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Mary Bradley — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Champaign-County, Illinois
Our Model Tree links this Mary Bradley across the 1920, 1930 and 1940 US Censuses in Champaign-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1887), then head of a 3-person household.
Age 53
b. ~1887
Female
Spouse
Born: Indiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Champaign-County, Illinois |
| Surname | Bradley |
| Given Name | Mary M. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Ogden village |
| 1935 Residence (County) | Champaign |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Ogden Village |
| Est. Birth Year | ~1887 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Edward Bradley | Head | — | 58 | ~1882 |
| Bobby Bradley | Son | — | 16 | ~1924 |
| Mary Bradley | Spouse | — | 53 | ~1887 |
Census Appearances
1920
Champaign, Illinois
Spouse, age 33
Champaign, Illinois · implied b. ~1887 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bradley |
| Given Name | Mary A |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Champaign, Illinois
Other, age 43
Champaign, Illinois · implied b. ~1887 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bradley |
| Given Name | Mary |
| Relationship to Head | wife-H |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Indiana |
| Age at First Marriage | 17 |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Champaign-County, Illinois
Spouse, age 53
Champaign-County, Illinois · implied b. ~1887 — 3 household members
| Surname | Bradley |
| Given Name | Mary M. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Ogden village |
| 1935 Residence (County) | Champaign |
| Class of Worker | 0 |
| Highest Grade | No 7 |
| 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 Bradley across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Bradley
Spouse · 1940 · age 53 · b. ~1887 · 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-t0627-00766-00433)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward Bradley | 58 | Head | Trucker | Indiana |
| 2 | Mary M. Bradley THIS PERSON | 53 | Wife | — | Indiana |
| 3 | Bobby W. Bradley | 16 | Son | — | Illinois |
| 4 | Sara J. Hill | 70 | Head | — | Illinois |
| 5 | Charles Wright | 65 | Lodger | Laborer | Illinois |
| 6 | Amy L. Wright | 63 | Lodger | — | Illinois |
| 7 | William Sussenbach | 41 | Head | Trucker | Illinois |
| 8 | Beatrice L. Sussenbach | 42 | Wife | — | Illinois |
| 9 | Calvin R. Armstrong | 30 | Head | Farmer | Illinois |
| 10 | Helen E. Armstrong | 31 | Wife | — | Illinois |
| 11 | Lona J. Armstrong | 4 | Daughter | — | Illinois |
| 12 | Ray A. Richardson | 44 | Head | Trucker | Illinois |
| 13 | Mattie S. Richardson | 40 | Wife | — | Illinois |
| 14 | Leona R. Richardson | 19 | Daughter | — | Illinois |
| 15 | Andy Sussenbach | 71 | Head | — | Indiana |
| 16 | Anna S. Sussenbach | 71 | Wife | — | Indiana |
| 17 | Grace Mary Sussenbach | 75 | Sister in law | — | Indiana |
| 18 | Charles W. Denhart | 52 | Head | Trucker | Indiana |
| 19 | Mary G. Denhart | 45 | Wife | — | Indiana |
| 20 | Helen C. Denhart | 11 | Daughter | — | Illinois |
| 21 | Shirley J. Denhart | 5 | Daughter | — | Illinois |
| 22 | George Denhart | 80 | Father | — | Indiana |
| 23 | Maggie L. Saddler | 75 | Head | — | Illinois |
| 24 | Owen J. Richards | 28 | Head | Farm Laborer | Illinois |
| 25 | Margaret Richards | 21 | Wife | — | Scotland |
| 26 | Owen J. Richards | 3 | Son | — | Illinois |
| 27 | James Nonnemacher | 48 | Head | Laborer | Illinois |
| 28 | Bert Henry | 46 | Lodger | Decorator | Indiana |
| 29 | Donald W. Amsler | 26 | Head | Minister | Pennsylvania |
| 30 | Elizabeth M. Amsler | 29 | Wife | — | Illinois |
| 31 | Donald S. Amsler | 2 | Son | — | Illinois |
| 32 | William F. Paul | 29 | Head | Salesman | Illinois |
| 33 | Ava O. Paul | 25 | Wife | Stenographer | Illinois |
| 34 | Fred L. Berdin | 64 | Head | — | Illinois |
| 35 | Margaret H. Berdin | 61 | Wife | — | Illinois |
| 36 | Amile J. Berdin | 39 | Son | — | Illinois |
| 37 | Dale D. Steenbergen | 27 | Head | Attendant | Illinois |
| 38 | Carmen P. Steenbergen | 25 | Wife | — | Illinois |
| 39 | Sonja L. Steenbergen | 2 | Daughter | — | Illinois |
| 40 | Elmo W. Bradley | 26 | Head | Folder | 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)