JK
John Keefe — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this John Keefe across the 1920 and 1930 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1883), then head of a 6-person household.
Age 47
b. ~1883
Male
Head
Born: Ireland
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Middlesex, Massachusetts |
| Surname | Keefe |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1895 |
| Age at First Marriage | 22 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Engineer |
| Industry | Shoe Polish |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 33.00 |
| Radio Set | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Engineer |
| Township / Ward | Cambridge City |
| Est. Birth Year | ~1883 |
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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Agnes Keefe | Daughter | — | 13 | ~1917 |
| Andrew Keefe | Son | — | 20 | ~1910 |
| John Keefe | Head | — | 47 | ~1883 |
| Susie Keefe | Other | — | 45 | ~1885 |
| John Keefe | Son | — | 16 | ~1914 |
| David Keefe | Son | — | 21 | ~1909 |
Census Appearances
1920
Middlesex, Massachusetts
Head, age 38
Middlesex, Massachusetts · implied b. ~1882 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Keefe |
| Given Name | John J |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1895 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Mason |
| Industry | Road |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Year of Naturalization | 1901 |
| Birthplace (normalized) | ireland |
1930
Middlesex, Massachusetts
Head, age 47
Middlesex, Massachusetts · implied b. ~1883 — 6 household members
| Surname | Keefe |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1895 |
| Age at First Marriage | 22 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Engineer |
| Industry | Shoe Polish |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 33.00 |
| Radio Set | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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 (1920 and 1930) in Middlesex, Massachusetts, using XGBoost record linkage.
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This person
Anchor record
John Keefe
Head · 1930 · age 47 · b. ~1883 · Massachusetts
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Middlesex, Massachusetts
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1930 US Federal Census — Middlesex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1930:massachusettscensus00reel915:0215)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Antoinette Kassolis | 18 | Daughter | — | Massachusetts |
| 2 | Frank L. Kelley | 50 | Head | Laborer | Massachusetts |
| 3 | Mary E. Kelley | 61 | Sister-H | — | Massachusetts |
| 4 | Nellie Kelley | 50 | Wife | Packer | Massachusetts |
| 5 | Helen Kelley | 13 | Daughter | — | Massachusetts |
| 6 | Mary L. Kelley | 10 | Daughter | — | Massachusetts |
| 7 | George Kelley | 7 | Son | — | Massachusetts |
| 8 | Joseph Kortunas | 45 | Head | Carpenter | Lithuania |
| 9 | Stella Kortunas | 35 | Wife-H | — | Lithuania |
| 10 | Stella Jr. Kortunas | 13 | Daughter | — | Massachusetts |
| 11 | Alphonse Kortunas | 4 | Son | — | Massachusetts |
| 12 | John Macelake | 35 | Boarder | Electrician | Lithuania |
| 13 | Joe Bucinskas | 35 | Head | Laborer | Lithuania |
| 14 | Pauline Bucinskas | 30 | Wife-H | — | Lithuania |
| 15 | John Thomas | 34 | Head | Retail-Merchant | Lithuania |
| 16 | Celia Thomas | 22 | Wife-H | Mill Girl | Lithuania |
| 17 | Manuel, S. Rezendes | 34 | Head | Barber | Portugal |
| 18 | Anna A. Rezendes | 37 | Wife-H | — | Portugal |
| 19 | Manuel, S. Jr. Rezendes | 2 | Son | — | Massachusetts |
| 20 | Antonio Rodrigues | 42 | Head | Carpenter | Portugal |
| 21 | Maria Rodrigues | 36 | Wife-H | Stitcher | Portugal |
| 22 | Evelyn Rodrigues | 12 | Daughter | — | Massachusetts |
| 23 | David F. Scannell | 54 | Head | Salesman | Massachusetts |
| 24 | Elizabeth Scannell | 49 | Wife-H | — | Massachusetts |
| 25 | Blanche Scannell | 21 | Daughter | Stenographer | Massachusetts |
| 26 | Mary Scannell | 12 | Daughter | — | Massachusetts |
| 27 | Eunice Scannell | 10 | Daughter | — | Massachusetts |
| 28 | Jeremiah Scannell | 90 | Father | — | Ireland |
| 29 | James Bolger | 37 | Head | Laborer | Massachusetts |
| 30 | Mary Bolger | 33 | Wife-H | — | Massachusetts |
| 31 | Dorothy Bolger | 3 | Daughter | — | Massachusetts |
| 32 | Edward Bolger | 0 | Son | — | Massachusetts |
| 33 | John Keefe THIS PERSON | 47 | Head | Engineer | Ireland |
| 34 | Susie Keefe | 45 | Wife-H | — | Ireland |
| 35 | David A. Keefe | 21 | Son | Truck Driver | Massachusetts |
| 36 | Andrew L. Keefe | 20 | Son | Retail Clerk | Massachusetts |
| 37 | John J. Keefe | 16 | Son | — | Massachusetts |
| 38 | Agnes Keefe | 13 | Daughter | — | Massachusetts |
| 39 | Robert J. Mullen | 57 | Head | Teamster | Massachusetts |
| 40 | Nellie Mullen | 57 | Wife-H | — | Ireland |
| 41 | Joseph A. Mullen | 26 | Son | Fireman | Massachusetts |
| 42 | Helen E. Mullen | 22 | Daughter | Bookkeeper | Massachusetts |
| 43 | Robert J. Jr. Mullen | 19 | Son | Asst. Mgr. | Massachusetts |
| 44 | John A. Mcgrath | 47 | Head | Clerk | Massachusetts |
| 45 | Mary A. Mcgrath | 42 | Wife-H | — | Massachusetts |
| 46 | Edward Mcgrath | 9 | Son | — | Massachusetts |
| 47 | Mary Mcgrath | 5 | Daughter | — | Massachusetts |
| 48 | Anna Mcgrath | 3 | Daughter | — | Massachusetts |
| 49 | Lawrence O'Donnell | 40 | Brother-in-law | Shipper | Massachusetts |
| 50 | James Sidlauskis | 38 | Head | Wire-Maker | Lithuania |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)