JK
John Keefe — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this John Keefe across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1916), then head of a 9-person household.
Age 24
b. ~1916
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Keefe |
| Given Name | John W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston city |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | Teller |
| Industry | Savings Bank |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1800 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Teller |
| Township / Ward | Boston 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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Keefe | Daughter | — | 17 | ~1923 |
| John Keefe | Son | — | 24 | ~1916 |
| Leo Keefe | Son | — | 14 | ~1926 |
| Harry Keefe | Son | — | 22 | ~1918 |
| Margaret Keefe | Daughter | — | 20 | ~1920 |
| Mary Keefe | Spouse | — | 54 | ~1886 |
| Francis Keefe | Son | — | 25 | ~1915 |
| Francis Keefe | Head | — | 54 | ~1886 |
| Theresa Macdonald | Other | — | 55 | ~1885 |
Census Appearances
1930
Suffolk, Massachusetts
Son, age 13
Suffolk, Massachusetts · implied b. ~1917 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Keefe |
| Given Name | John W |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Son, age 24
Suffolk-County, Massachusetts · implied b. ~1916 — 9 household members
| Surname | Keefe |
| Given Name | John W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston city |
| 1935 Residence (County) | Suffolk |
| Occupation | Teller |
| Industry | Savings Bank |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1800 |
| 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 Keefe across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Keefe
Son · 1940 · age 24 · b. ~1916 · Massachusetts
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Sibling
Francis Keefe
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harry Keefe
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Keefe
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Keefe
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leo Keefe
Sibling · 1940 · age 14
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
35 people indexed on this census page (nara:1940:m-t0627-01680-00642)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lillian Brooks | 58 | Head | — | Rhode Island |
| 2 | George Murray | 39 | Head | Funeral Director | Massachusetts |
| 3 | Anna Murray | 22 | Wife | — | Massachusetts |
| 4 | Loretta Murray | 3 | Daughter | — | Massachusetts |
| 5 | Patrick Murray | 1 | Son | — | Massachusetts |
| 8 | Francis Keefe | 54 | Head | Manager | Massachusetts |
| 9 | Mary F. Keefe | 54 | Wife | — | Massachusetts |
| 10 | Francis Keefe | 25 | Son | Agent | Massachusetts |
| 11 | John W. Keefe THIS PERSON | 24 | Son | Teller | Massachusetts |
| 12 | Harry J. Keefe | 22 | Son | — | Massachusetts |
| 13 | Margaret Keefe | 20 | Daughter | — | Massachusetts |
| 14 | Elizabeth Keefe | 17 | Daughter | — | Massachusetts |
| 15 | Leo G. Keefe | 14 | Son | — | Massachusetts |
| 16 | Theresa Macdonald | 55 | Maid | House Maid | Canada English |
| 17 | Daniel F. Keefe | 39 | Head | Buyer | Massachusetts |
| 18 | Margaret Keefe | 34 | Wife | — | Massachusetts |
| 19 | Donald Keefe | 11 | Son | — | Massachusetts |
| 20 | Joan Keefe | 10 | Daughter | — | Massachusetts |
| 21 | Marjorie Keefe | 8 | Daughter | — | Massachusetts |
| 22 | Philip Keefe | 7 | Son | — | Massachusetts |
| 23 | Paul Keefe | 5 | Son | — | Massachusetts |
| 24 | Daniel P. Kelley | 51 | Head | Civil Engineer | Massachusetts |
| 25 | Francis Kelley | 20 | Son | Civil Engineer | Massachusetts |
| 26 | John J. Harrington | 35 | Head | Salesman | Massachusetts |
| 30 | Herbert Plimpton | 45 | Head | — | Massachusetts |
| 31 | Miriam Plimpton | 40 | Wife | — | Massachusetts |
| 32 | Donald Plimpton | 14 | Son | — | Massachusetts |
| 33 | Walter Plimpton | 4 | Son | — | Massachusetts |
| 34 | Margaret Quinn | 73 | Head | — | Massachusetts |
| 35 | George Burke | 46 | Son-in-law | Custom Officer | Massachusetts |
| 36 | Loretta Burke | 46 | Wife | — | Massachusetts |
| 37 | William M. Boyark | 66 | Head | Manager | Massachusetts |
| 38 | Edith Boyark | 67 | Wife | — | Massachusetts |
| 39 | Olive Boyark | 42 | Daughter | — | Massachusetts |
| 40 | Cyrus Corliss | 60 | Head | Engineer | Massachusetts |
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)