JC
John Curtis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mcdonough-County, Illinois
Our Model Tree links this John Curtis across the 1920, 1930 and 1940 US Censuses in Mcdonough-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1880), then head of a 5-person household.
Age 60
b. ~1880
Male
Head
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Mcdonough-County, Illinois |
| Surname | Curtis |
| Given Name | John L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Bethel Twp. |
| 1935 Residence (County) | McDonough |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | S 8 |
| 1935 Residence | Same Place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Farmer |
| Township / Ward | Bethel Twp |
| Est. Birth Year | ~1880 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Nellie Curtis | Daughter | — | 30 | ~1910 |
| John Curtis | Head | — | 60 | ~1880 |
| Hattie Davidson | Other | — | 66 | ~1874 |
| Vilas Curtis | Son | — | 31 | ~1909 |
| Nannie Curtis | Spouse | — | 63 | ~1877 |
Census Appearances
1920
Mcdonough, Illinois
Head, age 40
Mcdonough, Illinois · implied b. ~1880 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Curtis |
| Given Name | John L. |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Pennsylvania |
| Occupation | Farmer |
| Industry | General farm |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Mcdonough, Illinois
Head, age 50
Mcdonough, Illinois · implied b. ~1880 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Curtis |
| Given Name | John L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 25 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Pennsylvania |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 30,000 |
| Radio Set | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Mcdonough-County, Illinois
Head, age 60
Mcdonough-County, Illinois · implied b. ~1880 — 5 household members
| Surname | Curtis |
| Given Name | John L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Bethel Twp. |
| 1935 Residence (County) | McDonough |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | S 8 |
| 1935 Residence | Same Place |
| 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 Curtis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Curtis
Head · 1940 · age 60 · b. ~1880 · Illinois
★ 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 — Mcdonough-County, Illinois
Open full size
1940 US Federal Census — Mcdonough-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00839-00013)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Bettie Carnahan | 10 | Son | — | Illinois |
| 2 | Bobbie Carnahan | 8 | Son | — | Illinois |
| 3 | John L. Curtis THIS PERSON | 60 | Head | Farmer | Illinois |
| 4 | Nannie Curtis | 63 | Wife | — | Illinois |
| 5 | Vilas Curtis | 31 | Son | Farmer | Illinois |
| 6 | Nellie A. Curtis | 30 | Daughter | — | Illinois |
| 7 | Hattie G. Davidson | 66 | Lodger | — | Illinois |
| 8 | William A. Clark | 81 | Head | Farmer | Ohio |
| 9 | Harriett M. Clark | 76 | Wife | — | Illinois |
| 10 | Clarence C. Bainter | 39 | Son in law | Farm Labor | Illinois |
| 11 | Opal M. Bainter | 41 | Daughter | — | Kansas |
| 12 | Jerry Cavett | 50 | Head | Farmer | Illinois |
| 13 | Rebecca Cavett | 41 | Sister | — | Illinois |
| 14 | Leroy W. Robinson | 58 | Head | Farmer | Illinois |
| 15 | Julia M. Robinson | 51 | Wife | — | Illinois |
| 16 | Clinton W. Robinson | 20 | Son | Farm Labor | Illinois |
| 17 | James D. Robinson | 15 | Son | Farm Labor | Illinois |
| 18 | Lyle A. Griffith | 46 | Head | Farmer | Illinois |
| 19 | Sadie Griffith | 48 | Wife | — | Illinois |
| 20 | Guy Bible | 47 | Head | Farmer | Illinois |
| 21 | Blanche Bible | 45 | Wife | — | Illinois |
| 22 | Willie Paul Bible | 21 | Son | Farm Labor | Illinois |
| 23 | Eulila Bible | 70 | Head | — | Illinois |
| 24 | Fred R. Clark | 59 | Head | Farmer | Illinois |
| 25 | Delma E. Clark | 59 | Wife | — | Illinois |
| 26 | A. G. Eaton | 67 | Head | Farmer | Indiana |
| 27 | Anna Eaton | 62 | Wife | — | Indiana |
| 28 | L. T. Baker | 56 | Head | Farmer | Illinois |
| 29 | Ruth Foster | 45 | Sister | — | Illinois |
| 30 | Elmer Miller | 57 | Head | Miner | Illinois |
| 31 | Allie A. Miller | 54 | Wife | — | Illinois |
| 32 | Victor S. Black | 52 | Head | Farmer | Illinois |
| 33 | Frank S. Garnsey | 59 | Head | Farmer | Illinois |
| 34 | Bessie Garnsey | 59 | Wife | — | Illinois |
| 35 | Alvin Garnsey | 18 | Son | Farm Labor | Illinois |
| 36 | Glen Vogler | 9 | Grandson | — | Illinois |
| 37 | George Bogard | 66 | Head | Farmer | Illinois |
| 38 | Bell Bogard | 60 | Wife | — | Illinois |
| 39 | Ross Robinson | 40 | Head | Farmer | Illinois |
| 40 | Lola Robinson | 28 | Wife | — | 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)