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John Mcdowell — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hardin-County, Illinois
Our Model Tree links this John Mcdowell across the 1930 and 1940 US Censuses in Hardin-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1890), then head of a 6-person household.
Age 50
b. ~1890
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Hardin-County, Illinois |
| Surname | McDowell |
| Given Name | John J. O. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Hardin |
| Additional Details | |
| Occupation | laborer |
| Industry | Tree Planting W.P.A. |
| Class of Worker | GW |
| Hours Worked | 30 |
| Income (1939) | 988 |
| Highest Grade | No 6 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Laborer |
| Township / Ward | Battery Rock Precinct |
| 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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Shelly Mcdowell | Son | — | 15 | ~1925 |
| Lowell Mcdowell | Son | — | 12 | ~1928 |
| Kenneth Mcdowell | Son | — | 17 | ~1923 |
| John Mcdowell | Head | — | 50 | ~1890 |
| Etta Mcdowell | Spouse | — | 44 | ~1896 |
| Samuel Mcdowell | Son | — | 19 | ~1921 |
Census Appearances
1930
Hardin, Illinois
Head, age 40
Hardin, Illinois · implied b. ~1890 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDowell |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 20 |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | Laborer |
| Industry | Spar Mines |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 5 |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Hardin-County, Illinois
Head, age 50
Hardin-County, Illinois · implied b. ~1890 — 6 household members
| Surname | McDowell |
| Given Name | John J. O. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Hardin |
| Occupation | laborer |
| Industry | Tree Planting W.P.A. |
| Class of Worker | GW |
| Hours Worked | 30 |
| Income (1939) | 988 |
| Highest Grade | No 6 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Mcdowell across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Mcdowell
Head · 1940 · age 50 · b. ~1890 · 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 — Hardin-County, Illinois
Open full size
1940 US Federal Census — Hardin-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00810-00817)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Clyde O. Yeates | 29 | Head | Miner | Illinois |
| 2 | Elizabeth Yeates | 27 | Wife | — | Illinois |
| 3 | Dora L. Yeates | 10 | Daughter | — | Illinois |
| 4 | Charles C. Yeates | 9 | Son | — | Illinois |
| 5 | Herbert Yeates | 7 | Son | — | Illinois |
| 6 | Lucrecia Yeates | 5 | Daughter | — | Illinois |
| 7 | Harry W. Yeates | 2 | Son | — | Illinois |
| 8 | Alclare Blair | 35 | Head | Laborer | Illinois |
| 9 | Ruby O. Blair | 30 | Wife | — | Illinois |
| 10 | Almetta Blair | 12 | Daughter | — | Illinois |
| 11 | Prentice Blair | 11 | Son | — | Illinois |
| 12 | J. N. Blair | 4 | Son | — | Illinois |
| 13 | Lloyd Vingleton | 44 | Head | Miner | Illinois |
| 14 | Rachael H. Vingleton | 38 | Wife | — | Illinois |
| 15 | J. Herbert Vingleton | 21 | Son | Clerk | Illinois |
| 16 | Fred X. Vingleton | 19 | Son | — | Illinois |
| 17 | Bobby G. Vingleton | 9 | Son | — | Illinois |
| 18 | Charles P. Hall | 67 | Uncle by marriage | — | Illinois |
| 19 | Earon Mcdowell | 26 | Cousin | Laborer | Illinois |
| 20 | Nellie L. O. Cristian | 46 | Head | Dresser | Illinois |
| 21 | Velma L. Cristian | 7 | Daughter | — | Illinois |
| 22 | Eugene Keezi | 23 | Boarder | Laborer | Illinois |
| 23 | George C. Mcdowell | 52 | Head | Research Fill Worker | Illinois |
| 24 | Ethel Mcdowell | 39 | Wife | — | Illinois |
| 25 | Genevieve Mcdowell | 14 | Daughter | — | Illinois |
| 26 | Dennis X. Mcdowell | 5 | Son | — | Illinois |
| 27 | Nana O. Douglas | 62 | Head | Dresser | Illinois |
| 28 | John J. O. Mcdowell THIS PERSON | 50 | Head | Laborer | Illinois |
| 29 | Etta Mcdowell | 44 | Wife | — | Illinois |
| 30 | Samuel Mcdowell | 19 | Son | Farmer | Illinois |
| 31 | Kenneth Mcdowell | 17 | Son | Farmer | Illinois |
| 32 | Shelly Mcdowell | 15 | Son | Farmer | Illinois |
| 33 | Lowell R. Mcdowell | 12 | Son | — | Illinois |
| 34 | Ulys G. O. Bascom | 24 | Head | Farmer | Illinois |
| 35 | Hazelvine Bascom | 26 | Wife | — | Illinois |
| 36 | Billie L. Bascom | 2 | Son | — | Illinois |
| 37 | Grover O. Bascom | 54 | Head | Farmer | Illinois |
| 38 | Lillie Bascom | 53 | Wife | — | Illinois |
| 39 | Bernal H. Bascom | 17 | Son | Farmer | Illinois |
| 40 | Adiel E. Bascom | 15 | 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)