LM
Louis Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Bronx-County, New York
Our Model Tree links this Louis Martin across the 1920, 1930 and 1940 US Censuses in Bronx-County, New York (XGBoost, ~Confirmed) — first a head (b.~1900), then head of a 3-person household.
Age 40
b. ~1900
Male
Head
Born: Porto Rico
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Bronx-County, New York |
| Surname | Martin |
| Given Name | Louis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Porto Rico |
| 1935 Residence (City) | Bronx |
| Naturalization Status | Alien |
| Additional Details | |
| Occupation | Mail Carrier |
| Industry | Post Office |
| Class of Worker | GW |
| Hours Worked | 4 |
| Income (1939) | 2000 |
| Highest Grade | No 8 |
| 1935 Residence | New York |
| Birthplace (normalized) | porto rico |
| Occupation | Mail Carrier |
| Township / Ward | Bronx |
| 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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Louis | Age | Birth yr |
|---|---|---|---|---|
| Frances Martin | Spouse | — | 37 | ~1903 |
| Louis Martin | Head | — | 40 | ~1900 |
| Louis Martin | Son | — | 19 | ~1921 |
Census Appearances
1920
Wayne, Michigan
Other, age 18
Wayne, Michigan · implied b. ~1902 — 50 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Louis |
| Relationship to Head | Lodger |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Porto Rico |
| Year of Immigration | 1915 |
| Father's Birthplace | Porto Rico |
| Mother's Birthplace | Porto Rico |
| Occupation | Laborer |
| Industry | Coal Yard |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Spanish |
| Birthplace (normalized) | porto rico |
1930
New York, …
Head, age 30
New York, New York · implied b. ~1900 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Louis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Porto Rico |
| Naturalization Status | Naturalized |
| Year of Immigration | 1916 |
| Age at First Marriage | 20 |
| Father's Birthplace | Porto Rico |
| Mother's Birthplace | Porto Rico |
| Occupation | Clerk |
| Industry | Post Office |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | Spanish |
| Home Owned/Rented | R |
| Home Value / Rent | 35 |
| Radio Set | R |
| Veteran | No |
| Birthplace (normalized) | porto rico |
1940
Bronx-County, New …
Head, age 40
Bronx-County, New York · implied b. ~1900 — 3 household members
| Surname | Martin |
| Given Name | Louis |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Porto Rico |
| 1935 Residence (City) | Bronx |
| Naturalization Status | Alien |
| Occupation | Mail Carrier |
| Industry | Post Office |
| Class of Worker | GW |
| Hours Worked | 4 |
| Income (1939) | 2000 |
| Highest Grade | No 8 |
| 1935 Residence | New York |
| Birthplace (normalized) | porto rico |
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 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
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This person
Anchor record
Louis Martin
Head · 1940 · age 40 · b. ~1900 · New York
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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 — Bronx-County, New York
Open full size
1940 US Federal Census — Bronx-County, New York
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02462-00357)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Catherine Waldron | 20 | Daughter | Typist | New York |
| 42 | John Waldron | 18 | Son | Laborer | New York |
| 43 | Rose Wurf | 60 | Head | — | Austria |
| 44 | Irving Wurf | 22 | Son | Clerk | New York |
| 45 | Louis Martin THIS PERSON | 40 | Head | Mail Carrier | Porto Rico |
| 46 | Frances Martin | 37 | Wife | — | Porto Rico |
| 47 | Louis Jr. Martin | 19 | Son | — | On the U. S. Army |
| 48 | Elizabeth Nolan | 44 | Head | Housework | New York |
| 49 | Albert Nolan | 17 | Son | Messenger | New York |
| 50 | Katherine Reed | 66 | Lodger | — | Illinois |
| 51 | Cornelius O'Keefe | 38 | Head | Conductor | Irish Free State |
| 52 | Ann O'Keefe | 37 | Wife | — | Irish Free State |
| 53 | John O'Keefe | 7 | Son | — | New York |
| 54 | Margaret O'Keefe | 4 | Daughter | — | New York |
| 55 | Cornelius Jr. O'Keefe | 0 | Son | — | New York |
| 56 | Carlo Caviglia | 29 | Head | Laborer | Italy |
| 57 | Alice Caviglia | 31 | Wife | — | New York |
| 58 | Antoinette Caviglia | 2 | Daughter | — | New York |
| 59 | Frank Rampulla | 57 | Head | Fur Blender | Italy |
| 60 | Josephine Rampulla | 58 | Wife | — | Italy |
| 61 | Daniel Rampulla | 22 | Son | New Worker | New York |
| 62 | William Rampulla | 18 | Son | Tailor | New York |
| 63 | Elvira Rampulla | 16 | Daughter | — | New York |
| 64 | Helen Counihan | 33 | Head | Tailor | Turkey |
| 65 | Paul Counihan | 17 | Son | — | New York |
| 66 | Irene Counihan | 15 | Daughter | — | New York |
| 67 | Jerry Alfano | 62 | Head | — | Italy |
| 68 | John Alfano | 26 | Son | Fur Dyer | New York |
| 69 | Mary Alfano | 25 | Daughter | Needle Craft | New York |
| 70 | Thomas Alfano | 27 | Son | Laborer | New York |
| 71 | John Mcbride | 44 | Head | Laborer | New York |
| 72 | Harold Mcbride | 23 | Son | Laborer | New York |
| 73 | John Mcbride | 22 | Son | Office Boy | New York |
| 74 | Margaret Mcbride | 20 | Daughter | — | New York |
| 75 | William Mcbride | 19 | Son | Laborer | New York |
| 76 | Irene Mcbride | 16 | Daughter | — | New York |
| 77 | John Frank | 11 | Nephew | — | New York |
| 78 | Margaret Lynch | 40 | Head | Marking | New York |
| 79 | Isabel Ford | 71 | Partner | — | Connecticut |
| 80 | Walter Miskins | 47 | Head | — | Russia |
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)