LM
Louise Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Clair-County, Alabama
Our Model Tree links this Louise Martin across the 1930 and 1940 US Censuses in St.-Clair-County, Alabama (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 10-person household.
Age 17
b. ~1923
Female
Daughter
Born: Alabama
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Clair-County, Alabama |
| Surname | Martin |
| Given Name | Louise |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Beat 4 |
| 1935 Residence (County) | St. Clair |
| Additional Details | |
| Industry | Home |
| Class of Worker | H |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same Place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
| Township / Ward | Beat 4 |
| Est. Birth Year | ~1923 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Louise | Age | Birth yr |
|---|---|---|---|---|
| Betty Martin | Daughter | — | 5 | ~1935 |
| James Martin | Head | — | 50 | ~1890 |
| Jacquline Martin | Daughter | — | 13 | ~1927 |
| Era Martin | Daughter | — | 20 | ~1920 |
| Porter Martin | Son | — | 7 | ~1933 |
| Howard Martin | Son | — | 15 | ~1925 |
| Jenner Martin | Spouse | — | 49 | ~1891 |
| Earl Martin | Son | — | 11 | ~1929 |
| Louise Martin | Daughter | — | 17 | ~1923 |
| James Martin | Son | — | 18 | ~1922 |
Census Appearances
1930
St Clair, …
Daughter, age 7
St Clair, Alabama · implied b. ~1923 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Louise |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Alabama |
| Father's Birthplace | Alabama |
| Mother's Birthplace | Alabama |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
1940
St.-Clair-County, Alabama
Daughter, age 17
St.-Clair-County, Alabama · implied b. ~1923 — 10 household members
| Surname | Martin |
| Given Name | Louise |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Alabama |
| 1935 Residence (City) | Beat 4 |
| 1935 Residence (County) | St. Clair |
| Industry | Home |
| Class of Worker | H |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same Place |
| Birth State | Alabama |
| Birth Country | United States |
| Birthplace (normalized) | alabama |
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 Louise Martin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Louise Martin
Daughter · 1940 · age 17 · b. ~1923 · Alabama
★ You are viewing this record
Sibling
Betty Martin
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Martin
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Howard Martin
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Earl Martin
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Porter Martin
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Era Martin
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jacquline Martin
Sibling · 1940 · age 13
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 — St.-Clair-County, Alabama
Open full size
1940 US Federal Census — St.-Clair-County, Alabama
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00078-00153)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Sam Harmon | 14 | Head | Farmer | Alabama |
| 2 | Alfred H. Olive | 63 | Head | Farmer | North Carolina |
| 3 | Ada W. Olive | 55 | Wife | — | Alabama |
| 4 | Jimmie Sullens | 24 | Head | Laborer | Alabama |
| 5 | Will E. D. Moss | 29 | Head | Laborer | Alabama |
| 6 | Marie Moss | 24 | Wife | — | Alabama |
| 7 | Charles S. Sullivan | 45 | Head | Farmer | Alabama |
| 8 | Ellie S. Sullivan | 39 | Wife | — | Alabama |
| 9 | James S. Sullivan | 20 | Son | Chainman | Alabama |
| 10 | Ray Sullivan | 17 | Son | Laborer | Alabama |
| 11 | Ruth Sullivan | 15 | Daughter | — | Alabama |
| 12 | Sarah Nell Sullivan | 5 | Daughter | — | Alabama |
| 13 | Ralph Sullivan | 1 | Son | — | Alabama |
| 14 | George Nolin | 65 | Head | Farmer | Alabama |
| 15 | George Jr. Nolin | 18 | Son | Laborer | Alabama |
| 16 | Bessie S. Nolin | 16 | Daughter | — | Alabama |
| 17 | Amalie Nolin | 7 | Daughter | — | Alabama |
| 18 | George A. Calley | 62 | Head | Farmer | Alabama |
| 19 | Henry Calley | 17 | Son | Farmer | Alabama |
| 20 | Thomas Barnes | 21 | Son in law | Laborer | Alabama |
| 21 | Affie Bell Barnes | 20 | Daughter | — | Alabama |
| 22 | Delores Barnes | 3 | Granddaughter | — | Alabama |
| 23 | Ray Barnes | 1 | Grandson | — | Alabama |
| 24 | Vincenzo Di Carlo | 69 | Head | — | Italy |
| 25 | Thomas J. Martin | 26 | Head | Farmer | Alabama |
| 26 | Bessie R. Martin | 25 | Wife | — | Alabama |
| 27 | James T. Martin | 4 | Son | — | Alabama |
| 28 | Shirley Ann Martin | 2 | Daughter | — | Alabama |
| 29 | James B. Martin | 50 | Head | Farmer | Alabama |
| 30 | Jenner Martin | 49 | Wife | — | Alabama |
| 31 | Era S. Martin | 20 | Daughter | — | Alabama |
| 32 | James B. Jr. Martin | 18 | Son | — | Alabama |
| 33 | Louise Martin THIS PERSON | 17 | Daughter | — | Alabama |
| 34 | Howard Martin | 15 | Son | — | Alabama |
| 35 | Jacquline Martin | 13 | Daughter | — | Alabama |
| 36 | Earl Martin | 11 | Son | — | Alabama |
| 37 | Porter Lee Martin | 7 | Son | — | Alabama |
| 38 | Betty Sue Martin | 5 | Daughter | — | Alabama |
| 39 | Cornnie Finley | 55 | Head | Farmer | Alabama |
| 40 | Millie Mae Finley | 45 | Wife | — | Alabama |
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)