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Mary Briggs — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Brown-County, Illinois
Our Model Tree links this Mary Briggs across the 1920, 1930 and 1940 US Censuses in Brown-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1872), then head of a 3-person household.
Age 68
b. ~1872
Female
Spouse
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Brown-County, Illinois |
| Surname | Briggs |
| Given Name | Mary |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 68 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Mt Sterling City |
| 1935 Residence (County) | Brown |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Mt Sterling City |
| Est. Birth Year | ~1872 |
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 |
|---|---|---|---|---|
| Mary Briggs | Spouse | — | 68 | ~1872 |
| John Briggs | Head | — | 86 | ~1854 |
| Frances Briggs | Daughter | — | 38 | ~1902 |
Census Appearances
1920
Brown, Illinois
Spouse, age 49
Brown, Illinois · implied b. ~1871 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Briggs |
| Given Name | Mary J. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Ohio |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Brown, Illinois
Spouse, age 58
Brown, Illinois · implied b. ~1872 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Briggs |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 39 |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Brown-County, Illinois
Spouse, age 68
Brown-County, Illinois · implied b. ~1872 — 3 household members
| Surname | Briggs |
| Given Name | Mary |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 68 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Mt Sterling City |
| 1935 Residence (County) | Brown |
| Highest Grade | No 5 |
| 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 Mary Briggs across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Briggs
Spouse · 1940 · age 68 · b. ~1872 · 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 — Brown-County, Illinois
Open full size
1940 US Federal Census — Brown-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00761-00109)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Duane Lane | 7 | son | — | Illinois |
| 42 | Donald Lane | 5 | son | — | Illinois |
| 43 | Sharon Lane | 2 | daughter | — | Illinois |
| 44 | Leonard W Lane | 0 | son | — | Illinois |
| 45 | Henry Carmody | 56 | head | — | Illinois |
| 46 | Lillian Carmody | 52 | wife | — | Illinois |
| 47 | Oscar Parker | 31 | stepson | Practical Nurse | Illinois |
| 48 | Clara Dunbar | 52 | head | Nurse | Illinois |
| 49 | Russell Logsdon | 20 | head | Laborer | Illinois |
| 50 | Edith Logsdon | 16 | wife | — | Missouri |
| 51 | Rose Gaddis | 76 | head | — | Missouri |
| 52 | Pauline Gaddis | 42 | daughter | Sales Lady | Missouri |
| 53 | Charles Gaddis | 27 | son | Helper | Illinois |
| 54 | Pearl Davis | 42 | head | Plumber | Missouri |
| 55 | Olga Davis | 38 | wife | — | Missouri |
| 56 | Carl Davis | 13 | son | — | Missouri |
| 57 | Imogene Davis | 11 | daughter | — | Missouri |
| 58 | End Of Block 1 Of The R. N. Curry Addition No. 3 Beginning Block 2 Of The R. N. Curry Addition No. 3. | None | — | — | — |
| 59 | Ora Lantz | 71 | head | — | Illinois |
| 60 | Eliza Lantz | 67 | wife | — | Ohio |
| 61 | Eli Peacock | 76 | head | — | Illinois |
| 62 | Florence Peacock | 66 | wife | — | Illinois |
| 63 | James Thomas | 75 | head | — | Kentucky |
| 64 | Effie Thomas | 74 | wife | — | Illinois |
| 65 | John Briggs | 86 | head | — | Illinois |
| 66 | Mary Briggs THIS PERSON | 68 | wife | — | Illinois |
| 67 | Frances Briggs | 38 | daughter | — | Illinois |
| 68 | Russell Nieman | 21 | head | Lineman | Illinois |
| 69 | Roberta Nieman | 21 | wife | — | Illinois |
| 70 | Donald Nieman | 1 | son | — | Illinois |
| 71 | Linda Sue Nieman | 0 | daughter | — | Illinois |
| 72 | Grace Evans | 48 | mother | — | Illinois |
| 73 | End Of Block 2 Of The R. N. Curry Addition No. 3 Beginning Block 2 Of The Hickman Addition. | None | — | — | — |
| 74 | Biles Miller | 32 | head | — | Illinois |
| 75 | Vina Miller | 31 | wife | — | Illinois |
| 76 | Dan Carpenter | 45 | head | — | Illinois |
| 77 | Emma Carpenter | 17 | daughter | — | Illinois |
| 78 | End Of Block 2 Of The R. N. Curry Addition No. 3 Beginning Block 4 Of The R. N. Curry Addition No. 4. | None | — | — | — |
| 79 | Merle Cory | 51 | head | Policeman | Illinois |
| 80 | Myrtle Cory | 47 | 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)