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Herbert Martin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Herbert Martin across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1916), then head of a 7-person household.
Age 24
b. ~1916
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Martin |
| Given Name | Herbert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Somerville City |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Chauffeur |
| Industry | Coal Business |
| Class of Worker | P W |
| Hours Worked | 40 |
| Income (1939) | 1400 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Chauffeur |
| Township / Ward | Somerville City |
| Est. Birth Year | ~1916 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Herbert | Age | Birth yr |
|---|---|---|---|---|
| Daniel Martin | Head | — | 43 | ~1897 |
| Ruth Martin | Daughter | — | 20 | ~1920 |
| Richard Martin | Son | — | 13 | ~1927 |
| Grace Martin | Spouse | — | 38 | ~1902 |
| Charles Martin | Son | — | 15 | ~1925 |
| Herbert Martin | Son | — | 24 | ~1916 |
| Donald Martin | Son | — | 25 | ~1915 |
Census Appearances
1930
Middlesex, Massachusetts
Son, age 14
Middlesex, Massachusetts · implied b. ~1916 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | Herbert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Canada English |
| Mother's Birthplace | New York |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 24
Middlesex-County, Massachusetts · implied b. ~1916 — 7 household members
| Surname | Martin |
| Given Name | Herbert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Somerville City |
| 1935 Residence (County) | Middlesex |
| Occupation | Chauffeur |
| Industry | Coal Business |
| Class of Worker | P W |
| Hours Worked | 40 |
| Income (1939) | 1400 |
| Highest Grade | Hs 4 |
| 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 Herbert Martin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Herbert Martin
Son · 1940 · age 24 · b. ~1916 · Massachusetts
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Sibling
Richard Martin
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Martin
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Martin
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Martin
Sibling · 1940 · age 25
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-t0627-01702-00237)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Hilla Webb | 40 | Lodger | Teacher | Canada English |
| 2 | Mary Hennessey | 59 | Lodger | Saleswoman | Canada English |
| 3 | Carrie Morgan | 75 | Head | — | Massachusetts |
| 4 | Alice Morgan | 51 | Daughter | Teacher | Massachusetts |
| 5 | Louis Brooks | 69 | Head | Foreman | Canada English |
| 6 | Alice Brooks | 55 | Wife | — | Canada English |
| 7 | Ronald Brooks | 25 | Son | Agent | Canada English |
| 8 | Blanche Brooks | 21 | Daughter | Secretary | Canada English |
| 9 | Audrey Brooks | 19 | Daughter | Book-Keeper | Canada English |
| 10 | Claire Brooks | 18 | Daughter | — | Canada English |
| 11 | — | None | — | — | — |
| 12 | — | None | — | — | — |
| 13 | John Burns | 38 | Head | Supervisor | Massachusetts |
| 14 | Margaret Burns | 39 | Wife | — | Massachusetts |
| 15 | Teresa Burns | 13 | Daughter | — | Massachusetts |
| 16 | Mary Burns | 11 | Daughter | — | Massachusetts |
| 17 | John Burns | 10 | Son | — | Massachusetts |
| 18 | Robert Burns | 9 | Son | — | Massachusetts |
| 19 | Edward Burns | 6 | Son | — | Massachusetts |
| 20 | Alice Burns | 5 | Daughter | — | Massachusetts |
| 21 | Paul Burns | 3 | Son | — | Massachusetts |
| 22 | {Absent Household} | None | — | — | — |
| 23 | — | None | — | — | — |
| 24 | — | None | — | — | — |
| 25 | — | None | — | — | — |
| 26 | — | None | — | — | — |
| 27 | — | None | — | — | — |
| 28 | — | None | — | — | — |
| 29 | — | None | — | — | — |
| 30 | Herbert Hubbard | 47 | Head | Chauffeur | Massachusetts |
| 31 | Lena Hubbard | 46 | Wife | — | Canada English |
| 32 | Earl Hubbard | 12 | Son | — | Massachusetts |
| 33 | Daniel Martin | 43 | Head | — | Canada English |
| 34 | Grace Martin | 38 | Wife | — | New York |
| 35 | Donald Martin | 25 | Son | Laborer | Massachusetts |
| 36 | Herbert Martin THIS PERSON | 24 | Son | Chauffeur | Massachusetts |
| 37 | Ruth Martin | 20 | Daughter | Dipper | Massachusetts |
| 38 | Charles Martin | 15 | Son | — | Massachusetts |
| 39 | Richard Martin | 13 | Son | — | Massachusetts |
| 40 | John Gullens | 52 | Head | Meat Cutter | Turkey |
Related Census Records
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)