DT
Donald Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Washington-County, Maryland
Our Model Tree links this Donald Thomas across the 1930 and 1940 US Censuses in Washington-County, Maryland (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 11-person household.
Age 12
b. ~1928
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Washington-County, Maryland |
| Surname | Thomas |
| Given Name | Donald A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Boonsboro Election District 6 |
| 1935 Residence (County) | Washington |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same House |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Boonsboro Election District 6 |
| Est. Birth Year | ~1928 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Donald | Age | Birth yr |
|---|---|---|---|---|
| Theodore Thomas | Son | — | 16 | ~1924 |
| Rhoda Thomas | Daughter | — | 6 | ~1934 |
| Carrie Thomas | Daughter | — | 21 | ~1919 |
| Leon Thomas | Son | — | 7 | ~1933 |
| Norman Thomas | Head | — | 44 | ~1896 |
| Ethel Thomas | Spouse | — | 28 | ~1912 |
| Betty Thomas | Daughter | — | 5 | ~1935 |
| Donald Thomas | Son | — | 12 | ~1928 |
| Richard Thomas | Son | — | 19 | ~1921 |
| Gladys Thomas | Daughter | — | 3 | ~1937 |
| Clara Thomas | Daughter | — | 2 | ~1938 |
Census Appearances
1930
Washington, Maryland
Son, age 2
Washington, Maryland · implied b. ~1928 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Donald A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Illinois |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Washington-County, Maryland
Son, age 12
Washington-County, Maryland · implied b. ~1928 — 11 household members
| Surname | Thomas |
| Given Name | Donald A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Boonsboro Election District 6 |
| 1935 Residence (County) | Washington |
| Highest Grade | No 6 |
| 1935 Residence | Same House |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 12 · b. ~1928 · Maryland
★ You are viewing this record
Sibling
Theodore Thomas
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clara Thomas
Sibling · 1940 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leon Thomas
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Thomas
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gladys Thomas
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Thomas
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Carrie Thomas
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rhoda Thomas
Sibling · 1940 · age 6
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 — Washington-County, Maryland
Open full size
1940 US Federal Census — Washington-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01562-00139)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Harry G Sines | 34 | Head | Machinist | Maryland |
| 42 | Ruth Sines | 31 | Wife | — | Maryland |
| 43 | Ralph W Sines | 10 | Son | — | Maryland |
| 44 | Jerry L Sines | 7 | Son | — | Maryland |
| 45 | Ronald R Sines | 5 | Son | — | Maryland |
| 46 | Norman H Thomas | 44 | Head | Owner | Maryland |
| 47 | Ethel V Thomas | 28 | Wife | — | Maryland |
| 48 | Carrie Mae Thomas | 21 | Daughter | — | Illinois |
| 49 | Richard L Thomas | 19 | Son | Labor | Maryland |
| 50 | Theodore H Thomas | 16 | Son | Labor | Maryland |
| 51 | Donald A Thomas THIS PERSON | 12 | Son | — | Maryland |
| 52 | Leon A Thomas | 7 | Son | — | Maryland |
| 53 | Rhoda A Thomas | 6 | Daughter | — | Maryland |
| 54 | Betty C Thomas | 5 | Daughter | — | Maryland |
| 55 | Gladys A Thomas | 3 | Daughter | — | Maryland |
| 56 | Clara H Thomas | 2 | Daughter | — | Maryland |
| 57 | Luther Strope | 60 | Head | Owner | Maryland |
| 58 | Anna Strope | 58 | Wife | — | Maryland |
| 59 | Thelma Strope | 25 | Daughter | — | Maryland |
| 60 | Thompson D Brown | 48 | Head | Owner | Pennsylvania |
| 61 | Virginia H Brown | 60 | Wife | — | Maryland |
| 62 | Evanna Brown | 23 | Daughter | Stenographer | Maryland |
| 63 | Lydia Huyett | 90 | Mother | — | Maryland |
| 64 | Orvill Taylor | 60 | Head | Disable | Maryland |
| 65 | Effie Taylor | 54 | Wife | — | Maryland |
| 66 | Virginia Cronise | 18 | Daughter | — | Maryland |
| 67 | Goldie Taylor | 14 | Daughter | — | Maryland |
| 68 | Orvill Jr Taylor | 12 | Son | — | Maryland |
| 69 | Roger Mozer | 30 | Head | Wood Worker | Maryland |
| 70 | Marie Mozer | 29 | Wife | — | Maryland |
| 71 | Charles Clingan | 43 | Head | Cook And Watchman | Maryland |
| 72 | Erma Clingan | 29 | Wife | — | Maryland |
| 73 | Thelma Clingan | 7 | Daughter | — | Maryland |
| 74 | Elmer T Kline | 28 | Head | Labor | Maryland |
| 75 | Edna Kline | 25 | Wife | — | Maryland |
| 76 | Clyde Morrow | 48 | Head | Machinist | Maryland |
| 77 | Anna Morrow | 45 | Wife | — | Maryland |
| 78 | Paul Morrow | 21 | Son | Labor | Maryland |
| 79 | Annabelle Morrow | 19 | Daughter | — | Maryland |
| 80 | Patsy Morrow | 11 | Daughter | — | Maryland |
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)