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John Martin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this John Martin across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Dominic & Annie — first a son (b.~1918), then head of a 5-person household.
Age 22
b. ~1918
Male
Son
Born: Rhode Island
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Martin |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| 1935 Residence (City) | Somerville City |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Mill-hand |
| Industry | Wire Mfg. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 450 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
| Occupation | Mill-Hand |
| Township / Ward | Somerville City |
| Est. Birth Year | ~1918 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| Dominic Martin | Head | — | 44 | ~1896 |
| Anthony Martin | Son | — | 23 | ~1917 |
| Manuel Martin | Son | — | 9 | ~1931 |
| John Martin | Son | — | 22 | ~1918 |
| Annie Martin | Spouse | — | 42 | ~1898 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 1
Middlesex, Massachusetts · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
1930
Middlesex, Massachusetts
Son, age 11
Middlesex, Massachusetts · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Marton |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Can Read/Write | Yes |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
1940
Middlesex-County, Massachusetts
Son, age 22
Middlesex-County, Massachusetts · implied b. ~1918 — 5 household members
| Surname | Martin |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| 1935 Residence (City) | Somerville City |
| 1935 Residence (County) | Middlesex |
| Occupation | Mill-hand |
| Industry | Wire Mfg. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 450 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
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 John Martin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Dominic Martin (~0.92 confidence) and mother Annie Martin (~0.92 confidence) and mother Annie Martin (~0.92 confidence) and father Dominick Marton (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Dominic Martin
b. ~1892
Source father
● Household
· direct · ~0.92
Mother
Annie Martin
b. ~1898
Source mother
● Household
· direct · ~0.92
Mother
Annie Martin
b. ~1895
Source mother
● Household
· direct · ~0.92
Father
Dominick Marton
b. ~1897
Source father
● Household
· direct · ~0.92
This person
Anchor record
John Martin
Son · 1940 · age 22 · b. ~1918 · Massachusetts
★ You are viewing this record
Sibling
Anthony Martin
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Manuel Martin
Sibling · 1940 · age 9
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 — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01702-00628)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lucy Ribeiro | 27 | Wife | Shoe Maker | Massachusetts |
| 2 | Gilbert Ribeiro | 4 | Son | — | Massachusetts |
| 3 | Silvino Bernard | 36 | Head | Finisher | Portugal |
| 4 | Mary Bernard | 34 | Wife | Packer | Portugal |
| 5 | Silvino Bernard | 15 | Son | — | Massachusetts |
| 6 | Domingos Vecchiolo | 47 | Head | Last-Puller | Portugal |
| 7 | Adaline Vecchiolo | 40 | Wife | — | Portugal |
| 8 | Dorothy Vecchiolo | 23 | Daughter | New Worker | Massachusetts |
| 9 | Mary Vecchiolo | 21 | Daughter | Kementing | Massachusetts |
| 10 | Ralph Estrella | 26 | Son-in-law | Barber | Portugal |
| 11 | Ernest Roseberg | Rosenberg | 49 | Head | Salesman | Massachusetts |
| 12 | Rose Roseberg | Rosenberg | 45 | Wife | — | Germany |
| 13 | Sylvia Roseberg | Rosenberg | 17 | Daughter | New Worker | Massachusetts |
| 14 | Joseph Rego | 43 | Head | Carpenter | Portugal |
| 15 | Mary Rego | 41 | Wife | — | Portugal |
| 16 | Walter Rego | 18 | Son | — | Massachusetts |
| 17 | Francis Rego | 16 | Son | — | Massachusetts |
| 18 | Joseph Rego | 8 | Son | — | Massachusetts |
| 19 | Stella Rego | 4 | Daughter | — | Massachusetts |
| 20 | Joseph Enos | 38 | Head | Laborer | Massachusetts |
| 21 | Mary Enos | 34 | Wife | — | Massachusetts |
| 22 | Ruth Enos | 14 | Daughter | — | Massachusetts |
| 23 | Eleanor Enos | 11 | Daughter | — | Massachusetts |
| 24 | John Cavallo | 41 | Uncle | Chauffeur | Portugal |
| 25 | Anna Cavallo | 41 | Aunt | — | Massachusetts |
| 26 | Frank Silva | 39 | Head | Packer | Portugal |
| 27 | Mary Silva | 41 | Wife | — | Portugal |
| 28 | Alice Silva | 17 | Daughter | — | Massachusetts |
| 29 | Mary Silva | 11 | Daughter | — | Massachusetts |
| 30 | Dominic Martin | 44 | Head | Machinist | Portugal |
| 31 | Annie Martin | 42 | Wife | Worker | Portugal |
| 32 | Anthony Martin | 23 | Son | Cabinet-Maker | Rhode Island |
| 33 | John Martin THIS PERSON | 22 | Son | Mill-Hand | Rhode Island |
| 34 | Manuel Martin | 9 | Son | — | Massachusetts |
| 35 | Julio Green | 35 | Head | Cabinet-Maker | Portugal |
| 36 | Mary Green | 33 | Wife | — | Portugal |
| 37 | Arlene Green | 12 | Daughter | — | Massachusetts |
| 38 | Edward Green | 10 | Son | — | Massachusetts |
| 39 | Julio Green | 8 | Son | — | Massachusetts |
| 40 | Dennis Welch | 46 | Head | Machine Operator | Maine |
Pedigree Summary
John + 2 siblings
Gen 1 · 4 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)