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John Regan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this John Regan across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a head (b.~1901), then head of a 7-person household.
Age 39
b. ~1901
Male
Head
Born: Massachusetts
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Regan |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Newton Upper Falls |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | Chauffeur |
| Industry | Dyeing Tapes |
| Class of Worker | PW |
| Hours Worked | 75 |
| Income (1939) | 1250 |
| Highest Grade | Hs 1 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Chauffeur |
| Township / Ward | Newton Upper Falls |
| Est. Birth Year | ~1901 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Helen Regan | Spouse | — | 39 | ~1901 |
| John Regan | Head | — | 39 | ~1901 |
| Eleanor Regan | Daughter | — | 12 | ~1928 |
| Richard Regan | Son | — | 8 | ~1932 |
| Paul Regan | Son | — | 11 | ~1929 |
| John Regan | Son | — | 15 | ~1925 |
| Robert Regan | Son | — | ~1940 |
Census Appearances
1930
Middlesex, Massachusetts
Head, age 28
Middlesex, Massachusetts · implied b. ~1902 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Reagan |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| Age at First Marriage | 22 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | Chauffeur |
| Industry | Grocery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 35 |
| Radio Set | R |
| Veteran | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Head, age 39
Middlesex-County, Massachusetts · implied b. ~1901 — 7 household members
| Surname | Regan |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Newton Upper Falls |
| 1935 Residence (County) | Middlesex |
| Occupation | Chauffeur |
| Industry | Dyeing Tapes |
| Class of Worker | PW |
| Hours Worked | 75 |
| Income (1939) | 1250 |
| Highest Grade | Hs 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 Regan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Regan
Head · 1940 · age 39 · b. ~1901 · Massachusetts
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01615-00573)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frederick Fontannay | 40 | Head | Rubber Worker | Massachusetts |
| 2 | Alice Fontannay | 36 | Wife | — | Massachusetts |
| 3 | Frederick L. Fontannay | 8 | Son | — | Massachusetts |
| 4 | Ann Fontannay | 4 | Daughter | — | Massachusetts |
| 5 | Thomas E. Leach | 77 | Head | Mechanic | Massachusetts |
| 6 | Celsie Leach | 28 | Niece | Part Time Clerk | New Jersey |
| 7 | William H. Kirivan | 68 | Head | Custodian | Massachusetts |
| 8 | Anna E. Kirivan | 66 | Wife | — | Massachusetts |
| 9 | Margaret E. Kirivan | 30 | Daughter | Clerical Work | Massachusetts |
| 10 | — | None | — | — | — |
| 11 | James L. Regan | 35 | Head | Electrical Engineer | Massachusetts |
| 12 | Theresa Regan | 27 | Wife | — | Massachusetts |
| 13 | Patricia Regan | 8 | Daughter | — | Massachusetts |
| 14 | Theresa Regan | 6 | Daughter | — | Massachusetts |
| 15 | Catherine Hughes | 68 | Sister-in-law | — | Canada |
| 16 | Frances M. Young | 42 | Head | Engraver | Massachusetts |
| 17 | Alice J. Young | 35 | Sister | Time Clerk | Massachusetts |
| 18 | Frederick J. Young | 44 | Head | Painter | Massachusetts |
| 19 | Wilmer J. Young | 40 | Wife | — | Canada |
| 20 | Frederick J. Jr. Young | 19 | Son | Cooks Apprentice | Massachusetts |
| 21 | Marjorie Young | 17 | Daughter | — | Massachusetts |
| 22 | Warren D. Young | 9 | Son | — | Massachusetts |
| 23 | Charles L. Doseberry | 24 | Head | Price Clerk | Massachusetts |
| 24 | Marjorie A. Doseberry | 21 | Wife | — | Massachusetts |
| 25 | Marjorie J. Doseberry | 1 | Daughter | — | Massachusetts |
| 26 | Mary J. Leary | 82 | Head | — | Massachusetts |
| 27 | Mary J. Leary | 53 | Daughter | Inspector | Massachusetts |
| 28 | Frances Mcdonald | 50 | Daughter | Housework | Massachusetts |
| 29 | Francis M. Mcdonald | 50 | Son | Painter | Massachusetts |
| 30 | Robert B. Walker | 29 | Head | Bar Tender | Massachusetts |
| 31 | Ruth P. Walker | 20 | Wife | — | Massachusetts |
| 32 | Roberta J. Walker | 2 | Daughter | — | Massachusetts |
| 33 | Paul B. Walker | 1 | Son | — | Massachusetts |
| 34 | John H. Regan THIS PERSON | 39 | Head | Chauffeur | Massachusetts |
| 35 | Helen Regan | 39 | Wife | — | Massachusetts |
| 36 | John Regan | 15 | Son | — | Massachusetts |
| 37 | Eleanor Regan | 12 | Daughter | — | Massachusetts |
| 38 | Paul Regan | 11 | Son | — | Massachusetts |
| 39 | Richard Regan | 8 | Son | — | Massachusetts |
| 40 | Robert Regan | 0 | Son | — | 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)