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Mary Butler — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Champaign-County, Illinois
Our Model Tree links this Mary Butler across the 1920, 1930 and 1940 US Censuses in Champaign-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1896), then head of a 4-person household.
Age 44
b. ~1896
Female
Spouse
Born: Indiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Champaign-County, Illinois |
| Surname | Butler |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Urbana |
| 1935 Residence (County) | Champaign |
| Additional Details | |
| Industry | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Urbana |
| Est. Birth Year | ~1896 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Butler | Daughter | — | 23 | ~1917 |
| Paul Butler | Head | — | 48 | ~1892 |
| Richard Butler | Son | — | 15 | ~1925 |
| Mary Butler | Spouse | — | 44 | ~1896 |
Census Appearances
1920
Champaign, Illinois
Spouse, age 22
Champaign, Illinois · implied b. ~1898 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Butler |
| Given Name | May |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Married |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Champaign, Illinois
Spouse, age 33
Champaign, Illinois · implied b. ~1897 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Butler |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Indiana |
| Age at First Marriage | 19 |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Champaign-County, Illinois
Spouse, age 44
Champaign-County, Illinois · implied b. ~1896 — 4 household members
| Surname | Butler |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Urbana |
| 1935 Residence (County) | Champaign |
| Industry | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 Mary Butler across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Butler
Spouse · 1940 · age 44 · b. ~1896 · 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 — Champaign-County, Illinois
Open full size
1940 US Federal Census — Champaign-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00766-00129)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Virginia S Hart | 60 | Wife | — | Iowa |
| 42 | Ray Hart | 19 | Son | — | Illinois |
| 43 | Louise Hart | 16 | Daughter | — | Illinois |
| 44 | Louis Menges | 24 | Head | Baker | Illinois |
| 45 | Lucile S Menges | 23 | Wife | — | Illinois |
| 46 | Barbara Jean Menges | 5 | Daughter | — | Illinois |
| 47 | Florence Tyson | 49 | Head | — | Illinois |
| 48 | Esther Tyson | 24 | Daughter | Housework | Illinois |
| 49 | Howard Tyson | 17 | Son | New Worker | Illinois |
| 50 | Fredrick Tyson | 15 | Son | — | Illinois |
| 51 | Betty Jean Tyson | 9 | Daughter | — | Illinois |
| 52 | Delbert Foster | 35 | Head | Laborer | Illinois |
| 53 | Ann S Foster | 29 | Wife | — | Illinois |
| 54 | Donald Ray Foster | 0 | Son | — | Illinois |
| 55 | Charles Miller | 44 | Head | Barber | Indiana |
| 56 | Purdia Miller | 38 | Wife | — | Illinois |
| 57 | Eileen Miller | 14 | Daughter | — | Illinois |
| 58 | Charles Jr Miller | 10 | Son | — | Illinois |
| 59 | Thomas E Moore | 39 | Head | Carpenter | Illinois |
| 60 | Mildred Moore | 37 | Wife | — | Illinois |
| 61 | Thomas O Moore | 16 | Son | — | Illinois |
| 62 | Betty G Moore | 14 | Daughter | — | Illinois |
| 63 | Paul Butler | 48 | Head | Laborer | Illinois |
| 64 | Mary Butler THIS PERSON | 44 | Wife | — | Indiana |
| 65 | Mary Louise Butler | 23 | Daughter | Helper In Office | Illinois |
| 66 | Richard Butler | 15 | Son | — | Colorado |
| 67 | Clarett J Hardin | 43 | Head | Housework | Illinois |
| 68 | Henry Hardin | 25 | Son | Driver - Taxi | Illinois |
| 69 | Mary Jane Hardin | 16 | Daughter | — | Illinois |
| 70 | Mabel Lee Hardin | 15 | Daughter | — | Illinois |
| 71 | Doris Jane Hardin | 13 | Daughter | — | Illinois |
| 72 | Rachael Mason | 23 | Head | — | — |
| 73 | Morris E Palmer | 46 | Head | General Agent | Illinois |
| 74 | Marian Palmer | 36 | Wife | — | Illinois |
| 75 | John Mcintosh | 74 | Uncle | — | Illinois |
| 76 | Robert Innis | 72 | Head | — | Illinois |
| 77 | Catherine Innis | 70 | Wife | — | Illinois |
| 78 | Oscar Innis | 51 | Son | — | Illinois |
| 79 | Edward L Murdock | 68 | Head | Clerk | Ohio |
| 80 | Ethel Murdock | 66 | 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)