DB
Donald Baker — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cook-County, Illinois
Our Model Tree links this Donald Baker across the 1930 and 1940 US Censuses in Cook-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 8-person household.
Age 11
b. ~1929
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cook-County, Illinois |
| Surname | Baker |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1929 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Donald | Age | Birth yr |
|---|---|---|---|---|
| Patricia Baker | Daughter | — | 3 | ~1937 |
| Donald Baker | Son | — | 11 | ~1929 |
| Lawrence Baker | Son | — | 6 | ~1934 |
| Mary Baker | Spouse | — | 33 | ~1907 |
| Jane Baker | Daughter | — | 8 | ~1932 |
| Paul Baker | Son | — | 13 | ~1927 |
| Paul Baker | Head | — | 42 | ~1898 |
| Virginia Baker | Daughter | — | ~1940 |
Census Appearances
1930
Cook, Illinois
Son, age
Cook, Illinois · implied b. ~1930 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Baker |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Wisconsin |
| Mother's Birthplace | Mexico-Settlement|Mexico-Settlements |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 11
Cook-County, Illinois · implied b. ~1929 — 8 household members
| Surname | Baker |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| 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 Donald Baker across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Donald Baker
Son · 1940 · age 11 · b. ~1929 · Illinois
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Sibling
Paul Baker
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Baker
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lawrence Baker
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Virginia Baker
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jane Baker
Sibling · 1940 · age 8
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 — 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-t0627-00953-00099)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Louis Simons | 43 | Head | — | Tennessee |
| 2 | Cecelia Simons | 17 | Daughter | New Worker | Illinois |
| 3 | Joseph Simons | 16 | Son | — | Illinois |
| 4 | John Simons | 14 | Son | — | Illinois |
| 5 | Carmella Simons | 13 | Daughter | — | Illinois |
| 6 | Louise Simons | 12 | Daughter | — | Illinois |
| 7 | James Simons | 11 | Daughter | — | Illinois |
| 8 | Margaret Davis | 19 | Daughter | — | Illinois |
| 9 | Margaret Davis | 0 | Granddaughter | — | Illinois |
| 10 | Hyman Margolis | 40 | Head | Watch Repairer | Russia |
| 11 | Jeanette Margolis | 31 | Wife | Saleslady | Illinois |
| 12 | Marvin Margolis | 12 | Son | — | Illinois |
| 13 | Samuel Margolis | 9 | Son | — | Illinois |
| 14 | Mathew Margolis | 5 | Son | — | Illinois |
| 15 | James Mchenry | 73 | Head | — | Washington |
| 16 | Annie Mchenry | 62 | Wife | — | Illinois |
| 17 | Clyde Roberts | 50 | Head | Laborer | Indiana |
| 18 | Anna Roberts | 49 | Wife | — | Indiana |
| 19 | Naomi Roberts | 21 | Daughter | — | Indiana |
| 20 | Paul Roberts | 25 | Son | Automobile Mechanic | Indiana |
| 21 | Charlotte Roberts | 27 | Daughter-in-law | Wrapper | Illinois |
| 22 | Pauline Roberts | 9 | Daughter | — | Illinois |
| 23 | John D. Hannon | 30 | Head | Bottle Filler | Illinois |
| 24 | Frances Hannon | 20 | Wife | — | Illinois |
| 25 | Rosalie Hannon | 1 | Daughter | — | Illinois |
| 26 | Joyce Hannon | 0 | Daughter | — | Illinois |
| 27 | Frank Hill | 46 | Head | Senior Clerk | Illinois |
| 28 | June Hill | 42 | Wife | — | Illinois |
| 29 | Frank Jr. Hill | 18 | Son | Messenger | Illinois |
| 30 | Marion Hill | 17 | Daughter | — | Illinois |
| 31 | John Hill | 15 | Son | — | Illinois |
| 32 | Patricia Hill | 5 | Daughter | — | Illinois |
| 33 | Paul Baker | 42 | Head | Postal Clerk | Indiana |
| 34 | Mary Baker | 33 | Wife | — | Scotland |
| 35 | Paul Baker | 13 | Son | — | Illinois |
| 36 | Donald Baker THIS PERSON | 11 | Son | — | Illinois |
| 37 | Jane Baker | 8 | Daughter | — | Illinois |
| 38 | Lawrence Baker | 6 | Son | — | Illinois |
| 39 | Patricia Baker | 3 | Daughter | — | Illinois |
| 40 | Virginia Baker | 0 | Daughter | — | Illinois |
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)