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John Regan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Rockingham-County, New Hampshire
Our Model Tree links this John Regan across the 1930 and 1940 US Censuses in Rockingham-County, New Hampshire (XGBoost, ~Confirmed) — first a son (b.~1919), then head of a 8-person household.
Age 21
b. ~1919
Male
Son
Born: New Hampshire
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Rockingham-County, New Hampshire |
| Surname | Regan |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| 1935 Residence (City) | Portsmouth |
| 1935 Residence (County) | Rockingham |
| Additional Details | |
| Occupation | Clerk |
| Industry | Shoe Store |
| Class of Worker | PW |
| Hours Worked | 104 |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
| Occupation | Clerk |
| Township / Ward | Portsmouth |
| Est. Birth Year | ~1919 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Regan | Son | — | 21 | ~1919 |
| Joan Regan | Daughter | — | 12 | ~1928 |
| Patrick Regan | Head | — | 52 | ~1888 |
| Lawrence Regan | Son | — | 14 | ~1926 |
| Helen Regan | Daughter | — | 18 | ~1922 |
| Catherine Regan | Daughter | — | 20 | ~1920 |
| Dorothy Regan | Daughter | — | 10 | ~1930 |
| Johanna Regan | Spouse | — | 52 | ~1888 |
Census Appearances
1930
Rockingham, New …
Son, age 11
Rockingham, New Hampshire · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Regan |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1940
Rockingham-County, New …
Son, age 21
Rockingham-County, New Hampshire · implied b. ~1919 — 8 household members
| Surname | Regan |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| 1935 Residence (City) | Portsmouth |
| 1935 Residence (County) | Rockingham |
| Occupation | Clerk |
| Industry | Shoe Store |
| Class of Worker | PW |
| Hours Worked | 104 |
| Income (1939) | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| 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 Regan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Regan
Son · 1940 · age 21 · b. ~1919 · New Hampshire
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Sibling
Catherine Regan
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Regan
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lawrence Regan
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joan Regan
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Regan
Sibling · 1940 · age 10
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-t0627-02296-00416)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Carlos N. Gould | 32 | Head | Boat Builder | Massachusetts |
| 42 | Florence G. Gould | 24 | Wife | — | New Hampshire |
| 43 | Nelson G. Gould | 76 | Father | — | New Hampshire |
| 44 | Maybelle C. Gould | 66 | Mother | — | New Hampshire |
| 45 | Eshil M. Jr. Peschel | 35 | Head | Meat Salesman | Germany |
| 46 | Helen C. Peschel | 30 | Wife | — | Russia |
| 47 | Emil M. Jr. Peschel | 7 | Son | — | Massachusetts |
| 48 | Patrick J. Regan | 52 | Head | Steam Fireman | Eire |
| 49 | Johanna Regan | 52 | Wife | — | Eire |
| 50 | John J. Regan THIS PERSON | 21 | Son | Clerk | New Hampshire |
| 51 | Catherine T. Regan | 20 | Daughter | Bookkeeper | New Hampshire |
| 52 | Helen F. Regan | 18 | Daughter | Bookkeeper | New Hampshire |
| 53 | Lawrence E. Regan | 14 | Son | — | New Hampshire |
| 54 | Joan Regan | 12 | Daughter | — | New Hampshire |
| 55 | Dorothy P. Regan | 10 | Daughter | — | New Hampshire |
| 56 | George E. Marden | 37 | Head | Shipfitter | New Hampshire |
| 57 | Olive L. Marden | 31 | Wife | — | Massachusetts |
| 58 | Francis L. Marden | 13 | Daughter | — | Maine |
| 59 | Marion O. Marden | 10 | Daughter | — | New Hampshire |
| 60 | Georgiana Marden | 8 | Daughter | — | New Hampshire |
| 61 | Joan E. Marden | 4 | Daughter | — | New Hampshire |
| 62 | John E. Marden | 4 | Son | — | New Hampshire |
| 63 | Thomas A. Marden | 1 | Son | — | New Hampshire |
| 64 | Michael O'Grady | 73 | Head | Bartender | Eire |
| 65 | Margaret A. Vickery | 49 | Niece | — | New Hampshire |
| 66 | Guy L. Davis | 42 | Head | Driller | New Hampshire |
| 67 | Helen A. Davis | 44 | Wife | — | New Hampshire |
| 68 | Helen M. Davis | 18 | Daughter | Stenographer | New Hampshire |
| 69 | Barbara L. Davis | 16 | Daughter | Mothers Helper | New Hampshire |
| 70 | John A. Davis | 14 | Son | — | New Hampshire |
| 71 | George G. Davis | 12 | Son | — | New Hampshire |
| 72 | Mary M. Sullivan | 71 | Head | — | New Hampshire |
| 73 | Shirley M. Sullivan | 18 | Granddaughter | — | New Hampshire |
| 74 | Jan E. Sullivan | 17 | Granddaughter | — | New Hampshire |
| 75 | John F. Sullivan | 10 | Grandson | — | New Hampshire |
| 76 | Daniel P. Reardon | 43 | Head | Shipfitter Helper | New Hampshire |
| 77 | Catherine Reardon | 75 | Mother | — | Eire |
| 78 | John Reardon | 34 | Brother | Shipfitter Helper | New Hampshire |
| 79 | Mary Mcdonald | 38 | Sister | Packer | New Hampshire |
| 80 | Mary Mcdonald | 17 | Niece | — | 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)