MD
Margaret Donovan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Margaret Donovan across the 1920, 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1880), then head of a 9-person household.
Age 60
b. ~1880
Female
Spouse
Born: Illinois
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Donovan |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | CHICAGO |
| 1935 Residence (County) | COOK |
| Additional Details | |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago |
| Est. Birth Year | ~1880 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Donovan | Spouse | — | 60 | ~1880 |
| Arthur Donovan | Son | — | 36 | ~1904 |
| Robert Donovan | Son | — | 33 | ~1907 |
| John Donovan | Son | — | 23 | ~1917 |
| Jerry Donovan | Head | — | 65 | ~1875 |
| Daniel Donovan | Son | — | 19 | ~1921 |
| William Donovan | Son | — | 16 | ~1924 |
| Gerald Donovan | Son | — | 34 | ~1906 |
| Emmett Donovan | Son | — | 30 | ~1910 |
Census Appearances
1920
Cook, Illinois
Spouse, age 40
Cook, Illinois · implied b. ~1880 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donovan |
| Given Name | Martha |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
Spouse, age 50
Cook, Illinois · implied b. ~1880 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Donovan |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 17 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Spouse, age 60
Cook-County, Illinois · implied b. ~1880 — 9 household members
| Surname | Donovan |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | CHICAGO |
| 1935 Residence (County) | COOK |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| 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 Margaret Donovan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Donovan
Spouse · 1940 · age 60 · b. ~1880 · 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 — Cook-County, Illinois
Open full size
1940 US Federal Census — Cook-County, Illinois
Page Contents
37 people indexed on this census page (nara:1940:m-t0627-00959-00658)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jerry Donovan | 65 | Head | — | Irish Free State |
| 2 | Margaret Donovan THIS PERSON | 60 | Wife | — | Illinois |
| 3 | Arthur Donovan | 36 | Son | Office President | Illinois |
| 4 | Gerald Donovan | 34 | Son | Asst. Stationary Engineer | Illinois |
| 5 | Robert Donovan | 33 | Son | Chauffeur | Illinois |
| 6 | Emmett Donovan | 30 | Son | Boiler Maker | Illinois |
| 7 | John Donovan | 23 | Son | — | Illinois |
| 8 | Daniel Donovan | 19 | Son | — | Illinois |
| 9 | William Donovan | 16 | Son | — | Illinois |
| 12 | Edward C Singler | 50 | Head | Executive | Illinois |
| 13 | Evelyn C Singler | 39 | Wife | — | Illinois |
| 14 | Sally Ann Singler | 10 | Daughter | — | Illinois |
| 15 | Dorothy Singler | 8 | Daughter | — | Illinois |
| 16 | Kathryn Mckinney | 18 | Servant | Servant | Indiana |
| 17 | Alexander Rogers | 40 | Head | Sales Manager | Illinois |
| 18 | Marguerite Rogers | 39 | Wife | — | Illinois |
| 19 | Joe Rogers | 15 | Son | — | Illinois |
| 20 | Richard Rogers | 7 | Son | — | Illinois |
| 21 | William E Eyler | 41 | Head | Plant Supt. | Kansas |
| 22 | Doris Eyler | 38 | Wife | — | Nebraska |
| 23 | William Jr. Eyler | 6 | Son | — | Indiana |
| 24 | Beverly Eyler | 4 | Daughter | — | Indiana |
| 25 | Leona Douma | 19 | Servant | Servant | So. Dakota |
| 26 | Mervyn Phillips | 41 | Head | Chemist | Illinois |
| 27 | Magdalin Phillips | 37 | Wife | — | Kentucky |
| 28 | Franklin M Phillips | 11 | Son | — | Illinois |
| 29 | Mervyn C. Jr. Phillips | 6 | Son | — | Illinois |
| 30 | Royal M Phillips | 2 | Daughter | — | Illinois |
| 31 | Glover Chapman | 42 | Servant | Servant | Georgia |
| 32 | Cora Chapman | 42 | Servant | Servant | Georgia |
| 33 | Gray B Tuthill | 38 | Head | Executive | Illinois |
| 34 | Natlin Tuthill | 38 | Wife | — | Illinois |
| 35 | James G Tuthill | 13 | Son | — | Illinois |
| 36 | Natlin Joan Tuthill | 10 | Daughter | — | Illinois |
| 37 | Gray B. Jr Tuthill | 6 | Son | — | Illinois |
| 38 | Elizabeth Hesselgrave | 55 | Nurse | Nurse | Missouri |
| 39 | Roxie Wilton | 40 | Servant | Servant | Georgia |
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)