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Martha Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Mary-County, Louisiana
Our Model Tree links this Martha Thomas across the 1920, 1930 and 1940 US Censuses in St.-Mary-County, Louisiana (XGBoost, ~Confirmed) — first a spouse (b.~1888), then head of a 3-person household.
Age 52
b. ~1888
Female
Spouse
Born: Louisiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Mary-County, Louisiana |
| Surname | Thomas |
| Given Name | Martha O. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Louisiana |
| 1935 Residence (County) | St. Mary |
| Additional Details | |
| Occupation | 75 |
| Highest Grade | No 6 |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
| Occupation | 75 |
| Township / Ward | Ward 4 |
| Est. Birth Year | ~1888 |
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 Martha | Age | Birth yr |
|---|---|---|---|---|
| Daniel Thomas | Head | — | 53 | ~1887 |
| Wilbert Thomas | Son | — | 20 | ~1920 |
| Martha Thomas | Spouse | — | 52 | ~1888 |
Census Appearances
1920
St Mary, …
Spouse, age 32
St Mary, Louisiana · implied b. ~1888 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Martha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Louisiana |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1930
St Mary, …
Other, age 43
St Mary, Louisiana · implied b. ~1887 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Martha S. |
| Sex | F |
| Color / Race | Black |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Louisiana |
| Age at First Marriage | 27 |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Can Read/Write | Yes |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1940
St.-Mary-County, Louisiana
Spouse, age 52
St.-Mary-County, Louisiana · implied b. ~1888 — 3 household members
| Surname | Thomas |
| Given Name | Martha O. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Louisiana |
| 1935 Residence (County) | St. Mary |
| Occupation | 75 |
| Highest Grade | No 6 |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
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 Martha Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Martha Thomas
Spouse · 1940 · age 52 · b. ~1888 · Louisiana
★ 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 — St.-Mary-County, Louisiana
Open full size
1940 US Federal Census — St.-Mary-County, Louisiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01454-00435)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lillie Seymour | 4 | Daughter | — | Louisiana |
| 2 | Annie Kemp | 52 | Head | — | Louisiana |
| 3 | Lillie Kemp | 29 | Daughter | — | Louisiana |
| 4 | Wilfred Vendum | 31 | Head | Cane Farm | Louisiana |
| 5 | Ruby Vendum | 26 | Wife | — | Louisiana |
| 6 | Janet Vendum | 3 | Daughter | — | Louisiana |
| 7 | Maxine Vendum | 1 | Daughter | — | Louisiana |
| 8 | Fred George | 36 | Nephew | Orchestra | Louisiana |
| 9 | Anatole Amala | 28 | Head | Cane Farm | Louisiana |
| 10 | Elsie O. Amala | 27 | Wife | — | Louisiana |
| 11 | Edward Amala | 24 | Son | Cane Farm | Louisiana |
| 12 | Dalton Amala | 22 | Son | Cane Farm | Louisiana |
| 13 | Josh Amala | 7 | Son | — | Louisiana |
| 14 | Lucinda Amala | 17 | Daughter | Private Home | Louisiana |
| 15 | Margie Amala | 17 | Daughter | — | Louisiana |
| 16 | Mercedes Amala | 13 | Daughter | — | Louisiana |
| 17 | Katie Amala | 11 | Daughter | — | Louisiana |
| 18 | Geraldine Amala | 8 | Daughter | — | Louisiana |
| 19 | Margaret Amala | 2 | Daughter | — | Louisiana |
| 20 | Belle Mccullen | 62 | Head | At Home | Louisiana |
| 21 | Daniel Thomas | 53 | Head | Cane Farm | Louisiana |
| 22 | Martha O. Thomas THIS PERSON | 52 | Wife | 75 | Louisiana |
| 23 | Wilbert Thomas | 20 | Son | Sugar Mill | Louisiana |
| 24 | Sam Mathew | 49 | Head | Cane Farm | Louisiana |
| 25 | Corrie O. Mathew | 51 | Wife | — | Louisiana |
| 26 | Joseph Hudson | 60 | Head | Cane Farm | Louisiana |
| 27 | Edith Hudson | 56 | Wife | — | Louisiana |
| 28 | John Washington | 70 | Head | — | Louisiana |
| 29 | Isaiah Randolph | 47 | Head | Cane Farm | Louisiana |
| 30 | Cora O. Randolph | 44 | Wife | — | Louisiana |
| 31 | Leonard Randolph | 16 | Son | — | Louisiana |
| 32 | Mary Randolph | 11 | Daughter | — | Louisiana |
| 33 | John Randolph | 9 | Son | — | Louisiana |
| 34 | Henry Randolph | 21 | Head | Sugar Mill | Louisiana |
| 35 | Gladys Randolph | 22 | Wife | — | Louisiana |
| 36 | Willie Robinson | 61 | Head | Cane Farm | Louisiana |
| 37 | Delia O. Robinson | 51 | Wife | — | Louisiana |
| 38 | Willie Collins | 32 | Lodger | Cane Farm | Louisiana |
| 39 | William Randolph | 24 | Head | Sugar Mill | Louisiana |
| 40 | Maggie Randolph | 22 | Wife | — | Louisiana |
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)