVV |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 5 |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Gallatin-County, Illinois
Head, age 74
Gallatin-County, Illinois · implied b. ~1866 — 6 household members
| Surname | Dempsey |
| Given Name | John P. |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 74 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | North Fork township |
| 1935 Residence (County) | Gallatin |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 30 |
| Income (1939) | 0 |
| Highest Grade | No 0 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
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 Dempsey across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Dempsey
Head · 1940 · age 74 · b. ~1866 · Illinois
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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 — Gallatin-County, Illinois
Open full size
1940 US Federal Census — Gallatin-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00807-00216)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Laura Tuckebacker | 33 | wife | — | Illinois |
| 2 | Bernadine Tuckebacker | 11 | daughter | — | Indiana |
| 3 | Shirley Tuckebacker | 8 | daughter | — | Illinois |
| 4 | John P. Dempsey THIS PERSON | 74 | head | Farmer | Kentucky |
| 5 | Fannie Dempsey | 67 | wife | — | Illinois |
| 6 | Floyd Dempsey | 33 | son | Farmer | Illinois |
| 7 | Murrell Dempsey | 23 | son-in-law | — | Illinois |
| 8 | Audrey Dempsey | 21 | daughter | — | Illinois |
| 9 | John R. Fowler | 16 | lodger | Laborer | Illinois |
| 10 | Lawrence Welch | 44 | head | Farmer | Illinois |
| 11 | Alyne Welch | 35 | wife | — | Illinois |
| 12 | Willie Welch | 14 | son | Farmer | Illinois |
| 13 | Emma Lou Welch | 10 | daughter | — | Illinois |
| 14 | Raymond Welch | 4 | son | — | Illinois |
| 15 | Joy Rodger | 43 | head | Farmer | Illinois |
| 16 | Silas Lee Rodger | 18 | son | Farmer | Illinois |
| 17 | Grace Rodger | 65 | mother | — | Illinois |
| 18 | Isaac Landers | 55 | head | Farmer | Illinois |
| 19 | Bertha Landers | 50 | wife | — | Illinois |
| 20 | Louis Mitchell | 28 | head | Farmer | Illinois |
| 21 | Elsa Mitchell | 23 | wife | — | Illinois |
| 22 | Carrol Jean Mitchell | 5 | daughter | — | Illinois |
| 23 | Marian J. Mitchell | 1 | daughter | — | Illinois |
| 24 | Will Ramsey | 75 | head | Farmer | Indiana |
| 25 | Edna Ramsey | 48 | wife | — | Illinois |
| 26 | Kathleen Ramsey | 16 | daughter | — | Illinois |
| 27 | Charlie Ramsey | 72 | head | Farmer | Indiana |
| 28 | Paul D. Ramsey | 44 | head | Farmer | Illinois |
| 29 | Harriet Ramsey | 35 | wife | — | Illinois |
| 30 | David Ramsey | 12 | son | — | Illinois |
| 31 | Frank Ramsey | 8 | son | — | Illinois |
| 32 | Ben Stallings | 50 | head | Farmer | Illinois |
| 33 | Ella Stallings | 49 | wife | — | Illinois |
| 34 | Albert Stallings | 14 | son | — | Illinois |
| 35 | John Stallings | 10 | son | — | Illinois |
| 36 | Hubert Kimbro | 27 | head | Laborer | Illinois |
| 37 | Laura Kimbro | 21 | wife | — | Illinois |
| 38 | John Campbell | 24 | head | Laborer | Illinois |
| 39 | Ruby Campbell | 18 | wife | — | Illinois |
| 40 | Earl Campbell | 2 | son | — | Illinois |
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)