JG
John Gilmore — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this John Gilmore across the 1910 and 1920 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1900), then head of a 8-person household.
Age 20
b. ~1900
Male
Son
Born: Massachusetts
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Middlesex, Massachusetts |
| Surname | Gilmore |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Additional Details | |
| Occupation | Medicine Co |
| Industry | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Manager |
| Mother Tongue | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Medicine Co |
| Township / Ward | Lowell City |
| Est. Birth Year | ~1900 |
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 1920 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| William Hallowell | Other | — | 58 | ~1862 |
| Martha Gilmore | Spouse | — | 54 | ~1866 |
| John Gilmore | Son | — | 20 | ~1900 |
| James Gilmore | Son | — | 24 | ~1896 |
| Robert Gilmore | Son | — | 12 | ~1908 |
| William Gilmore | Head | — | 60 | ~1860 |
| Esther Gilmore | Other | — | 24 | ~1896 |
| Albert Gilmore | Son | — | 18 | ~1902 |
Census Appearances
1910
Middlesex, Massachusetts
Son, age 10
Middlesex, Massachusetts · implied b. ~1900 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gilmore |
| Given Name | John H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Middlesex, Massachusetts
Son, age 20
Middlesex, Massachusetts · implied b. ~1900 — 8 household members
| Surname | Gilmore |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Medicine Co |
| Industry | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Manager |
| Mother Tongue | Yes |
| 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 Gilmore across 2 US Census years (1910 and 1920) in Middlesex, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
John Gilmore
Son · 1920 · age 20 · b. ~1900 · Massachusetts
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Sibling
Albert Gilmore
Sibling · 1920 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Gilmore
Sibling · 1920 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Gilmore
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 — Middlesex, Massachusetts
Open full size
1920 US Federal Census — Middlesex, Massachusetts
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu710unit:1044)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Adelina D'Arezzo | 23 | Daughter | Weaver | Italy |
| 52 | Antoinette D'Arezzo | 21 | Daughter | Spooler | Italy |
| 53 | Mary D'Arezzo | 19 | Daughter | Operative | Italy |
| 54 | Margaret D'Arezzo | 15 | Daughter | Doffer | Italy |
| 55 | Viola D'Arezzo | 12 | Daughter | — | Massachusetts |
| 56 | Justin Chamberlain | 63 | Head | Box Shop | Massachusetts |
| 57 | Elizabeth Chamberlain | 43 | Wife | — | Maine |
| 58 | Robert Chamberlain | 23 | Son | Car Shops | Massachusetts |
| 59 | Joseph F Cook | 53 | Head | Cartridge Co | Missouri |
| 60 | Jane M Cook | 42 | Wife | — | New York |
| 61 | Barbara O'Neil | 37 | Boarder | — | Massachusetts |
| 62 | Anna F Scanlon | 36 | Boarder | Dressmaker | Massachusetts |
| 63 | Denis Sheehan | 35 | Boarder | Loomfixer | Ireland |
| 64 | James H Higgins | 50 | Boarder | Farmer | New York |
| 65 | Louis J Landrette | 57 | Boarder | Clerk | Canada |
| 66 | John Melvin | 53 | Boarder | Cutter | Sweden |
| 67 | Stone Hachey | 47 | Head | Waitress | Canada |
| 68 | John J Howard | 58 | Head | Carpenter | Ireland |
| 69 | Katherine Howard | 47 | Wife | — | Massachusetts |
| 70 | Irene M Howard | 16 | Daughter | — | Massachusetts |
| 71 | Harold Howard | 13 | Son | — | Massachusetts |
| 72 | Francis Howard | 5 | Son | — | Massachusetts |
| 73 | Mary Sheehan | 45 | Head | Inspector | Massachusetts |
| 74 | Bridget Muldoon | 65 | Head | — | Ireland |
| 75 | Thomas Muldoon | 38 | Son | Clerk | Massachusetts |
| 76 | Anna Muldoon | 32 | Daughter | Clerk | Massachusetts |
| 77 | Catherine Nugent | 50 | Head | — | Ireland |
| 78 | Bridget Nugent | 60 | Sister | — | Ireland |
| 79 | Alexander Peterson | 60 | Head | Baker | Scotland |
| 80 | Julia Peterson | 59 | Wife | — | Ireland |
| 81 | Alexander Peterson | 21 | Son | Laborer | Massachusetts |
| 82 | Lucy Peterson | 27 | Daughter | — | Massachusetts |
| 83 | James Peterson | 30 | Son-in-law | Salesman | Massachusetts |
| 84 | Mary Carroll | 43 | Head | — | Ireland |
| 85 | Catherine Carroll | 21 | Daughter | Knitter | New Hampshire |
| 86 | Anna Carroll | 19 | Daughter | Knitter | New Hampshire |
| 87 | Louise Carroll | 18 | Daughter | Clerk | Massachusetts |
| 88 | Roger Carroll | 16 | Son | Bundle Boy | Massachusetts |
| 89 | William Gilmore | 60 | Head | Foreman | Massachusetts |
| 90 | Martha H Gilmore | 54 | Wife | — | Maine |
| 91 | John Gilmore THIS PERSON | 20 | Son | Medicine Co | Massachusetts |
| 92 | Albert Gilmore | 18 | Son | Cartridge Co | Massachusetts |
| 93 | Robert Gilmore | 12 | Son | — | Massachusetts |
| 94 | James Gilmore | 24 | Son | Theatre | Massachusetts |
| 95 | Esther V Gilmore | 24 | Daughter-in-law | Hosiery | Massachusetts |
| 96 | William H Hallowell | 58 | Boarder | Laborer | Massachusetts |
| 97 | Mary Murray | 56 | Head | Spearing | Ireland |
| 98 | Harriet Murray | 26 | Daughter | — | Massachusetts |
| 99 | Bella Welch | 34 | Head | — | Massachusetts |
| 100 | John Welch | 40 | Brother | Staker | 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)