DT
Donald Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Erie-County, New York
Our Model Tree links this Donald Thomas across the 1930 and 1940 US Censuses in Erie-County, New York (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 10-person household.
Age 11
b. ~1929
Male
Son
Born: New York
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Erie-County, New York |
| Surname | Thomas |
| Given Name | Donald James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Buffalo city |
| 1935 Residence (County) | Erie |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Township / Ward | Buffalo 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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Donald | Age | Birth yr |
|---|---|---|---|---|
| Clarence Thomas | Head | — | 36 | ~1904 |
| Donald Thomas | Son | — | 11 | ~1929 |
| John Thomas | Son | — | 13 | ~1927 |
| Patricia Thomas | Daughter | — | 4 | ~1936 |
| Robert Thomas | Son | — | 3 | ~1937 |
| Marie Thomas | Daughter | — | 12 | ~1928 |
| James Thomas | Son | — | 8 | ~1932 |
| June Thomas | Daughter | — | 10 | ~1930 |
| Nina Thomas | Spouse | — | 36 | ~1904 |
| Joseph Thomas | Son | — | ~1940 |
Census Appearances
1930
Erie, New …
Son, age 1
Erie, New York · implied b. ~1929 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Donald J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | none |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Erie-County, New …
Son, age 11
Erie-County, New York · implied b. ~1929 — 10 household members
| Surname | Thomas |
| Given Name | Donald James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | New York |
| 1935 Residence (City) | Buffalo city |
| 1935 Residence (County) | Erie |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Donald Thomas
Son · 1940 · age 11 · b. ~1929 · New York
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Sibling
James Thomas
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marie Thomas
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Thomas
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Thomas
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
June Thomas
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Thomas
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patricia Thomas
Sibling · 1940 · age 4
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 — Erie-County, New York
Open full size
1940 US Federal Census — Erie-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02835-00098)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Gordon E. Webster | 65 | Head | — | New York |
| 42 | Loren C. Davenport | 30 | Lodger | Salesman | New York |
| 43 | Clarence J. Thomas | 36 | Head | Salesman | New York |
| 44 | Nina Marie Thomas | 36 | Wife | — | New York |
| 45 | John Joseph Thomas | 13 | Son | — | New York |
| 46 | Marie Arlien Thomas | 12 | Daughter | — | New York |
| 47 | Donald James Thomas THIS PERSON | 11 | Son | — | New York |
| 48 | June Cecile Thomas | 10 | Daughter | — | New York |
| 49 | James Anthony Thomas | 8 | Son | — | New York |
| 50 | Patricia Ann Thomas | 4 | Daughter | — | New York |
| 51 | Robert Edward Thomas | 3 | Son | — | New York |
| 52 | Joseph Thomas | 0 | Son | — | New York |
| 53 | John T. Frame | 49 | Head | Estimator | New York |
| 54 | Mary C. Frame | 49 | Wife | — | New York |
| 55 | Robert John Frame | 22 | Son | Trucker | New York |
| 56 | Rose Mary Frame | 20 | Daughter | Clerk | New York |
| 57 | John J. Frame | 18 | Son | — | New York |
| 58 | Raymond Frame | 16 | Son | — | New York |
| 59 | Betty Jane Frame | 12 | Daughter | — | New York |
| 60 | Mary Ellen Frame | 8 | Daughter | — | New York |
| 61 | Clarence Witzel | 42 | Head | Salesman | New Jersey |
| 62 | Eva Witzel | 42 | Wife | — | Pennsylvania |
| 63 | Jean Witzel | 18 | Daughter | Clerk | New York |
| 64 | Richard Witzel | 8 | Son | — | New York |
| 65 | Emilie Engeland | 75 | Head | — | Germany |
| 66 | Louisa Engeland | 43 | Daughter | — | New York |
| 67 | Mildred Brendal | 51 | Daughter | Registered Nurse | New York |
| 68 | Paul H. Brendal | 11 | Son-in-law | — | New York |
| 69 | Joan M. Brendal | 9 | Daughter | — | New York |
| 70 | Vincent R. Gregg | 54 | Head | Weighmaster | Pennsylvania |
| 71 | Audra Gregg | 54 | Wife | — | Michigan |
| 72 | Ralph S. Gregg | 26 | Son | Manager | Virginia |
| 73 | Gardiner E. Gregg | 23 | Son | Sweeper | Virginia |
| 74 | Robert M. Gregg | 21 | Son | Laborer | New York |
| 75 | Elizabeth Gregg | 23 | Daughter-in-law | Registered Nurse | New York |
| 76 | Magadeline Russ | 72 | Head | — | New York |
| 77 | George Brown | 74 | Head | — | New York |
| 78 | Helen Brown | 74 | Wife | — | New York |
| 79 | Arthur Brown | 24 | Son | Bank Teller | New York |
| 80 | Edward Boatseay | 34 | Head | Bookkeeper | New York |
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)