JH
John Harrington — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Middlesex, Massachusetts
Our Model Tree links this John Harrington across the 1910 and 1920 US Censuses in Middlesex, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1896), then head of a 11-person household.
Age 24
b. ~1896
Male
Son
Born: Massachusetts
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Middlesex, Massachusetts |
| Surname | Harrington |
| Given Name | John J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Bricklayer |
| Industry | Construction work |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Bricklayer |
| Township / Ward | Chelmsford Town Part Of |
| Est. Birth Year | ~1896 |
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.
11 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Anna Harrington | Daughter | — | 27 | ~1893 |
| Dorothy Harrington | Daughter | — | 7 | ~1913 |
| Blanche Harrington | Daughter | — | 13 | ~1907 |
| Gladys Harrington | Daughter | — | 10 | ~1910 |
| Timothy Harrington | Head | — | 59 | ~1861 |
| Thomas Harrington | Son | — | 19 | ~1901 |
| James Harrington | Son | — | 26 | ~1894 |
| John Harrington | Son | — | 24 | ~1896 |
| Walter Harrington | Son | — | 15 | ~1905 |
| Timothy Harrington | Son | — | 22 | ~1898 |
| Catherine Harrington | Spouse | — | 45 | ~1875 |
Census Appearances
1910
Middlesex, Massachusetts
Son, age 15
Middlesex, Massachusetts · implied b. ~1895 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harrington |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1920
Middlesex, Massachusetts
Son, age 24
Middlesex, Massachusetts · implied b. ~1896 — 11 household members
| Surname | Harrington |
| Given Name | John J |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Bricklayer |
| Industry | Construction work |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | 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 Harrington across 2 US Census years (1910 and 1920) in Middlesex, Massachusetts, using XGBoost record linkage.
Show:
This person
Anchor record
John Harrington
Son · 1920 · age 24 · b. ~1896 · Massachusetts
★ You are viewing this record
Sibling
Dorothy Harrington
Sibling · 1920 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Blanche Harrington
Sibling · 1920 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Harrington
Sibling · 1920 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Harrington
Sibling · 1920 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gladys Harrington
Sibling · 1920 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Harrington
Sibling · 1920 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Timothy Harrington
Sibling · 1920 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Harrington
Sibling · 1920 · age 19
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:1920:14thcensusofpopu706unit:1027)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John F Kennedy | 19 | Son | Shipping Clerk | Massachusetts |
| 2 | Mary L Kennedy | 15 | Daughter | — | Massachusetts |
| 3 | Charles Kennedy | 13 | Son | — | Massachusetts |
| 4 | Gertrude Kennedy | 10 | Daughter | — | Massachusetts |
| 5 | James Kennedy | 5 | Son | — | Massachusetts |
| 6 | Walter F Charles | 57 | Head | Overseer | Massachusetts |
| 7 | Emma Charles | 54 | Wife | Operative | Sweden |
| 8 | Gustave Lung | 35 | Nephew | Carpenter | Sweden |
| 9 | Ada Wadd | 59 | Boarder | — | New York |
| 10 | Arthur M Gray | 37 | Head | Assembler | Vermont |
| 11 | Angie M Gray | 36 | Wife | — | New Hampshire |
| 12 | Fred P Gray | 12 | Son | — | New Hampshire |
| 13 | Charles S Gray | 10 | Son | — | New Hampshire |
| 14 | Carl M Gray | 9 | Son | — | New Hampshire |
| 15 | Clark H Gray | 7 | Son | — | New Hampshire |
| 16 | B Elizabeth Gray | 5 | Daughter | — | New Hampshire |
| 17 | Eunice D Gray | 3 | Daughter | — | Massachusetts |
| 18 | Grace O Gray | 1 | Daughter | — | Massachusetts |
| 19 | Ezekiel D Gray | 82 | Father | — | Vermont |
| 20 | Eva Johnson | 69 | Head | — | Sweden |
| 21 | Anna M Johnson | 33 | Daughter | Inspector | Sweden |
| 22 | Susan F Mcfarlin | 81 | Head | — | Massachusetts |
| 23 | Herbert Schofield | 52 | Boarder | Laborer | Massachusetts |
| 24 | Lizzie Schofield | 58 | Boarder | Housework | Massachusetts |
| 25 | Robert Ashworth | 53 | Head | — | Ireland |
| 26 | Margaret Ashworth | 49 | Wife | — | Massachusetts |
| 27 | Robert Ashworth | 24 | Son | Lineman | Massachusetts |
| 28 | John Ashworth | 21 | Son | Electrician | Massachusetts |
| 29 | Charles Ashworth | 16 | Son | — | Massachusetts |
| 30 | Hazel Ashworth | 13 | Daughter | — | Massachusetts |
| 31 | Harold Ashworth | 11 | Son | — | Massachusetts |
| 32 | Mildred Ashworth | 8 | Daughter | — | Massachusetts |
| 33 | Timothy H Harrington | 59 | Head | Laborer | Ireland |
| 34 | Catherine M Harrington | 45 | Wife | — | Ireland |
| 35 | Anna C Harrington | 27 | Daughter | Mender | Massachusetts |
| 36 | James G Harrington | 26 | Son | Inspector | Massachusetts |
| 37 | John J Harrington THIS PERSON | 24 | Son | Bricklayer | Massachusetts |
| 38 | Timothy J Harrington | 22 | Son | Laborer | Massachusetts |
| 39 | Thomas F Harrington | 19 | Son | Apprentice | Massachusetts |
| 40 | Walter J Harrington | 15 | Son | — | Massachusetts |
| 41 | Blanche Harrington | 13 | Daughter | — | Massachusetts |
| 42 | Gladys Harrington | 10 | Daughter | — | Massachusetts |
| 43 | Dorothy H Harrington | 7 | Daughter | — | Massachusetts |
| 44 | Mary A Mckillian | 58 | Head | Weaver | England |
| 45 | Mary Mckillian | 33 | Daughter | — | Massachusetts |
| 46 | James Mckillian | 23 | Son | Chauffeur | Massachusetts |
| 47 | Dennis Harrington | 50 | Head | Laborer | Ireland |
| 48 | Annie Harrington | 37 | Wife | Operator | Ireland |
| 49 | Frances Harrington | 16 | Daughter | — | Massachusetts |
| 50 | John Harrington | 14 | 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)