MD
Mary Dooley — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Mary Dooley across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1900), then head of a 5-person household.
Age 40
b. ~1900
Female
Spouse
Born: Kentucky
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Dooley |
| Given Name | Mary |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | Black |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | Chicago |
| Est. Birth Year | ~1900 |
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 |
|---|---|---|---|---|
| Robert Dooley | Head | — | 38 | ~1902 |
| Serenia Dooley | Daughter | — | 19 | ~1921 |
| William Dooley | Son | — | 21 | ~1919 |
| Helen Dooley | Daughter | — | 23 | ~1917 |
| Mary Dooley | Spouse | — | 40 | ~1900 |
Census Appearances
1930
Cook, Illinois
Spouse, age 29
Cook, Illinois · implied b. ~1901 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dooley |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 29 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Age at First Marriage | 17 |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Cook-County, Illinois
Spouse, age 40
Cook-County, Illinois · implied b. ~1900 — 5 household members
| Surname | Dooley |
| Given Name | Mary |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | Black |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
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
Spouse · 1940 · age 40 · b. ~1900 · 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 — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00922-00540)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | John Smith | 21 | son | New Worker | Arkansas |
| 42 | Harvey Cannon | 3 | Grandson | — | Illinois |
| 43 | Newman Carter | 28 | Head | Decorator | Georgia |
| 44 | William Carter | 30 | Brother | Box Maker | Georgia |
| 45 | Bert Carter | 26 | Brother | Decorator'S Helper | Georgia |
| 46 | Carrie Harris | 35 | Head | — | Arkansas |
| 47 | Leona Harris | 18 | Daughter | — | Arkansas |
| 48 | Johnnie Harris | 16 | son | — | Arkansas |
| 49 | Jessie Brown | 35 | Head | Hemmer | Mississippi |
| 50 | Florence Bonner | 54 | Head | Cook | Louisiana |
| 51 | Susie Vernon | 48 | lodger | File Clerk | Tennessee |
| 52 | Bert Valentine | 70 | Head | — | Illinois |
| 53 | Freeman Gage | 38 | Head | Asphalt Raker | Mississippi |
| 54 | Violet Gage | 36 | wife | — | Arkansas |
| 55 | Freeman, Jr. Gage | 15 | son | — | Illinois |
| 56 | John M. Gage | 7 | son | — | Illinois |
| 57 | Rachael Miller | 66 | mother-in-law | — | Arkansas |
| 58 | John Miller | 49 | brother-in-law | Carpenter | Arkansas |
| 59 | William Mccurdy | 75 | lodger | — | Louisiana |
| 60 | Jean Smith | 20 | lodger | — | Illinois |
| 61 | Langston Smith | 2 | lodger's son | — | Illinois |
| 62 | Harry Hill | 44 | Head | Laborer | Mississippi |
| 63 | Marietta Hill | 21 | Daughter | Seamstress | Mississippi |
| 64 | Jean Hill | 15 | Daughter | — | Illinois |
| 65 | Althea Hill | 12 | Daughter | — | Illinois |
| 66 | Harry King | 3 | Grandson | — | Illinois |
| 67 | Columbus Westbrooks | 40 | Head | Butcher | Mississippi |
| 68 | Emma Westbrooks | 31 | wife | — | Mississippi |
| 69 | Reola Westbrooks | 16 | daughter | — | Mississippi |
| 70 | Sarah Westbrooks | 60 | mother | — | Mississippi |
| 71 | Margaret Carr | 41 | sister-in-law | Wreath Maker | Mississippi |
| 72 | Elzy Parker | 22 | Granddaughter | Wreath Maker | Mississippi |
| 73 | Obie Washington | 26 | lodger | Upholsterer | Arkansas |
| 74 | Clifford Cannon | 16 | lodger | — | Missouri |
| 75 | John Hadley | 19 | lodger | Laborer | Mississippi |
| 76 | Robert Dooley | 38 | Head | — | Kentucky |
| 77 | Mary Dooley THIS PERSON | 40 | wife | — | Kentucky |
| 78 | Helen Dooley | 23 | Daughter | Typist | Kentucky |
| 79 | William Dooley | 21 | son | — | Kentucky |
| 80 | Serenia Dooley | 19 | daughter | — | Kentucky |
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)