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John Keefe — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Rockingham-County, New Hampshire
Our Model Tree links this John Keefe across the 1930 and 1940 US Censuses in Rockingham-County, New Hampshire (XGBoost, ~Confirmed) — first a son (b.~1909), then head of a 5-person household.
Age 31
b. ~1909
Male
Son
Born: New Hampshire
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Rockingham-County, New Hampshire |
| Surname | Keefe |
| Given Name | John H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| 1935 Residence (City) | Portsmouth |
| Additional Details | |
| Occupation | Oil Co. |
| Industry | OA |
| Class of Worker | 0 |
| Highest Grade | No 5 |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
| Occupation | Oil Co. |
| Township / Ward | Portsmouth |
| 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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mary Keefe | Daughter | — | 36 | ~1904 |
| Michel Keefe | Head | — | 62 | ~1878 |
| John Keefe | Son | — | 31 | ~1909 |
| Addline Keefe | Spouse | — | 65 | ~1875 |
| William Keefe | Son | — | 29 | ~1911 |
Census Appearances
1930
Rockingham, New …
Son, age 20
Rockingham, New Hampshire · implied b. ~1910 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Keefe |
| Given Name | John H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Father's Birthplace | New Hampshire |
| Mother's Birthplace | Massachusetts |
| Occupation | Teamster |
| Industry | Teaming |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1940
Rockingham-County, New …
Son, age 31
Rockingham-County, New Hampshire · implied b. ~1909 — 5 household members
| Surname | Keefe |
| Given Name | John H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| 1935 Residence (City) | Portsmouth |
| Occupation | Oil Co. |
| Industry | OA |
| Class of Worker | 0 |
| Highest Grade | No 5 |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
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 31 · b. ~1909 · New Hampshire
★ You are viewing this record
Sibling
William Keefe
Sibling · 1940 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Keefe
Sibling · 1940 · age 36
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 — Rockingham-County, New Hampshire
Open full size
1940 US Federal Census — Rockingham-County, New Hampshire
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02296-00334)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mildred F. Mcdaniel | 11 | Daughter | — | New Hampshire |
| 42 | John F. Mcdaniel | 4 | Son | — | New Hampshire |
| 43 | Joane E. Mcdaniel | 2 | Daughter | — | New Hampshire |
| 44 | Michel J. Keefe | 62 | Head | At Factory | New Hampshire |
| 45 | Addline F. Keefe | 65 | Wife | — | Massachusetts |
| 46 | Mary L. Keefe | 36 | Daughter | Shoe Factory | New Hampshire |
| 47 | John H. Keefe THIS PERSON | 31 | Son | Oil Co. | New Hampshire |
| 48 | William Keefe | 29 | Son | Grocery Store | New Hampshire |
| 49 | Joseph Lamontagne | 47 | Head | Navy Yard | Canada |
| 50 | Edwidge A. Lamontagne | 45 | Wife | — | New Hampshire |
| 51 | Dorothy Hill | 23 | Daughter | Shoe Factory | Canada |
| 52 | Rogers A. Hill | 20 | Son | Shoe Factory | New Hampshire |
| 53 | Robert D. Hill | 17 | Son | 0 | New Hampshire |
| 54 | Endmon A. Hill | 15 | Son | 0 | New Hampshire |
| 55 | Gloria P. Hill | 8 | Daughter | — | New Hampshire |
| 56 | Madlen Lamontagne | 21 | Daughter | Shoe Factory | New Hampshire |
| 57 | Richard S. Lamontagne | 6 | Son | — | New Hampshire |
| 58 | Benjamin Boxer | 35 | Head | Proprietor | Russia |
| 59 | Bertha Boxer | 23 | Wife | — | Massachusetts |
| 60 | Neil P. Planted | 24 | Head | Restaurant | Maine |
| 61 | Ellen L. Planted | 21 | Wife | — | Maine |
| 62 | Kerry P. Planted | 1 | Son | — | New Hampshire |
| 63 | Burton A. Tucker | 35 | Head | Kitchen Man | Canada |
| 64 | Hilda L. Tucker | 26 | Wife | — | Massachusetts |
| 65 | Evelyn M. Tucker | 6 | Daughter | — | Massachusetts |
| 66 | Joseph W. Beerman | 35 | Head | Electrician | Massachusetts |
| 67 | Mildred A. Beerman | 34 | Wife | — | Massachusetts |
| 68 | Edward J. Beerman | 8 | Son | — | Massachusetts |
| 69 | Paul R. Beerman | 1 | Son | — | New Hampshire |
| 70 | Rita M. Merrick | 52 | Head | 0 | New Hampshire |
| 71 | Katherine M. Hill | 67 | Head | 0 | New Hampshire |
| 72 | Ida Caswell Sweetser | 72 | Step Mother | — | New Hampshire |
| 73 | Caswell H. Sweetser | 42 | Brother | Portsmouth Navy Yard | New Hampshire |
| 74 | Todd Alberta | 36 | Sister | 0 | Massachusetts |
| 75 | Patricia Alberta | 1 | Niece | — | New Hampshire |
| 76 | Ellen F. Locke | 71 | Lodger | — | New Hampshire |
| 77 | Louis Broadbard | 32 | Head | At Grocery | Russia |
| 78 | Esther Broadbard | 33 | Wife | — | New Hampshire |
| 79 | Leland Broadbard | 11 | Son | — | New Hampshire |
| 80 | Roberta Broadbard | 8 | Daughter | — | New Hampshire |
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)