MD
Mary Dooley — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jefferson-County, Illinois
Our Model Tree links this Mary Dooley across the 1930 and 1940 US Censuses in Jefferson-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 5-person household.
Age 14
b. ~1926
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Illinois |
| Surname | Dooley |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Moores Prairie Twp. |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Moores Prairie Twp |
| Est. Birth Year | ~1926 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Martha Dooley | Daughter | — | 15 | ~1925 |
| Charles Lowery | Son | — | 20 | ~1920 |
| Mary Dooley | Daughter | — | 14 | ~1926 |
| Alma Dooley | Head | — | 47 | ~1893 |
| Marjorie Dooley | Daughter | — | 9 | ~1931 |
Census Appearances
1930
Jefferson, Illinois
Daughter, age 4
Jefferson, Illinois · implied b. ~1926 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dooley |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Jefferson-County, Illinois
Daughter, age 14
Jefferson-County, Illinois · implied b. ~1926 — 5 household members
| Surname | Dooley |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Moores Prairie Twp. |
| 1935 Residence (County) | Jefferson |
| Highest Grade | No 6 |
| 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 Dooley across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Dooley
Daughter · 1940 · age 14 · b. ~1926 · Illinois
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Sibling
Martha Dooley
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Lowery
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marjorie Dooley
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Jefferson-County, Illinois
Open full size
1940 US Federal Census — Jefferson-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00816-00278)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Hubert Summers | 32 | Head | Miner | Illinois |
| 2 | Ada Summers | 23 | Wife | — | Illinois |
| 3 | Laymon Summers | 17 | Son | — | Illinois |
| 4 | Bettie Lou Summers | 14 | Daughter | — | Illinois |
| 5 | Ada Faye Summers | 10 | Daughter | — | Illinois |
| 6 | Franklin Birkhead | 23 | Head | Farmer | Illinois |
| 7 | Mary Birkhead | 25 | Wife | — | Illinois |
| 8 | Irene Birkhead | 4 | Daughter | — | Illinois |
| 9 | Francis Birkhead | 2 | Daughter | — | Illinois |
| 10 | Veara Lou Birkhead | 0 | Daughter | — | Illinois |
| 11 | Alma Dooley | 47 | Head | — | Illinois |
| 12 | Charles Lowery | 20 | Son | Labor | Illinois |
| 13 | Martha Dooley | 15 | Daughter | — | Illinois |
| 14 | Mary Dooley THIS PERSON | 14 | Daughter | — | Illinois |
| 15 | Marjorie Dooley | 9 | Daughter | — | Illinois |
| 16 | Ed Mccoy | 30 | Head | Farmer | Illinois |
| 17 | Eva Mccoy | 35 | Wife | Farmer | Illinois |
| 18 | Lyle Mccoy | 32 | Head | Farmer | Illinois |
| 19 | Beatrice Mccoy | 28 | Wife | — | Illinois |
| 20 | Dora Mccoy | 6 | Daughter | — | Illinois |
| 21 | Margaret Mccoy | 5 | Daughter | — | Illinois |
| 22 | Earl Edward Mccoy | 2 | Son | — | Illinois |
| 23 | Raleigh Duckworth | 53 | Head | Farmer | Illinois |
| 24 | Eva Duckworth | 53 | Wife | — | Illinois |
| 25 | Fred Duckworth | 24 | Son | Farmer | Illinois |
| 26 | Loretta Duckworth | 22 | Daughter | — | Illinois |
| 27 | William R. Duckworth | 20 | Son | Farmer | Illinois |
| 28 | Ross Evans | 31 | Boarder | Labor | Illinois |
| 29 | Helen Evans | 28 | Daughter | — | Illinois |
| 30 | Charles Evans | 8 | Grandson | — | Illinois |
| 31 | Eva Marie Evans | 6 | Granddaughter | — | Illinois |
| 32 | Gwendolyn Evans | 2 | Granddaughter | — | Illinois |
| 33 | Birchel Page | 31 | Head | Farmer | Illinois |
| 34 | Ruby Page | 34 | Wife | — | Illinois |
| 35 | Ruth Page | 12 | Daughter | — | Illinois |
| 36 | Howard Richardson | 37 | Head | Teaching | Illinois |
| 37 | Eva Richardson | 31 | Wife | — | Illinois |
| 38 | Kathryn Richardson | 9 | Daughter | — | Illinois |
| 39 | Abbie Phillips | 72 | Mother-in-law | — | Illinois |
| 40 | Henry Resch | 24 | Head | Labor | 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)