WC
William Callahan — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Rockingham, New Hampshire
Our Model Tree links this William Callahan across the 1910 and 1920 US Censuses in Rockingham, New Hampshire (XGBoost, ~Confirmed) — first a son (b.~1891), then head of a 6-person household.
Age 29
b. ~1891
Male
Son
Born: Ireland
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Rockingham, New Hampshire |
| Surname | Callahan |
| Given Name | William J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Ireland |
| Year of Immigration | 1903 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Shoemaker |
| Industry | Shoe Factory |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Shoemaker |
| Township / Ward | Exeter Town |
| Est. Birth Year | ~1891 |
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 1920 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Katherine Callahan | Head | — | 69 | ~1851 |
| Florence Callahan | Daughter | — | 21 | ~1899 |
| John Callahan | Son | — | 31 | ~1889 |
| Lillian Callahan | Daughter | — | 27 | ~1893 |
| Marion Callahan | Daughter | — | 23 | ~1897 |
| William Callahan | Son | — | 29 | ~1891 |
Census Appearances
1910
Rockingham, New …
Son, age 20
Rockingham, New Hampshire · implied b. ~1890 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Callahan |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Ireland |
| Year of Immigration | 1904 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Shoe maker |
| Industry | Shoe shop |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
Rockingham, New …
Son, age 29
Rockingham, New Hampshire · implied b. ~1891 — 6 household members
| Surname | Callahan |
| Given Name | William J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Ireland |
| Year of Immigration | 1903 |
| Naturalization Status | First papers filed |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Shoemaker |
| Industry | Shoe Factory |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish English |
| 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 William Callahan across 2 US Census years (1910 and 1920) in Rockingham, New Hampshire, using XGBoost record linkage.
Show:
This person
Anchor record
William Callahan
Son · 1920 · age 29 · b. ~1891 · New Hampshire
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Sibling
Florence Callahan
Sibling · 1920 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lillian Callahan
Sibling · 1920 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marion Callahan
Sibling · 1920 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Callahan
Sibling · 1920 · age 31
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
1920 US Federal Census — Rockingham, New Hampshire
Open full size
1920 US Federal Census — Rockingham, New Hampshire
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1013unit:0834)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | George A. Harrigan | 47 | Head | Cutter | Massachusetts |
| 2 | Clara B. Harrigan | 41 | Wife | Shoemaker | New Hampshire |
| 3 | William S. Harrigan | 19 | Son | Heelers Helper | New Hampshire |
| 4 | Lawrence A. Harrigan | 17 | Son | Cutter | New Hampshire |
| 5 | George H. Demers | 60 | Head | Section Man | Canada |
| 6 | Elizabeth Demers | 64 | Wife | — | Canada |
| 7 | Delia M. Demers | 29 | Daughter | Stitcher | Maine |
| 8 | Frank Morey | 64 | Head | Shoemaker | Canada |
| 9 | Albert J. Page | 26 | Son in law | Shoemaker | New Hampshire |
| 10 | Antoinette Page | 23 | Daughter | Stitcher | Canada |
| 11 | Katherine C. Callahan | 69 | Head | — | Ireland |
| 12 | John J. Callahan | 31 | Son | Shoemaker | Ireland |
| 13 | William J. Callahan THIS PERSON | 29 | Son | Shoemaker | Ireland |
| 14 | Lillian B. Callahan | 27 | Daughter | Shoemaker | Massachusetts |
| 15 | Marion Callahan | 23 | Daughter | — | Massachusetts |
| 16 | Florence Callahan | 21 | Daughter | — | New Hampshire |
| 17 | Joseph L. Rivard | 44 | Head | Meat And Provisions | French |
| 18 | Amelia M. Rivard | 43 | Wife | — | French |
| 19 | Adelard Denoncour | 32 | Head | Shoemaker | New Hampshire |
| 20 | Mary C. Denoncour | 23 | Wife | — | English |
| 21 | Adeline M. Denoncour | 4 | Daughter | — | New Hampshire |
| 22 | Caroline M. Denoncour | 1 | Daughter | — | New Hampshire |
| 23 | Walter E. Armstrong | 49 | Head | Shoe Factory | English |
| 24 | Phoebe H. Armstrong | 43 | Wife | — | English |
| 25 | Helen J. Armstrong | 14 | Daughter | — | Canada |
| 26 | Walter J. Armstrong | 9 | Son | — | New Hampshire |
| 27 | Joseph Danielewicz | 32 | Head | Green Houses | Polish |
| 28 | Mary M. Danielewicz | 31 | Wife | — | Polish |
| 29 | Bernice Danielewicz | 8 | Daughter | — | New Hampshire |
| 30 | Steven Danielewicz | 5 | Son | — | New Hampshire |
| 31 | Annie Danielewicz | 4 | Daughter | — | New Hampshire |
| 32 | Louise Danielewicz | 2 | Daughter | — | New Hampshire |
| 33 | Victoria Danielewicz | 27 | Boarder | Cotton Mill | Polish |
| 34 | Albert Marquis | 33 | Boarder | Brickyard | French |
| 35 | James M. Bean | 76 | Head | — | New Hampshire |
| 36 | Mary A. Bean | 67 | Wife | — | New Hampshire |
| 37 | Charles H. Paran | 37 | Head | Shoemaker | Massachusetts |
| 38 | Eva M. Paran | 33 | Wife | — | New Hampshire |
| 39 | Charles H. Paran | 12 | Son | — | New Hampshire |
| 40 | Evelyn M. Paran | 5 | Daughter | — | Massachusetts |
| 41 | Dora B. Noville | 24 | Head | Shoemaker | New Hampshire |
| 42 | Louis P. Noville | 9 | Son | — | New Hampshire |
| 43 | Eva M. Noville | 6 | Daughter | — | New Hampshire |
| 44 | Alfred G. Hunt | 38 | Head | Poultry Farm | English |
| 45 | Henrietta S. Hunt | 43 | Wife | — | English |
| 46 | Jeremie Des Roches | 38 | Head | General Store | French |
| 47 | Zenaide Des Roches | 37 | Wife | — | French |
| 48 | Joseph F. Des Roches | 15 | Son | Shoemaker | New Hampshire |
| 49 | Joseph H. Des Roches | 14 | Son | Shoemaker | New Hampshire |
| 50 | Louis G. Des Roches | 12 | Son | — | Massachusetts |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)