LM
Louis Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Bristol-County, Massachusetts
Our Model Tree links this Louis Martin across the 1930 and 1940 US Censuses in Bristol-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1924), then head of a 8-person household.
Age 16
b. ~1924
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Bristol-County, Massachusetts |
| Surname | Martin |
| Given Name | Louis S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | New Bedford City |
| 1935 Residence (County) | Bristol |
| Additional Details | |
| Occupation | Roofer |
| Industry | General Contractor |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 350 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Roofer |
| Township / Ward | New Bedford City |
| Est. Birth Year | ~1924 |
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 Louis | Age | Birth yr |
|---|---|---|---|---|
| Norma Martin | Daughter | — | 19 | ~1921 |
| Louis Martin | Son | — | 16 | ~1924 |
| Elsie Martin | Daughter | — | 18 | ~1922 |
| John Martin | Son | — | 12 | ~1928 |
| Dorothy Martin | Daughter | — | 11 | ~1929 |
| Hilda Martin | Daughter | — | 14 | ~1926 |
| Mary Martin | Head | — | 49 | ~1891 |
| Mary Martin | Daughter | — | 25 | ~1915 |
Census Appearances
1930
Bristol, Massachusetts
Son, age 5
Bristol, Massachusetts · implied b. ~1925 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Louis |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Occupation | none |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Bristol-County, Massachusetts
Son, age 16
Bristol-County, Massachusetts · implied b. ~1924 — 8 household members
| Surname | Martin |
| Given Name | Louis S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | New Bedford City |
| 1935 Residence (County) | Bristol |
| Occupation | Roofer |
| Industry | General Contractor |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 350 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
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 Louis Martin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Louis Martin
Son · 1940 · age 16 · b. ~1924 · Massachusetts
★ You are viewing this record
Sibling
Elsie Martin
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Martin
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Martin
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Norma Martin
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Martin
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hilda Martin
Sibling · 1940 · age 14
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 — Bristol-County, Massachusetts
Open full size
1940 US Federal Census — Bristol-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01698-00755)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary Conti | 15 | Daughter | — | Rhode Island |
| 2 | Antone Silva | 41 | Head | — | Portugal |
| 3 | Julia Silva | 40 | Wife | — | Portugal |
| 4 | Lillian Silva | 16 | Daughter | — | Massachusetts |
| 5 | Joseph E. Silva | 12 | Son | — | Massachusetts |
| 6 | Mary S. Martin | 49 | Head | — | Portugal |
| 7 | Mary S. Martin | 25 | Daughter | — | Massachusetts |
| 8 | Norma S. Martin | 19 | Daughter | Power Sewing Machine Operator | Massachusetts |
| 9 | Elsie S. Martin | 18 | Daughter | New Worker | Massachusetts |
| 10 | Louis S. Martin THIS PERSON | 16 | Son | Roofer | Massachusetts |
| 11 | Hilda S. Martin | 14 | Daughter | — | Massachusetts |
| 12 | John S. Martin | 12 | Son | — | Massachusetts |
| 13 | Dorothy S. Martin | 11 | Daughter | — | Massachusetts |
| 14 | Thomas Klanovick | 37 | Head | Warp-Twister | Massachusetts |
| 15 | Leona H. Klanovick | 24 | Wife | Quiller Tender | Massachusetts |
| 16 | Theresa M. Roux | 13 | Daughter-in-law | — | Massachusetts |
| 17 | Leona S. Hennes | 67 | Mother-in-law | — | Canada-French |
| 18 | Mary C. Medeiros | 44 | Head | — | Portugal |
| 19 | Antone S. Medeiros | 23 | Son | Sweeper | Massachusetts |
| 20 | Emelia S. Medeiros | 17 | Daughter | New Worker | Massachusetts |
| 21 | Frank C. Medeiros | 13 | Son | — | Massachusetts |
| 22 | Adolph C. Medeiros | 12 | Son | — | Massachusetts |
| 23 | Gilbert C. Medeiros | 11 | Son | — | Massachusetts |
| 24 | Bertha C. Medeiros | 3 | Daughter | — | Massachusetts |
| 25 | Louis C. De Rego | 32 | Head | Barber | Massachusetts |
| 26 | Mary De Rego | 31 | Wife | — | Massachusetts |
| 27 | Mary S. De Rego | 4 | Daughter | — | Massachusetts |
| 28 | David J. De Rego | 2 | Son | — | Massachusetts |
| 29 | Felisberto S. Andre | 41 | Head | Porter | Portugal |
| 30 | Mary S. Andre | 45 | Wife | — | Portugal |
| 31 | Mary A. Andre | 22 | Daughter | Power Sewing Machine Operator | Massachusetts |
| 32 | Alfred Andre | 15 | Son | Dairy Helper | Massachusetts |
| 33 | Aldina Andre | 11 | Daughter | — | Massachusetts |
| 34 | Irene S. Andre | 8 | Daughter | — | Massachusetts |
| 35 | Mary C. Costa | 44 | Head | — | Portugal |
| 36 | Joseph Costa | 24 | Son | Auto-Mechanic | Massachusetts |
| 37 | Clair Costa | 22 | Daughter | Power Sewing Machine Operator | Massachusetts |
| 38 | Antone Costa | 19 | Son | New Worker | Massachusetts |
| 39 | Mary Costa | 15 | Daughter | Table-Girl | Massachusetts |
| 40 | Gloria Costa | 16 | Daughter | New Worker | Massachusetts |
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)