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John Mcdonnell — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Grafton, New Hampshire
Our Model Tree links this John Mcdonnell across the 1910 and 1920 US Censuses in Grafton, New Hampshire (XGBoost, ~Confirmed) — first a son (b.~1907), then head of a 6-person household.
Age 13
b. ~1907
Male
Son
Born: New Hampshire
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Grafton, New Hampshire |
| Surname | McDonnell |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Father's Birthplace | Canada |
| Mother's Birthplace | New Hampshire |
| Additional Details | |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
| Township / Ward | Bethlehem Town |
| Est. Birth Year | ~1907 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| John Mcdonnell | Son | — | 13 | ~1907 |
| John Mcdonnell | Head | — | 48 | ~1872 |
| Alice Mcdonnell | Daughter | — | 6 | ~1914 |
| Mary Mcdonnell | Daughter | — | 18 | ~1902 |
| James Mcdonnell | Son | — | 12 | ~1908 |
| Margaret Mcdonnell | Spouse | — | 40 | ~1880 |
Census Appearances
1910
Grafton, New …
Son, age 4
Grafton, New Hampshire · implied b. ~1906 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McDonnell |
| Given Name | John E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Father's Birthplace | Nova Scotia |
| Mother's Birthplace | New Hampshire |
| Birth State | New Hampshire |
| Birth Country | United States |
| Birthplace (normalized) | new hampshire |
1920
Grafton, New …
Son, age 13
Grafton, New Hampshire · implied b. ~1907 — 6 household members
| Surname | McDonnell |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | New Hampshire |
| Father's Birthplace | Canada |
| Mother's Birthplace | New Hampshire |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| 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 Mcdonnell across 2 US Census years (1910 and 1920) in Grafton, New Hampshire, using XGBoost record linkage.
Show:
This person
Anchor record
John Mcdonnell
Son · 1920 · age 13 · b. ~1907 · New Hampshire
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Sibling
Alice Mcdonnell
Sibling · 1920 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Mcdonnell
Sibling · 1920 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Mcdonnell
Sibling · 1920 · age 12
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 — Grafton, New Hampshire
Open full size
1920 US Federal Census — Grafton, New Hampshire
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1008unit:0086)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Albert Ingerson | 33 | Boarder | Teamster | New Hampshire |
| 52 | Edward Harrigan | 20 | Head | Woodsman | New Hampshire |
| 53 | Elizabeth Harrigan | 18 | Wife | None | New Hampshire |
| 54 | Thomas J Harrigan | 0 | Son | None | New Hampshire |
| 55 | Charles H Duranty | 48 | Head | Railroadman | Canada French |
| 56 | Margaret Duranty | 45 | Wife | None | Ireland |
| 57 | Gertrude Duranty | 16 | Daughter | None | New Hampshire |
| 58 | Frances Duranty | 15 | Daughter | None | New Hampshire |
| 59 | Lawrence Duranty | 12 | Son | None | New Hampshire |
| 60 | Marion Duranty | 11 | Daughter | None | New Hampshire |
| 61 | Joseph Duranty | 9 | Son | None | New Hampshire |
| 62 | Edward Devaney | 28 | Boarder | Laborer | Ireland |
| 63 | Adney Ainsworth | 47 | Head | Farmer | Vermont |
| 64 | Alice Ainsworth | 30 | Wife | None | Vermont |
| 65 | Kenneth Ainsworth | 10 | Son | None | Vermont |
| 66 | Howard Ainsworth | 7 | Son | None | New Hampshire |
| 67 | Ola Ainsworth | 1 | Daughter | None | New Hampshire |
| 68 | John Whyte | 62 | Head | Carpenter | Scotland |
| 69 | Ada Whyte | 57 | Wife | None | New Hampshire |
| 70 | John Mcdonnell | 48 | Head | Retail Merchant | Canada |
| 71 | Margaret Mcdonnell | 40 | Wife | None | New Hampshire |
| 72 | Mary Mcdonnell | 18 | Daughter | Telephone Operator | New Hampshire |
| 73 | John Mcdonnell THIS PERSON | 13 | Son | None | New Hampshire |
| 74 | James Mcdonnell | 12 | Son | None | New Hampshire |
| 75 | Alice D Mcdonnell | 6 | Daughter | None | New Hampshire |
| 76 | Richard Mckenna | 36 | Head | Railroad Man | New Hampshire |
| 77 | Margaret Mckenna | 26 | Wife | None | Vermont |
| 78 | Patricia Mckenna | 1 | Daughter | None | New Hampshire |
| 79 | Joseph Mckenna | 73 | Father | Blacksmith | Canada |
| 80 | Charlie Mckenna | 39 | Brother | Station Agent | New Hampshire |
| 81 | Beatrice Gannon | 15 | Sister in law | None | Vermont |
| 82 | Alex Mcdonnell | 47 | Head | Farmer | Canada |
| 83 | Thomas Finn | 38 | Head | Railroad | New Hampshire |
| 84 | Mary Finn | 47 | Wife | None | New Hampshire |
| 85 | Alice Finn | 4 | Daughter | None | New Hampshire |
| 86 | Frank Beaton | 44 | Head | Farmer | New Hampshire |
| 87 | Jessie Beaton | 46 | Sister | None | New Hampshire |
| 88 | Francis Beaton | 6 | Son | None | New Hampshire |
| 89 | Danl Beaton | 75 | Father | Laborer | Canada |
| 90 | Kali Beaton | 73 | Mother | None | Canada |
| 91 | George Mcrea | 42 | Head | Stationary Engineer | New Hampshire |
| 92 | Sarah J Mcrea | 40 | Wife | None | Massachusetts |
| 93 | James Mcrea | 72 | Father | None | Canada |
| 94 | Mabel Doyle | 24 | Boarder | Teacher | Maine |
| 95 | William Mcrea | 46 | Brother | Garage Man | New Hampshire |
| 96 | George R Harrigan | 35 | Head | Railroad Section | New Hampshire |
| 97 | Fanny Harrigan | 27 | Wife | Teacher | New Hampshire |
| 98 | Alice Ingerson | 62 | Mother in law | None | Ireland |
| 99 | Cephas Jobin | 59 | Head | Carpenter | Canada |
| 100 | Mildred Jobin | 25 | Daughter in law | None | 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)