GJ
Grace Johnson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Warren-County, Illinois
Our Model Tree links this Grace Johnson across the 1920, 1930 and 1940 US Censuses in Warren-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1901), then head of a 6-person household.
Age 39
b. ~1901
Female
Spouse
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Warren-County, Illinois |
| Surname | Johnson |
| Given Name | Grace |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Warren |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Lenox |
| Est. Birth Year | ~1901 |
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 Grace | Age | Birth yr |
|---|---|---|---|---|
| Anna Johnson | Daughter | — | 19 | ~1921 |
| Sandra Johnson | Daughter | — | 1 | ~1939 |
| Ralph Johnson | Head | — | 44 | ~1896 |
| William Johnson | Son | — | 13 | ~1927 |
| Donald Johnson | Son | — | 16 | ~1924 |
| Grace Johnson | Spouse | — | 39 | ~1901 |
Census Appearances
1920
Warren, Illinois
Spouse, age 19
Warren, Illinois · implied b. ~1901 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Grace |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Warren, Illinois
Other, age 29
Warren, Illinois · implied b. ~1901 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Grace |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 19 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Warren-County, Illinois
Spouse, age 39
Warren-County, Illinois · implied b. ~1901 — 6 household members
| Surname | Johnson |
| Given Name | Grace |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Warren |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 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 Grace Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Grace Johnson
Spouse · 1940 · age 39 · b. ~1901 · 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 — Warren-County, Illinois
Open full size
1940 US Federal Census — Warren-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00901-00162)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Irena Bartlett | 32 | Wife | — | Iowa |
| 42 | Glen S. Bartlett | 15 | Son | — | Iowa |
| 43 | Robert Bartlett | 15 | Son | — | Iowa |
| 44 | Mary Lou Bartlett | 10 | Daughter | — | Iowa |
| 45 | Paul J. Lee | 26 | Head | Farmer | Illinois |
| 46 | Annabella Lee | 23 | Wife | — | Illinois |
| 47 | Rudolph Payne | 40 | Head | Farmer | Illinois |
| 48 | Elinor Payne | 15 | Daughter | — | Illinois |
| 49 | Mildred Payne | 14 | Daughter | — | Illinois |
| 50 | Earnest Payne | 5 | Son | — | Illinois |
| 51 | Jesse Shawler | 74 | Head | Farmer | Illinois |
| 52 | Berice|Bernice Shawler | 49 | Housekeeper | — | Illinois |
| 53 | Carl Peterson | 66 | Head | Farmer | Sweden |
| 54 | Hulda Peterson | 64 | Wife | — | Sweden |
| 55 | Albert Peterson | 57 | Head | Farmer | Illinois |
| 56 | Ralph Johnson | 44 | Head | Farmer | Illinois |
| 57 | Grace Johnson THIS PERSON | 39 | Wife | — | Illinois |
| 58 | Anna Johnson | 19 | Daughter | — | Illinois |
| 59 | Donald Johnson | 16 | Son | — | Illinois |
| 60 | William Johnson | 13 | Son | — | Illinois |
| 61 | Sandra Johnson | 1 | Daughter | — | Illinois |
| 62 | Alfred Parrish | 32 | Head | Farmer | Illinois |
| 63 | Edna Parrish | 26 | Wife | — | Illinois |
| 64 | Howard Carrier | 47 | Head | Farmer | Illinois |
| 65 | Lola Carrier | 46 | Wife | — | Illinois |
| 66 | Dorothy Carrier | 24 | Daughter | Teacher | Illinois |
| 67 | Robert Carrier | 22 | Son | Roadwork | Illinois |
| 68 | Roberta Carrier | 22 | Daughter | — | Illinois |
| 69 | Richard Carrier | 21 | Son | Farmer | Illinois |
| 70 | Joseph Carrier | 17 | Son | — | Illinois |
| 71 | Kenneth Carrier | 14 | Son | — | Illinois |
| 72 | Lewis Long | 32 | Head | Farmer | Illinois |
| 73 | Frances Long | 25 | Wife | — | Illinois |
| 74 | Clarence Long | 3 | Son | — | Illinois |
| 75 | Lynn Long | 2 | Son | — | Illinois |
| 76 | John Lee | 66 | Head | Farmer | Illinois |
| 77 | Nora Lee | 60 | Wife | — | Illinois |
| 78 | Ralph Lee | 37 | Son | Farm Laborer | Illinois |
| 79 | Edward Lee | 31 | Son | Farm Laborer | Illinois |
| 80 | Elmer Ray | 40 | Head | Farmer | 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)