DB
Donald Baker — 1940 US Census Record
Model Tree available1940 United States Federal Census · St.-Joseph-County, Indiana
Our Model Tree links this Donald Baker across the 1920, 1930 and 1940 US Censuses in St.-Joseph-County, Indiana (XGBoost, ~Confirmed), with identified parents Donald & Thelma — first a son (b.~1919), then head of a 6-person household.
Age 21
b. ~1919
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Joseph-County, Indiana |
| Surname | Baker |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | South Bend |
| 1935 Residence (County) | St. Joseph |
| Additional Details | |
| Occupation | Truck Driver |
| Industry | Laundry |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1100 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Truck Driver |
| Township / Ward | South Bend |
| Est. Birth Year | ~1919 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Donald | Age | Birth yr |
|---|---|---|---|---|
| Donald Baker | Son | — | 21 | ~1919 |
| Donald Baker | Head | — | 42 | ~1898 |
| Thelma Baker | Spouse | — | 41 | ~1899 |
| Frances Baker | Daughter | — | 19 | ~1921 |
| George Baker | Son | — | 11 | ~1929 |
| Robert Baker | Son | — | 17 | ~1923 |
Census Appearances
1920
St Joseph, …
Other, age 1
St Joseph, Indiana · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Baker |
| Given Name | Donald G. Jr. |
| Relationship to Head | Grandson |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | none |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
St Joseph, …
Son, age 11
St Joseph, Indiana · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Baker |
| Given Name | Donald Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
St.-Joseph-County, Indiana
Son, age 21
St.-Joseph-County, Indiana · implied b. ~1919 — 6 household members
| Surname | Baker |
| Given Name | Donald |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | South Bend |
| 1935 Residence (County) | St. Joseph |
| Occupation | Truck Driver |
| Industry | Laundry |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1100 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Donald Baker (~0.92 confidence) and mother Thelma Baker (~0.92 confidence) and father Lorenzo Davidson (~0.83 confidence) and mother Lena Davidson (~0.83 confidence). The pedigree spans 2 generations with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.88
Father
Donald Baker
b. ~1898
Source father
● Household
· direct · ~0.92
Mother
Thelma Baker
b. ~1899
Source mother
● Household
· direct · ~0.92
Father
Lorenzo Davidson
b. ~1873
Source mother>father
● Household
· direct · ~0.83
Mother
Lena Davidson
b. ~1875
Source mother>mother
● Household
· direct · ~0.83
This person
Anchor record
Donald Baker
Son · 1940 · age 21 · b. ~1919 · Indiana
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Sibling
Robert Baker
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frances Baker
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Baker
Sibling · 1940 · age 11
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 — St.-Joseph-County, Indiana
Open full size
1940 US Federal Census — St.-Joseph-County, Indiana
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-01134-00056)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Marie Hartley | 27 | daughter | — | Canada Eng |
| 42 | Joan Hartley | 12 | daughter | — | Indiana |
| 43 | Fred Dinkell | 42 | Head | Mechanic - Test Dr | Indiana |
| 44 | Donald D Marchu | 29 | Head | Metal Finisher | Indiana |
| 45 | Esther Marchu | 26 | Wife | Rubber Worker | Indiana |
| 46 | Harvey A Marsh | 41 | Head | Receiving Clerk | Indiana |
| 47 | Genevieve A Marsh | 38 | Wife | File Clerk | Michigan |
| 48 | Frances M Avery | 65 | Mother in law | — | Ohio |
| 49 | E J Hoelscher | 36 | Head | Salesman | Ohio |
| 50 | Marietta D Hoelscher | 37 | Wife | — | Ohio |
| 51 | Sandra Hoelscher | 4 | daughter | — | Ohio |
| 52 | Marcia Hoelscher | 2 | daughter | — | Indiana |
| 54 | Donald D Baker | 42 | Head | Salesman | Indiana |
| 55 | Thelma Baker | 41 | Wife | — | Indiana |
| 56 | Donald Baker THIS PERSON | 21 | Son | Truck Driver | Indiana |
| 57 | Frances J Baker | 19 | daughter | Bookkeeper | Indiana |
| 58 | Robert Louis Baker | 17 | Son | — | Indiana |
| 59 | George William Baker | 11 | Son | — | Indiana |
| 60 | Barbara D Weltzel | 52 | Head | — | Indiana |
| 61 | Thomas Weltzel | 21 | Son | Office Clerk | Indiana |
| 62 | Mary Louise Weltzel | 18 | daughter | New Worker | Indiana |
| 63 | Robert Harbin | 36 | Son in law | Mechanic | North Carolina |
| 64 | Geraldine Harbin | 29 | daughter | — | Indiana |
| 65 | Robert Lee Harbin | 2 | grandson | — | Indiana |
| 66 | James Harbin | 20 | Lodger | Filling Station | N Carolina |
| 67 | Earl Mcclusky | 32 | Head | Typesetter | Indiana |
| 68 | Edna Mcclusky | 32 | Wife | — | Indiana |
| 69 | James Mcclusky | 9 | Son | — | Indiana |
| 70 | Donald Mcclusky | 7 | Son | — | Indiana |
| 71 | George Emmons | 42 | Head | Auto Mechanic | Indiana |
| 72 | Lena Emmons | 36 | Wife | — | Indiana |
| 73 | Frances Emmons | 19 | daughter | New Worker | Indiana |
| 74 | George Jr. Emmons | 15 | Son | — | Indiana |
| 75 | Donna Jane Emmons | 10 | daughter | — | Indiana |
| 76 | Lionel James Peck | 42 | Head | Solderman | Illinois |
| 77 | Gertrude Peck | 40 | Wife | — | Illinois |
| 78 | Raymond Riedl | 29 | Lodger | Pipe Layer | Wisconsin |
| 79 | Anna Riedl | 26 | Lodger | — | Indiana |
Related Census Records
Pedigree Summary
Donald + 3 siblings
Gen 1 · 2 parents
~0.92
Gen 2 · 2 grandparents
~0.83
Max depth 4 (1900–1950 window)
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)