JM
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 Joseph — first a head (b.~1864), then head of a 2-person household.
Age 76
b. ~1864
Male
Head
Born: England
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Martin |
| Given Name | John W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 76 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Newton Upper Falls |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Retired |
| Industry | Mail Man |
| Class of Worker | OA |
| Income (1939) | 0 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth Country | England |
| Birthplace (normalized) | england |
| Occupation | Retired |
| Township / Ward | Newton Upper Falls |
| Est. Birth Year | ~1864 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Esther Martin | Daughter | — | 44 | ~1896 |
| John Martin | Head | — | 76 | ~1864 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 56
Middlesex, Massachusetts · implied b. ~1864 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | John W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | England |
| Year of Immigration | 1873 |
| Naturalization Status | Naturalized |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Letter Carrier |
| Industry | U S Government |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | England |
| Year of Naturalization | 1874 |
| Birthplace (normalized) | england |
1930
Middlesex, Massachusetts
Head, age 66
Middlesex, Massachusetts · implied b. ~1864 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Martin |
| Given Name | John W |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 66 |
| Marital Status | Married |
| Birthplace | England |
| Naturalization Status | Naturalized |
| Year of Immigration | 1873 |
| Age at First Marriage | 28 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Post Man |
| Industry | Federal |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 10000 |
| Radio Set | R |
| Veteran | No |
| Birth Country | England |
| Birthplace (normalized) | england |
1940
Middlesex-County, Massachusetts
Head, age 76
Middlesex-County, Massachusetts · implied b. ~1864 — 2 household members
| Surname | Martin |
| Given Name | John W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 76 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Newton Upper Falls |
| 1935 Residence (County) | Middlesex |
| Naturalization Status | Naturalized |
| Occupation | Retired |
| Industry | Mail Man |
| Class of Worker | OA |
| Income (1939) | 0 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth Country | England |
| Birthplace (normalized) | england |
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 Joseph Martin (~0.60 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.6
Father
Joseph Martin
b. ~1862
Source father
● Household
· direct · ~0.6
This person
Anchor record
John Martin
Head · 1940 · age 76 · b. ~1864 · Massachusetts
★ You are viewing this record
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-t0627-01615-00586)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Henry Mikkelsen | 22 | Lodger | Painter | Mass |
| 42 | John W. Martin THIS PERSON | 76 | Head | Retired | England |
| 43 | Esther V. Martin | 44 | Daughter | Housework | Mass |
| 44 | Alexander Lagara | 25 | Head | Presser | Mass |
| 45 | Mary Lagara | 24 | Wife | Housework | Mass |
| 46 | Sandra Lagara | 1 | Daughter | — | Mass |
| 47 | John V. Sullivan | 66 | Head | At Home | Mass |
| 48 | Emma F. Sullivan | 65 | Wife | Housework | Rhode Island |
| 49 | Marie B. Sullivan | 38 | Daughter | Secretary | Mass |
| 50 | Joseph F. Sullivan | 37 | Son | Plumber | Mass |
| 51 | William L. Sullivan | 36 | Son | Office Clerk | Mass |
| 52 | Anna C. Sullivan | 33 | Daughter | Office Clerk | Mass |
| 53 | Florence R. Sullivan | 31 | Daughter | Stenographer | Mass |
| 54 | Edward J. Sullivan | 27 | Son | Rubber Worker | Mass |
| 55 | Maude C. Sullivan | 61 | Head | School Teach. | Mass |
| 56 | Annie Sullivan | 71 | Sister | At Home | Mass |
| 57 | Bernice Sullivan | 52 | Sister | Stenographer | Mass |
| 58 | Mary Sullivan | 50 | Sister | Instructor | Mass |
| 59 | John B. Sullivan | 74 | Head | Patrol Water | Mass |
| 60 | Bridget Sullivan | 72 | Wife | Housework | Ireland |
| 61 | John J. Cronin | 47 | Head | Electrician | Mass |
| 62 | Sarah E. Cronin | 45 | Wife | Housework | Mass |
| 63 | Mary G. Cronin | 23 | Daughter | Secretary | Mass |
| 64 | John J. Jr. Cronin | 22 | Son | — | Mass |
| 65 | James P. Cronin | 18 | Son | Student | Mass |
| 66 | James F. Lacey | 38 | Head | Pressman | Mass |
| 67 | Mary M. Lacey | 42 | Wife | Housework | Mass |
| 68 | Leo F. Breslan | 30 | Head | Registered Nurse | Mass |
| 69 | Pearl L. Breslan | 27 | Wife | Housework | Connecticut |
| 70 | Joan Breslan | 7 | Daughter | — | Mass |
| 71 | Breslan | None | — | — | — |
| 72 | Michael J. Cotter | 55 | Head | Street Foreman | Ireland |
| 73 | Ellen A. Cotter | 51 | Wife | Housework | Ireland |
| 74 | Cornelius E. Cotter | 22 | Son | Office Clerk | Mass |
| 75 | Edward Cotter | None | Son | — | — |
| 76 | Margaret E. Cotter | 21 | Daughter | Student | Mass |
| 77 | John F. Cotter | 20 | Son | Student | Mass |
| 78 | Richard Cotter | 16 | Son | Student | Mass |
| 79 | Catherine Cotter | 14 | Daughter | — | Mass |
| 80 | John Pruious|Pruions | 27 | Head | House Man | Mass |
Pedigree Summary
John
Gen 1 · 1 parents
~0.6
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)