JK
John Keefe — 1940 US Census Record
Model Tree available1940 United States Federal Census · Norfolk-County, Massachusetts
Our Model Tree links this John Keefe across the 1920, 1930 and 1940 US Censuses in Norfolk-County, Massachusetts (XGBoost, ~Confirmed), with identified parents James & John — first a son (b.~1908), then head of a 3-person household.
Age 32
b. ~1908
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Norfolk-County, Massachusetts |
| Surname | Keefe |
| Given Name | John A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Brookline |
| 1935 Residence (County) | Norfolk |
| Additional Details | |
| Occupation | Salesman |
| Industry | Insurance Company |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 274 |
| Highest Grade | C 1 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Salesman |
| Township / Ward | Brookline |
| Est. Birth Year | ~1908 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Thomas Keefe | Head | — | 63 | ~1877 |
| John Keefe | Son | — | 32 | ~1908 |
| Katherine Keefe | Spouse | — | 64 | ~1876 |
Census Appearances
1920
Middlesex, Massachusetts
Son, age 11
Middlesex, Massachusetts · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Keefe |
| Given Name | John E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Son, age 21
Middlesex, Massachusetts · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Keefe |
| Given Name | John E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Salesman |
| Industry | Florist |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Norfolk-County, Massachusetts
Son, age 32
Norfolk-County, Massachusetts · implied b. ~1908 — 3 household members
| Surname | Keefe |
| Given Name | John A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Brookline |
| 1935 Residence (County) | Norfolk |
| Occupation | Salesman |
| Industry | Insurance Company |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 274 |
| Highest Grade | C 1 |
| 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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Keefe (~0.92 confidence) and father John Keefe (~0.92 confidence) and father Thomas Keefe (~0.92 confidence) and mother Katherine Keefe (~0.92 confidence) and mother Nora Keefe (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Keefe
b. ~1884
Source father
● Household
· direct · ~0.92
Father
John Keefe
b. ~1870
Source father
● Household
· direct · ~0.92
Father
Thomas Keefe
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Katherine Keefe
b. ~1876
Source mother
● Household
· direct · ~0.92
Mother
Nora Keefe
b. ~1872
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Keefe
Son · 1940 · age 32 · b. ~1908 · 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 — Norfolk-County, Massachusetts
Open full size
1940 US Federal Census — Norfolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01626-00134)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Sadie Barnes | 39 | Wife | — | Canada English |
| 2 | James Barnes | 15 | Son | — | Massachusetts |
| 3 | George B Barnes | 11 | Son | — | Massachusetts |
| 4 | Albert Barnes | 9 | Son | — | Massachusetts |
| 5 | John F. Wheeler | 64 | Head | Janitor | Massachusetts |
| 6 | Helen A. Wheeler | 59 | Wife | — | Massachusetts |
| 7 | Ellen Wheeler | 33 | Daughter | Seamstress | Massachusetts |
| 8 | John Wheeler | 20 | Son | Laborer | Massachusetts |
| 9 | William Durbin | 33 | Son-in-law | Laborer | Massachusetts |
| 10 | Evelyn Durbin | 30 | Daughter | — | Massachusetts |
| 11 | Joan Durbin | 1 | Granddaughter | — | Massachusetts |
| 12 | Mary Durbin | 0 | Granddaughter | — | Massachusetts |
| 13 | S. Roy Komnatzky | 59 | Head | Janitor | Russia |
| 14 | Anna Komnatzky | 49 | Wife | — | Russia |
| 15 | Frances Komnatzky | 19 | Daughter | Waitress | Massachusetts |
| 16 | Helen Komnatzky | 15 | Daughter | — | Massachusetts |
| 17 | Rose Komnatzky | 12 | Daughter | — | Massachusetts |
| 18 | Alexander Sutherland | 64 | Head | Elevator Operator | Massachusetts |
| 19 | Minerva Sutherland | 53 | Wife | — | Massachusetts |
| 20 | Robert C. Robinson | 34 | Head | Laborer | Georgia |
| 21 | Mary M. Robinson | 35 | Wife | — | Massachusetts |
| 22 | Thomas C. Robinson | 14 | Son | — | Massachusetts |
| 23 | Mary A. Robinson | 12 | Daughter | — | Massachusetts |
| 24 | Irene Coyne | 29 | Lodger | Laundress | Massachusetts |
| 25 | Margaret Coyne | 2 | Lodger's Daughter | — | Massachusetts |
| 26 | Edward J. Dempsey | 25 | Head | Auto-Mechanic | Massachusetts |
| 27 | Theresa M. Dempsey | 24 | Wife | — | Massachusetts |
| 28 | Nicholas E. Dempsey | 55 | Father | — | Canada English |
| 29 | Herbert L. Raulks | 45 | Head | Salesman | Rhode Island |
| 30 | Mary E. Raulks | 12 | Daughter | — | Massachusetts |
| 31 | Arthur Raulks | 10 | Son | — | Massachusetts |
| 32 | Thomas Keefe | 63 | Head | Section Man | Vermont |
| 33 | Katherine Keefe | 64 | Wife | — | Eire |
| 34 | John A. Keefe THIS PERSON | 32 | Son | Salesman | Massachusetts |
| 35 | Michael Shaughnessy | 74 | Head | — | Eire |
| 36 | William Shaughnessy | 30 | Head | Chauffeur | Massachusetts |
| 37 | Elizabeth Shaughnessy | 34 | Wife | — | Eire |
| 38 | Elizabeth Shaughnessy | 10 | Daughter | — | Massachusetts |
| 39 | Grace Shaughnessy | 7 | Daughter | — | Massachusetts |
| 40 | Mary Shaughnessy | 3 | Daughter | — | Massachusetts |
Pedigree Summary
John
Gen 1 · 5 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)