DT
Donald Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allen-County, Indiana
Our Model Tree links this Donald Thomas across the 1920, 1930 and 1940 US Censuses in Allen-County, Indiana (XGBoost, ~Confirmed), with identified parents Albert & Albert — first a head (b.~1904), then head of a 6-person household.
Age 36
b. ~1904
Male
Head
Born: Indiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allen-County, Indiana |
| Surname | Thomas |
| Given Name | Donald C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Fort Wayne |
| 1935 Residence (County) | Allen |
| Additional Details | |
| Occupation | Asst. manager |
| Industry | Life Insurance |
| Class of Worker | PW |
| Hours Worked | 72 |
| Income (1939) | 3226 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Asst. Manager |
| Township / Ward | Fort Wayne |
| Est. Birth Year | ~1904 |
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 |
|---|---|---|---|---|
| Elizabeth Thomas | Spouse | — | 35 | ~1905 |
| James Thomas | Son | — | 5 | ~1935 |
| Donald Thomas | Son | — | 7 | ~1933 |
| Donald Thomas | Head | — | 36 | ~1904 |
| Rodney Thomas | Son | — | ~1940 | |
| Phyllis Kurtz | Other | — | 20 | ~1920 |
Census Appearances
1920
Allen, Indiana
Son, age 15
Allen, Indiana · implied b. ~1905 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Donald L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Canada |
| Mother's Birthplace | Indiana |
| Occupation | News Boy |
| Industry | Paper |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Allen, Indiana
Son, age 26
Allen, Indiana · implied b. ~1904 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Donald C |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Canada |
| Mother's Birthplace | Indiana |
| Occupation | Agent |
| Industry | Insurance |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Allen-County, Indiana
Head, age 36
Allen-County, Indiana · implied b. ~1904 — 6 household members
| Surname | Thomas |
| Given Name | Donald C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Fort Wayne |
| 1935 Residence (County) | Allen |
| Occupation | Asst. manager |
| Industry | Life Insurance |
| Class of Worker | PW |
| Hours Worked | 72 |
| Income (1939) | 3226 |
| Highest Grade | C 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 Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Albert Thomas (~0.92 confidence) and father Albert Thomas (~0.92 confidence) and mother Amy Thomas (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Albert Thomas
b. ~1872
Source father
● Household
· direct · ~0.92
Father
Albert Thomas
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Amy Thomas
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Donald Thomas
Head · 1940 · age 36 · b. ~1904 · Indiana
★ 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 — Allen-County, Indiana
Open full size
1940 US Federal Census — Allen-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01115-00382)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Robert M. Otis | 36 | Head | Salesman | Ohio |
| 2 | Pearl M. Otis | 34 | Wife | Saleslady | Indiana |
| 3 | Joyce Otis | 12 | Daughter | — | Ohio |
| 4 | Robert Jr. Otis | 11 | Son | — | Ohio |
| 5 | Fay L. Phelps | 30 | Head | Tool Maker | Kentucky |
| 6 | Harry N. Phelps | 32 | Wife | — | Indiana |
| 7 | Mildred Wyatt | 43 | Head | — | Indiana |
| 8 | Joan Wyatt | 8 | Daughter | — | Indiana |
| 9 | Lois Cleveland | 19 | Maid | Maid | Michigan |
| 10 | Maurice Wakefield | 36 | Head | Plant Manager | Minnesota |
| 11 | Helen D. Wakefield | 29 | Wife | — | Minnesota |
| 12 | Hugh B. Wakefield | 11 | Son | — | North Dakota |
| 13 | Barbara M. Wakefield | 9 | Daughter | — | North Dakota |
| 14 | Ralph E. Light | 47 | Head | Dentist | Indiana |
| 15 | Ethel D. Light | 45 | Wife | — | Ohio |
| 16 | Ralph Light | 24 | Son | Manager | Illinois |
| 17 | Donald C. Thomas THIS PERSON | 36 | Head | Asst. Manager | Indiana |
| 18 | Elizabeth B. Thomas | 35 | Wife | — | Kentucky |
| 19 | Donald B. Thomas | 7 | Son | — | Indiana |
| 20 | James A. Thomas | 5 | Son | — | Indiana |
| 21 | Rodney R. Thomas | 0 | Son | — | Indiana |
| 22 | Phyllis Kurtz | 20 | Maid | Maid | Indiana |
| 23 | Percy Perry | 42 | Head | Cutter | Illinois |
| 24 | Dorothea Perry | 36 | Wife | — | Michigan |
| 25 | Betty Jane Perry | 5 | Daughter | — | Illinois |
| 26 | Ellen Carol Perry | 1 | Daughter | — | Indiana |
| 27 | Walter A. Bergmann | 51 | Head | Manager President | Indiana |
| 28 | Pauline M. Bergmann | 49 | Wife | — | Indiana |
| 29 | William F. Bergmann | 26 | Son | Lawyer | Indiana |
| 30 | Joseph D. Farwell | 46 | Head | Mechanical Engineer | New York |
| 31 | Hazel Farwell | 38 | Wife | — | Indiana |
| 32 | Joseph Jr. Farwell | 5 | Son | — | Indiana |
| 33 | Lewis Rhoda | 23 | Lodger | Shipping Clerk | New York |
| 34 | Frank D. Mathias | 56 | Head | Asst. Foreman | Ohio |
| 35 | Eliza Jane Mathias | 57 | Wife | — | Ohio |
| 36 | Grover J. Spittler | 44 | Head | Tool Maker | Delaware |
| 37 | Ester Spittler | 44 | Wife | — | Indiana |
| 38 | Betty Spittler | 15 | Daughter | — | Indiana |
| 39 | John D. Johnson | 35 | Head | Life Insurance Agent | Ohio |
| 40 | Lois Johnson | 36 | Wife | Packer | Indiana |
Pedigree Summary
Donald
Gen 1 · 3 parents
~0.92
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)