ST
Samuel Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · District-Of-Columbia-County, District of Columbia
Our Model Tree links this Samuel Thomas across the 1920, 1930 and 1940 US Censuses in District-Of-Columbia-County, District of Columbia (XGBoost, ~Confirmed) — first a head (b.~1890), then head of a 3-person household.
Age 50
b. ~1890
Male
Head
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | District-Of-Columbia-County, District of Columbia |
| Surname | Thomas |
| Given Name | Samuel |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Washington |
| 1935 Residence (County) | District Of Columbia |
| Additional Details | |
| Occupation | Gardener |
| Industry | Private home |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 750 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Gardener |
| Township / Ward | Washington |
| Est. Birth Year | ~1890 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Samuel | Age | Birth yr |
|---|---|---|---|---|
| Samuel Thomas | Head | — | 50 | ~1890 |
| Ralph Thomas | Son | — | 21 | ~1919 |
| Adelaide Thomas | Spouse | — | 50 | ~1890 |
Census Appearances
1920
X, District …
Head, age 27
X, District of Columbia · implied b. ~1893 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Sam H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Helper |
| Industry | Express Co. |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
None, District …
Head, age 37
None, District of Columbia · implied b. ~1893 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Samuel |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 37 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 21 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Fireman |
| Industry | Gas Light Company |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 25.50 |
| Radio Set | no |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
District-Of-Columbia-County, District …
Head, age 50
District-Of-Columbia-County, District of Columbia · implied b. ~1890 — 3 household members
| Surname | Thomas |
| Given Name | Samuel |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Washington |
| 1935 Residence (County) | District Of Columbia |
| Occupation | Gardener |
| Industry | Private home |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 750 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| 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 Samuel Thomas across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
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This person
Anchor record
Samuel Thomas
Head · 1940 · age 50 · b. ~1890 · District of Columbia
★ 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 — District-Of-Columbia-County, District of Columbia
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1940 US Federal Census — District-Of-Columbia-County, District of Columbia
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00557-00217)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Beatrice Smith | 10 | Daughter | — | District of Columbia |
| 2 | William Smith | 7 | Son | — | District of Columbia |
| 3 | Leon Smith | 5 | Son | — | District of Columbia |
| 4 | Marian Smith | 1 | Daughter | — | District of Columbia |
| 5 | Clarence Gray | 32 | Head | Carpenter'S Helper | District of Columbia |
| 6 | Ann Gray | 27 | Wife | Housewife | Virginia |
| 7 | Romeo Gray | 8 | Son | — | District of Columbia |
| 8 | Alice Gray | 7 | Daughter | — | District of Columbia |
| 9 | Dolores Gray | 5 | Daughter | — | District of Columbia |
| 10 | Robert Leroy Jones | 23 | Head | Machine Operator | District of Columbia |
| 11 | Thelma Jones | 22 | Wife | — | Virginia |
| 12 | Doris Jones | 3 | Daughter | — | District of Columbia |
| 13 | Shirley Jones | 1 | Daughter | — | District of Columbia |
| 14 | Cleo Jackson | 17 | Sister-in-law | — | Virginia |
| 15 | Louis Folly | 79 | Head | Junk Scavenger | Virginia |
| 16 | Emma Delia Folly | 48 | Lodger | — | District of Columbia |
| 17 | Elizabeth Edwards | 49 | Lodger's mother | — | District of Columbia |
| 18 | Samuel Edwards | 18 | Lodger's nephew | — | District of Columbia |
| 19 | Fred Curley | 36 | Head | Truck Loader | District of Columbia |
| 20 | Hazel Curley | 23 | Wife | Housework | District of Columbia |
| 21 | John Van Horn | 51 | Head | Truck Driver | District of Columbia |
| 22 | Hallie Van Horn | 50 | Wife | — | District of Columbia |
| 23 | William Reynolds | 57 | Lodger | — | Virginia |
| 24 | Robert Hill | 59 | Lodger | — | District of Columbia |
| 25 | Samuel Thomas THIS PERSON | 50 | Head | Gardener | Maryland |
| 26 | Adelaide Thomas | 50 | Wife | Nurse | Maryland |
| 27 | Ralph Thomas | 21 | Son | Delivery Boy | Pennsylvania |
| 28 | Gene Calhoun | 29 | Head | — | District of Columbia |
| 29 | Hazel Calhoun | 10 | Daughter | — | District of Columbia |
| 30 | Florence Calhoun | 7 | Daughter | — | District of Columbia |
| 31 | Mary Calhoun | 5 | Daughter | — | District of Columbia |
| 32 | Vernon Calhoun | 3 | Son | — | District of Columbia |
| 33 | Lester Pinckney | 37 | Uncle | Dishwasher | District of Columbia |
| 34 | William Walker | 57 | Head | — | Wyoming |
| 35 | Marie Walker | 28 | Wife | — | Virginia |
| 36 | William, Jr. Walker | 2 | Son | — | District of Columbia |
| 37 | James Lomax | 51 | Head | — | District of Columbia |
| 38 | Lilly Harrington | 53 | Lodger | Housework | District of Columbia |
| 39 | Mary Davis | 65 | Lodger | — | District of Columbia |
| 40 | Frances Jackson | 49 | Head | Laundress | District of Columbia |
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)