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Frank Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · St.-Mary-County, Louisiana
Our Model Tree links this Frank Martin across the 1920, 1930 and 1940 US Censuses in St.-Mary-County, Louisiana (XGBoost, ~Confirmed), with identified parents Albert & Alidra — first a head (b.~1900), then head of a 5-person household.
Age 40
b. ~1900
Male
Head
Born: Louisiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Mary-County, Louisiana |
| Surname | Martin |
| Given Name | Frank |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Louisiana |
| 1935 Residence (City) | Ward 4 |
| 1935 Residence (County) | St. Mary |
| Additional Details | |
| Occupation | Farmer |
| Industry | Cane farm |
| Class of Worker | OA |
| Hours Worked | 50 |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same house |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
| Occupation | Farmer |
| Township / Ward | Ward 4 |
| Est. Birth Year | ~1900 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Frank | Age | Birth yr |
|---|---|---|---|---|
| Shirley Martin | Daughter | — | 12 | ~1928 |
| Mattie Martin | Daughter | — | 14 | ~1926 |
| Frank Martin | Head | — | 40 | ~1900 |
| Frank Martin | Son | — | 18 | ~1922 |
| Elda Martin | Spouse | — | 42 | ~1898 |
Census Appearances
1920
St Mary, …
Son, age 20
St Mary, Louisiana · implied b. ~1900 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Frank |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Louisiana |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Occupation | Employee |
| Industry | Farm |
| Class of Worker | W |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1930
St Mary, …
Head, age 30
St Mary, Louisiana · implied b. ~1900 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Frank J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Louisiana |
| Age at First Marriage | 22 |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Occupation | Farmer |
| Industry | Gen. Farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1940
St.-Mary-County, Louisiana
Head, age 40
St.-Mary-County, Louisiana · implied b. ~1900 — 5 household members
| Surname | Martin |
| Given Name | Frank |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Louisiana |
| 1935 Residence (City) | Ward 4 |
| 1935 Residence (County) | St. Mary |
| Occupation | Farmer |
| Industry | Cane farm |
| Class of Worker | OA |
| Hours Worked | 50 |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same house |
| 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 Frank Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Albert Martin (~0.92 confidence) and mother Alidra Martin (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Albert Martin
b. ~1876
Source father
● Household
· direct · ~0.92
Mother
Alidra Martin
b. ~1876
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Frank Martin
Head · 1940 · age 40 · b. ~1900 · 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-t0627-01454-00438)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Oliver Francis | 27 | Head | Laborer | Louisiana |
| 42 | Beatrice Francis | 18 | Wife | Housewife | Louisiana |
| 43 | Robert Watts | 28 | Head | Farm Hand | Louisiana |
| 44 | Edith Watts | 25 | Wife | Housewife | Louisiana |
| 45 | Arthur Watts | 12 | Son | Farm Hand | Louisiana |
| 46 | Irene Watts | 13 | Daughter | — | Louisiana |
| 47 | Robert Jr. Watts | 8 | Son | — | Louisiana |
| 48 | Elda May Watts | 7 | Daughter | — | Louisiana |
| 49 | Edward Watts | 4 | Son | — | Louisiana |
| 50 | Myrtle Watts | 0 | Daughter | — | Louisiana |
| 51 | Frank Martin THIS PERSON | 40 | Head | Farmer | Louisiana |
| 52 | Elda Martin | 42 | Wife | Housewife | Louisiana |
| 53 | Frank Jr. Martin | 18 | Son | — | Louisiana |
| 54 | Mattie Martin | 14 | Daughter | — | Louisiana |
| 55 | Shirley Martin | 12 | Daughter | — | Louisiana |
| 56 | Joseph Martin | 43 | Head | Farmer | Louisiana |
| 57 | Stella Martin | 45 | Wife | Housewife | Louisiana |
| 58 | Ray Martin | 17 | Son | — | Louisiana |
| 59 | Leroy Martin | 17 | Son | — | Louisiana |
| 60 | Albert Martin | 21 | Son | Farmer | Louisiana |
| 61 | Dorothy Martin | 20 | Daughter | — | Louisiana |
| 62 | Wanda Ann Martin | 2 | Daughter | — | Louisiana |
| 63 | Burnice Lanclos | 40 | Head | Farmer | Louisiana |
| 64 | Clarence Lanclos | 23 | Son | Farmer | Louisiana |
| 65 | Lorraine Lanclos | 19 | Daughter | Housewife | Louisiana |
| 66 | Alton Lanclos | 16 | Son | — | Louisiana |
| 67 | Alex Lanclos | 14 | Son | — | Louisiana |
| 68 | Livingston Lanclos | 12 | Son | — | Louisiana |
| 69 | Charles Adam | 71 | Head | — | Louisiana |
| 70 | Charles Jr. Adam | 36 | Head | Farm Hand | Louisiana |
| 71 | Ernestine Adam | 25 | Wife | Housewife | Louisiana |
| 72 | Cramp Smythe | 24 | Head | Farm Hand | Louisiana |
| 73 | Estelle Smythe | 23 | Wife | Housewife | Louisiana |
| 74 | Albert Smythe | 28 | Son | Tractor Operator | Louisiana |
| 75 | Lucille Smythe | 24 | Daughter | Housewife | Louisiana |
| 76 | Nora May Smythe | 16 | Daughter | — | Louisiana |
| 77 | Nell Smythe | 14 | Daughter | — | Louisiana |
| 78 | Robert Smythe | 14 | Son | — | Louisiana |
| 79 | Alfred Smythe | 10 | Son | — | Louisiana |
| 80 | Lucy Smythe | 8 | Daughter | — | Louisiana |
Pedigree Summary
Frank
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
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)