MD
Mary Donovan — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Mary Donovan across the 1920, 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a spouse (b.~1880), then head of a 4-person household.
Age 50
b. ~1880
Female
Spouse
Born: Illinois
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| 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 |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| 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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Alice Donovan | Daughter | — | 29 | ~1901 |
| Patrick Donovan | Head | — | 55 | ~1875 |
| Howard Donovan | Son | — | 15 | ~1915 |
| Mary Donovan | Spouse | — | 50 | ~1880 |
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 |
1930
Cook, Illinois
Spouse, age 50
Cook, Illinois · implied b. ~1880 — 4 household members
| 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 |
Spouse, age 60
Cook-County, Illinois · implied b. ~1880 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| 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 Mary Donovan 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 Donovan
Spouse · 1930 · age 50 · b. ~1880 · Illinois
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Cook, Illinois
Open full size
1930 US Federal Census — Cook, Illinois
Page Contents
31 people indexed on this census page (ia:1930:illinoiscensus00reel495:0154)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Patrick Donovan | 55 | Head | Superintendent | Illinois |
| 2 | Mary Donovan THIS PERSON | 50 | Wife | None | Illinois |
| 3 | Alice Donovan | 29 | Daughter | Teacher | Illinois |
| 4 | Howard Donovan | 15 | Son | Secretary | Illinois |
| 8 | Leon W. Walker | 34 | Head | Secretary | New Mexico |
| 9 | Bessie L. Walker | 34 | Wife | None | Michigan |
| 10 | Leon Jr. Walker | 5 | Son | — | Illinois |
| 11 | Betty Jane Walker | 4 | Daughter | — | Illinois |
| 12 | Harry S. Hanley | 27 | Head | Conductor | Illinois |
| 13 | Arline Hanley | 26 | Wife | None | Illinois |
| 14 | Richard Hanley | 5 | Son | — | Illinois |
| 15 | Kate Mccrae | 60 | Roomer | Clerk | Michigan |
| 17 | Samuel Luzzo | 50 | Head | Leader | Illinois |
| 18 | Sara Luzzo | 42 | Wife | None | Illinois |
| 19 | Helen Luzzo | 25 | Daughter | Teacher | Illinois |
| 20 | Wesley Luzzo | 21 | Son | None | California |
| 21 | Lola Luzzo | 17 | Daughter | None | Illinois |
| 22 | Francis Luzzo | 12 | Son | None | Illinois |
| 23 | Audrey Smith | 18 | Stepdaughter | None | Illinois |
| 24 | Julian Smith | 15 | Step Son | None | Illinois |
| 25 | Dorothea Carpunatum | 55 | Head | Dressmaking | Illinois |
| 32 | John Frederickson | 34 | Head | Musician | Illinois |
| 33 | Helen Frederickson | 38 | Wife | None | Illinois |
| 34 | John Frederickson | 3 | Son | — | Illinois |
| 35 | Frederick Busch | 9 | Step-Son | — | Illinois |
| 36 | Lydia Segerfeldt | 37 | Maid | Maid | Sweden |
| 42 | Edward Woodworth | 54 | Head | Commercial Man | Illinois |
| 43 | Lillian Woodworth | 25 | Daughter | Teacher | Illinois |
| 46 | Martin F. Maloney | 69 | Head | Undertaker | Illinois |
| 47 | Sophia G. Maloney | 58 | Wife | None | Illinois |
| 48 | Gertrude Goldman | 67 | Mother in law | None | Illinois |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)