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Lewis Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Mary'S-County, Maryland
Our Model Tree links this Lewis Thomas across the 1930 and 1940 US Censuses in St.-Mary'S-County, Maryland (XGBoost, ~Confirmed) — first a head (b.~1887), then head of a 8-person household.
Age 53
b. ~1887
Male
Head
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Mary'S-County, Maryland |
| Surname | Thomas |
| Given Name | Lewis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | R |
| 1935 Residence (County) | St Mary's |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | 0 |
| 1935 Residence | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Farmer |
| Township / Ward | District 4 Chaptico |
| Est. Birth Year | ~1887 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Lewis | Age | Birth yr |
|---|---|---|---|---|
| Mary Thomas | Spouse | — | 52 | ~1888 |
| James Thomas | Son | — | 25 | ~1915 |
| George Thomas | Son | — | 29 | ~1911 |
| Philip Thomas | Son | — | 18 | ~1922 |
| Joseph Thomas | Son | — | 20 | ~1920 |
| Laurence Thomas | Son | — | 7 | ~1933 |
| Lewis Thomas | Head | — | 53 | ~1887 |
| Walter Thomas | Son | — | 13 | ~1927 |
Census Appearances
1930
St Marys, …
Head, age 42
St Marys, Maryland · implied b. ~1888 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Lewis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 21 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Veteran | No |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
St.-Mary'S-County, Maryland
Head, age 53
St.-Mary'S-County, Maryland · implied b. ~1887 — 8 household members
| Surname | Thomas |
| Given Name | Lewis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | R |
| 1935 Residence (County) | St Mary's |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | 0 |
| 1935 Residence | Maryland |
| 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 Lewis Thomas across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Lewis Thomas
Head · 1940 · age 53 · b. ~1887 · Maryland
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — St.-Mary'S-County, Maryland
Open full size
1940 US Federal Census — St.-Mary'S-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01559-00588)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ann Mills | 10 | daughter | — | Maryland |
| 2 | Juanita Mills | 5 | daughter | — | Maryland |
| 3 | Harry S. Alvey | 70 | Head | Farmer | Maryland |
| 4 | Allen Alvey | 19 | Son | Farm Laborer | Maryland |
| 5 | Joseph Barber | 60 | Head | Farmer | Maryland |
| 6 | Rebecca Barber | 50 | Wife | Mid-Wife | Maryland |
| 7 | Joseph Barber | 16 | Son | — | Maryland |
| 8 | Mary Barber | 13 | Grand daughter | — | Maryland |
| 9 | Raymond Tennyson | 28 | Head | Chauffeur | Maryland |
| 10 | Thelma Tennyson | 25 | Wife | — | Maryland |
| 11 | Raymond Tennyson | 6 | son | — | Maryland |
| 12 | Jean Tennyson | 3 | daughter | — | Maryland |
| 13 | Joyce Tennyson | 2 | daughter | — | Maryland |
| 14 | James Tennyson | 1 | son | — | Maryland |
| 15 | Joseph Briscoe | 19 | Hired hand | Farm Laborer | Maryland |
| 16 | James T. Fenwick | 53 | Head | Farmer | Maryland |
| 17 | Louise Fenwick | 48 | Wife | — | Maryland |
| 18 | John Fenwick | 27 | son | Farmer | Maryland |
| 19 | Paul Fenwick | 26 | son | Servant | Maryland |
| 20 | Thomas Fenwick | 21 | son | Farm Laborer | Maryland |
| 21 | Harry Fenwick | 17 | son | Farmer | Maryland |
| 22 | George Fenwick | 13 | son | — | Maryland |
| 23 | Mary Fenwick | 11 | daughter | — | Maryland |
| 24 | Francis Fenwick | 9 | son | — | Maryland |
| 25 | Frank Fenwick | 6 | son | — | Maryland |
| 26 | Aloysius Mills | 22 | son-in-law | Farm Laborer | Maryland |
| 27 | Elizabeth Mills | 19 | daughter | — | Maryland |
| 28 | Agnes Mills | 2 | Grand daughter | — | Maryland |
| 29 | Elizabeth Short | 48 | Head | Road Laborer | Maryland |
| 30 | William Short | 26 | son | Farm Laborer | Maryland |
| 31 | Henry Short | 21 | son | — | Maryland |
| 32 | Thomas Short | 15 | son | — | Maryland |
| 33 | Lewis Thomas THIS PERSON | 53 | Head | Farmer | Maryland |
| 34 | Mary Thomas | 52 | Wife | — | Maryland |
| 35 | George Thomas | 29 | son | Farm Laborer | Maryland |
| 36 | James Thomas | 25 | son | Farm Laborer | Maryland |
| 37 | Joseph Thomas | 20 | son | Farm Laborer | Maryland |
| 38 | Philip Thomas | 18 | son | Farm Laborer | Maryland |
| 39 | Walter Thomas | 13 | son | — | Maryland |
| 40 | Laurence Thomas | 7 | son | — | Maryland |
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)