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John Doherty — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this John Doherty across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1909), then head of a 11-person household.
Age 31
b. ~1909
Male
Son
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Doherty |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston city |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | Driller |
| Industry | Navy Yard |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 480 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Driller |
| Township / Ward | Boston City |
| Est. Birth Year | ~1909 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Martha Doherty | Head | — | 47 | ~1893 |
| Leonard Doherty | Son | — | 11 | ~1929 |
| Elizabeth Ahern | Other | — | 55 | ~1885 |
| Margaret Doherty | Daughter | — | 24 | ~1916 |
| James Doherty | Son | — | 13 | ~1927 |
| Jennie Ahern | Other | — | 44 | ~1896 |
| John Doherty | Son | — | 31 | ~1909 |
| Joseph Doherty | Son | — | 21 | ~1919 |
| Alice Doherty | Daughter | — | 19 | ~1921 |
| Mary Doherty | Daughter | — | 29 | ~1911 |
| Claire Doherty | Daughter | — | 5 | ~1935 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 21
Suffolk, Massachusetts · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Doherty |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Northern Ireland |
| Mother's Birthplace | Northern Ireland |
| Occupation | Laborer |
| Industry | City of Boston |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 31
Suffolk-County, Massachusetts · implied b. ~1909 — 11 household members
| Surname | Doherty |
| Given Name | John |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston city |
| 1935 Residence (County) | Suffolk |
| Occupation | Driller |
| Industry | Navy Yard |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 480 |
| 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 John Doherty across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Doherty
Son · 1940 · age 31 · b. ~1909 · Massachusetts
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Sibling
Joseph Doherty
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Doherty
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Doherty
Sibling · 1940 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Claire Doherty
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Doherty
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leonard Doherty
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Doherty
Sibling · 1940 · age 13
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 — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
26 people indexed on this census page (nara:1940:m-t0627-01659-00191)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 2 | Helen Connorston | 63 | lodger | Copy Reader | Massachusetts |
| 3 | Concetti Gargaro | 23 | daughter | Floor Girl | Massachusetts |
| 5 | Irene Taylor | 10 | daughter | — | Massachusetts |
| 7 | William O'Donnell | 30 | lodger | Clerk | Massachusetts |
| 8 | Esther O'Donnell | 22 | lodger | — | Massachusetts |
| 9 | Raymond Squires | 23 | lodger | Grocery Clerk | Massachusetts |
| 10 | Clara Parker | 66 | lodger | — | Vermont |
| 12 | Albert Mayhew | 15 | son | — | Massachusetts |
| 14 | Steven Uscoulia | 63 | Father in law | — | Greece |
| 15 | Ernest Uscoulia | 20 | son in law | Laborer | Massachusetts |
| 16 | John Uscoulia | 17 | brother in law | — | Massachusetts |
| 18 | Placido Calvanio | 72 | Head | — | Italy |
| 19 | Mary Calvanio | 61 | wife | — | Italy |
| 20 | Angeline Calvanio | 25 | daughter | Baker | Massachusetts |
| 22 | Martha Doherty | 47 | Head | — | Massachusetts |
| 23 | John Doherty THIS PERSON | 31 | son | Driller | Massachusetts |
| 24 | Mary Doherty | 29 | daughter | Housework | Massachusetts |
| 25 | Margaret Doherty | 24 | daughter | Telephone Operator | Massachusetts |
| 26 | Joseph Doherty | 21 | son | Helper | Massachusetts |
| 27 | Alice Doherty | 19 | daughter | Packer | Massachusetts |
| 28 | James Doherty | 13 | son | — | Massachusetts |
| 29 | Leonard Doherty | 11 | son | — | Massachusetts |
| 30 | Claire Doherty | 5 | daughter | — | Massachusetts |
| 31 | Elizabeth Ahern | 55 | sister | Forelady | Massachusetts |
| 32 | Jennie Ahern | 44 | sister | Packer | Massachusetts |
| 34 | Frank B. Pesce | 35 | Brother | Seaman | Mass. |
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)