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Myrtle Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Johnson-County, Illinois
Our Model Tree links this Myrtle Thomas across the 1920, 1930 and 1940 US Censuses in Johnson-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1894), then head of a 6-person household.
Age 46
b. ~1894
Female
Spouse
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Johnson-County, Illinois |
| Surname | Thomas |
| Given Name | Myrtle |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Grantsburg Twp |
| 1935 Residence (County) | Johnson |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Grantsburg Twp |
| Est. Birth Year | ~1894 |
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 Myrtle | Age | Birth yr |
|---|---|---|---|---|
| Clyde Jones | Other | — | 22 | ~1918 |
| Myrtle Thomas | Spouse | — | 46 | ~1894 |
| John Doyle | Other | — | 56 | ~1884 |
| Myrtle Thomas | Daughter | — | 15 | ~1925 |
| Donald Thomas | Son | — | 8 | ~1932 |
| Alma Thomas | Head | — | 57 | ~1883 |
Census Appearances
1920
Johnson, Illinois
Spouse, age 28
Johnson, Illinois · implied b. ~1892 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Myrtle |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Johnson, Illinois
Spouse, age 37
Johnson, Illinois · implied b. ~1893 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Myrtle |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 17 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Johnson-County, Illinois
Spouse, age 46
Johnson-County, Illinois · implied b. ~1894 — 6 household members
| Surname | Thomas |
| Given Name | Myrtle |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Grantsburg Twp |
| 1935 Residence (County) | Johnson |
| Highest Grade | No 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 Myrtle Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Myrtle Thomas
Spouse · 1940 · age 46 · b. ~1894 · 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 — Johnson-County, Illinois
Open full size
1940 US Federal Census — Johnson-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00818-00195)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Francis Jr. Witte | 13 | Son | — | Illinois |
| 42 | John E. Smith | 57 | Head | Farm | Illinois |
| 43 | Eva Smith | 52 | Wife | — | Illinois |
| 44 | Dennis Smith | 24 | Son | Farm | Illinois |
| 45 | Robert Stockdale | 51 | Head | Farm | Illinois |
| 46 | Ethel Stockdale | 47 | Wife | — | Tennessee |
| 47 | Edward Stockdale | 18 | Son | Farm | Illinois |
| 48 | Everitt Murrie | 61 | Head | Farm | Illinois |
| 49 | Sarah Murrie | 58 | Wife | — | Illinois |
| 50 | Ezra Murrie | 35 | Son | Farm | Illinois |
| 51 | Chas. Sloan | 52 | Head | Farm | Illinois |
| 52 | Blanche Sloan | 55 | Wife | — | Illinois |
| 53 | Helen Sloan | 18 | Daughter | — | Illinois |
| 54 | Chas. F. Sloan | 16 | Son | — | Illinois |
| 55 | Alma Thomas | 57 | Head | Farm | Illinois |
| 56 | Myrtle Thomas THIS PERSON | 46 | Wife | — | Illinois |
| 57 | Myrtle A. Thomas | 15 | Daughter | — | Illinois |
| 58 | Donald J. Thomas | 8 | Son | — | Illinois |
| 59 | John Doyle | 56 | — | Farm | Alabama |
| 60 | Clyde A. Jones | 22 | — | Farm | Illinois |
| 61 | Mamie Yates | 64 | Head | — | Illinois |
| 62 | Homer Shirley | 20 | Head | General | Illinois |
| 63 | Minnetta Shirley | 17 | Wife | — | Illinois |
| 64 | George F. Whiteside | 26 | Head | Farm | Illinois |
| 65 | Magdalene Whiteside | 25 | Wife | — | Illinois |
| 66 | Wayne F. Whiteside | 1 | Son | — | Illinois |
| 67 | Merritt Howell | 52 | Head | Farm | Illinois |
| 68 | Brooke Howell | 48 | Wife | — | Illinois |
| 69 | Startwell Howell | 25 | Son | Farm | Illinois |
| 70 | Samuel Howell | 22 | Son | Laborer Construction | Illinois |
| 71 | Jennie Howell | 77 | Mother | — | Illinois |
| 72 | Josephine Howell | 20 | Daughter in law | — | Illinois |
| 73 | Joe Startwell Howell | 1 | Grand Son | — | Illinois |
| 74 | Freeman Ruble | 25 | Head | Laborer Road Const | Illinois |
| 75 | Mary J. Ruble | 20 | Wife | — | Missouri |
| 76 | Joe Ann Ruble | 4 | Daughter | — | Illinois |
| 77 | Richard J. Ruble | 2 | Son | — | Illinois |
| 78 | Etta B. Blew | 52 | Head | House Work | Nebraska |
| 79 | J. W. Howell | 39 | Head | House | Illinois |
| 80 | Violet Howell | 35 | 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)