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Mary Baldwin — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Mary Baldwin across the 1920, 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a head (b.~1862), then head of a 3-person household.
Age 68
b. ~1862
Female
Head
Born: Illinois
Widowed
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Baldwin |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 68 |
| Marital Status | Widowed |
| Birthplace | Illinois |
| Age at First Marriage | 27 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Bookkeeper |
| Industry | Chain Store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Bookkeeper |
| Township / Ward | Chicago |
| Est. Birth Year | ~1862 |
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 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Nellie Drayer | Daughter | — | 32 | ~1898 |
| Mary Baldwin | Head | — | 68 | ~1862 |
| Harry Drayer | Other | — | 34 | ~1896 |
Census Appearances
1920
Cook, Illinois
Spouse, age 57
Cook, Illinois · implied b. ~1863 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Baldwin |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Head, age 68
Cook, Illinois · implied b. ~1862 — 3 household members
| Surname | Baldwin |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 68 |
| Marital Status | Widowed |
| Birthplace | Illinois |
| Age at First Marriage | 27 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Bookkeeper |
| Industry | Chain Store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Other, age 81
Cook-County, Illinois · implied b. ~1859 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Baldwin |
| Given Name | Mary |
| Relationship to Head | Mother-in-law |
| Sex | F |
| Color / Race | White |
| Age | 81 |
| Marital Status | Widowed |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Class of Worker | 0 |
| Hours Worked | 0 |
| Highest Grade | No 4 |
| 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 Baldwin 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 Baldwin
Head · 1930 · age 68 · b. ~1862 · 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
50 people indexed on this census page (ia:1930:illinoiscensus00reel463:0111)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Louis Abrams | 57 | Head | Salesman | Illinois |
| 2 | Phoebe Abrams | 55 | Wife | — | Illinois |
| 3 | Anne Abrams | 34 | Daughter | Stenographer | Illinois |
| 4 | Irene Abrams | 22 | Daughter | Typist | Illinois |
| 5 | Natalie Abrams | 18 | Daughter | — | Illinois |
| 6 | David Matka | 33 | Head | Manager | Illinois |
| 7 | Mollie Matka | 62 | Mother | — | Poland Warsaw |
| 8 | Rebecca Matka | 30 | Sister | Teacher | Minnesota |
| 9 | Esther Matka | 27 | Sister | Clerical | Illinois |
| 10 | Ralph Riley | 30 | Head | Salesman | Illinois |
| 11 | Grace Riley | 24 | Daughter | Clerk | Illinois |
| 12 | Ione Riley | 30 | Wife | — | Illinois |
| 13 | Ruth Riley | 10 | Daughter | — | Illinois |
| 14 | Wm. Riley | 2 | Son | — | Illinois |
| 15 | Mary Baldwin THIS PERSON | 68 | Head | Bookkeeper | Illinois |
| 16 | Nellie Drayer | 32 | Daughter | — | Illinois |
| 17 | Harry E. Drayer | 34 | Son-in-law | Supervisor | Illinois |
| 18 | Edw. Lavin | 65 | Head | Clerk | Ireland |
| 19 | Mary E. Lavin | 32 | Daughter | Laborer | Illinois |
| 20 | Martha A. Lavin | 31 | Daughter | Estimator | Illinois |
| 21 | Steve Rouse | 54 | Head | — | Illinois |
| 22 | Agnes Rouse | 52 | Wife | Pressman | Illinois |
| 23 | Edna Rouse | 28 | Daughter | — | Illinois |
| 24 | Irving Rouse | 20 | Son | Hairdresser | Illinois |
| 25 | James Gulvin | 50 | Head | — | Ireland |
| 26 | Ethel Gulvin | 22 | Daughter | Clerk | Illinois |
| 27 | Albert H. Foster | 41 | Head | Sales Manager | Illinois |
| 28 | Bessie Foster | 42 | Wife | — | Nebraska |
| 29 | Ruth Foster | 17 | Daughter | — | Illinois |
| 30 | Virginia Foster | 12 | Daughter | — | Illinois |
| 31 | Anna Foster | 11 | Daughter | — | Illinois |
| 32 | Aloys Longe | 55 | Head | Merchant | Wisconsin |
| 33 | Theresa Longe | 38 | Wife | Teacher | Illinois |
| 34 | Francis Longe | 10 | Son | — | Illinois |
| 35 | Edmund Longe | 10 | Son | — | Illinois |
| 36 | Margaret Graham | 23 | Head | Clerical | Illinois |
| 37 | John Graham | 21 | Brother | Advertising | Illinois |
| 38 | Margaret Perry | 31 | Boarder | General Off. Work | Michigan |
| 39 | Anna Mckenna | 65 | Head | — | Ireland |
| 40 | John Mckenna | 34 | Son | Chauffeur | Illinois |
| 41 | Margaret Mckenna | 34 | Daughter-in-law | Operator | Illinois |
| 42 | Francis Mckenna | 26 | Son | Machinist | Illinois |
| 43 | Elizabeth Mckenna | 23 | Daughter | Stenographer | Illinois |
| 44 | Wm. Coyle | 53 | Head | Operator | England |
| 45 | Susan Coyle | 50 | Wife | — | England |
| 46 | Liza Seaborne | 72 | Mother-in-law | — | England |
| 47 | William Murray | 50 | Head | Inspector | Illinois |
| 48 | Jane Murray | 50 | Wife | — | Massachusetts |
| 49 | Jane Murray | 21 | Daughter | — | Illinois |
| 50 | Margaret Murray | 16 | Daughter | — | Illinois |
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)