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Mary Bradley — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Sangamon-County, Illinois
Our Model Tree links this Mary Bradley across the 1920, 1930 and 1940 US Censuses in Sangamon-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1858), then head of a 3-person household.
Age 82
b. ~1858
Female
Spouse
Born: Australia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Sangamon-County, Illinois |
| Surname | Bradley |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 82 |
| Marital Status | Married |
| Birthplace | Australia |
| 1935 Residence (City) | Illiopolis town |
| 1935 Residence (County) | Sangamon |
| Naturalization Status | Naturalized |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birthplace (normalized) | australia |
| Township / Ward | Illiopolis Town |
| Est. Birth Year | ~1858 |
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 |
|---|---|---|---|---|
| Alice Bradley | Daughter | — | 54 | ~1886 |
| William Bradley | Head | — | 87 | ~1853 |
| Mary Bradley | Spouse | — | 82 | ~1858 |
Census Appearances
1920
Sangamon, Illinois
Spouse, age 60
Sangamon, Illinois · implied b. ~1860 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bradly |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Australia |
| Father's Birthplace | Australia |
| Mother's Birthplace | Scotland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Year of Naturalization | 1880 |
| Birthplace (normalized) | australia |
1930
Sangamon, Illinois
Spouse, age 71
Sangamon, Illinois · implied b. ~1859 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bradley |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 71 |
| Marital Status | Married |
| Birthplace | Australia |
| Naturalization Status | Naturalized |
| Year of Immigration | 1868 |
| Age at First Marriage | 21 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | England |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birthplace (normalized) | australia |
1940
Sangamon-County, Illinois
Spouse, age 82
Sangamon-County, Illinois · implied b. ~1858 — 3 household members
| Surname | Bradley |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 82 |
| Marital Status | Married |
| Birthplace | Australia |
| 1935 Residence (City) | Illiopolis town |
| 1935 Residence (County) | Sangamon |
| Naturalization Status | Naturalized |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birthplace (normalized) | australia |
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.
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This person
Anchor record
Mary Bradley
Spouse · 1940 · age 82 · b. ~1858 · 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 — Sangamon-County, Illinois
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1940 US Federal Census — Sangamon-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00887-00362)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | W. W. Runaman | 56 | Head | Minister | Canada-English |
| 2 | Stephie Runaman | 56 | Wife | — | England |
| 3 | Margaret Runaman | 19 | Daughter | — | Iowa |
| 4 | Ronald A. Runaman | 18 | Son | — | Iowa |
| 5 | Evelyn Grubbs | 30 | Lodger | Nurse | Colorado |
| 6 | Harry Parks | 50 | Head | Principal | Illinois |
| 7 | Fern Parks | 47 | Wife | Teacher | Illinois |
| 8 | Harry Jr. Parks | 21 | Son | — | Illinois |
| 9 | Bessie Hunter | 60 | Head | Dressmaker | Illinois |
| 10 | William H. Bradley | 87 | Head | — | Illinois |
| 11 | Mary Bradley THIS PERSON | 82 | Wife | — | Australia |
| 12 | Alice Bradley | 54 | Daughter | — | Illinois |
| 13 | Sarah Vandever | 55 | Head | Housework | Illinois |
| 14 | Lowell Clendenin | 49 | Head | Asst. Conservator | Illinois |
| 15 | Mary Clendenin | 38 | Wife | — | Illinois |
| 16 | Ida Ruth Clendenin | 10 | Daughter | — | Illinois |
| 17 | Herbert Clendenin | 8 | Son | — | Illinois |
| 18 | Harry Warner | 64 | Head | — | Illinois |
| 19 | Eva Warner | 61 | Wife | — | Illinois |
| 20 | Alta Peters | 66 | Head | — | Kansas |
| 21 | Theodore Y. Bruce | 31 | Head | Manager | Illinois |
| 22 | Ruth Bruce | 30 | Wife | — | Illinois |
| 23 | Elinor A. Bruce | 2 | Daughter | — | Illinois |
| 24 | Lorenzo Vail | 53 | Lodger | School Teacher | Illinois |
| 25 | Arthur Bessac | 71 | Head | Carpenter | Illinois |
| 26 | Anna Bessac | 46 | Wife | Nurse | Illinois |
| 27 | Lawrence Montgomery | 28 | Head | Greensman | Illinois |
| 28 | Ellen Montgomery | 25 | Wife | — | Illinois |
| 29 | Larry Lee Montgomery | 3 | Son | — | Illinois |
| 30 | Sandra Sue Montgomery | 1 | Daughter | — | Illinois |
| 31 | Nannie Shephard | 69 | Head | — | Illinois |
| 32 | Edith Shephard | 68 | Sister | Dressmaking | Illinois |
| 33 | Tracy D. Brubaker | 83 | Head | — | Ohio |
| 34 | Surgis Peters | 87 | Head | — | Indiana |
| 35 | Phillip Fortner | 63 | Partner | — | Illinois |
| 36 | Ellen Fortner | 56 | Partner | — | Illinois |
| 37 | Eugene Woodward | 54 | Head | Proprietor | Illinois |
| 38 | Ethel Woodward | 56 | Wife | Clerk | Nebraska |
| 39 | Susan Blakeman | 81 | Head | — | Ohio |
| 40 | Emma Blakeman | 74 | Wife | — | Ohio |
Related Census Records
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)