WQ
William Quinn — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this William Quinn across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 7-person household.
Age 17
b. ~1923
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Quinn |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Watertown town |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Watertown Town |
| Est. Birth Year | ~1923 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Helen Quinn | Daughter | — | 14 | ~1926 |
| Alice Quinn | Daughter | — | 19 | ~1921 |
| Terence Quinn | Head | — | 52 | ~1888 |
| William Quinn | Son | — | 17 | ~1923 |
| Leo Quinn | Son | — | 13 | ~1927 |
| Joseph Quinn | Son | — | 21 | ~1919 |
| Bridget Quinn | Spouse | — | 54 | ~1886 |
Census Appearances
1930
Middlesex, Massachusetts
Son, age 7
Middlesex, Massachusetts · implied b. ~1923 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Quinn |
| Given Name | William J Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | New Hampshire |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 17
Middlesex-County, Massachusetts · implied b. ~1923 — 7 household members
| Surname | Quinn |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Watertown town |
| 1935 Residence (County) | Middlesex |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| 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 William Quinn across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Quinn
Son · 1940 · age 17 · b. ~1923 · Massachusetts
★ You are viewing this record
Sibling
Joseph Quinn
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Quinn
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Quinn
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leo Quinn
Sibling · 1940 · age 13
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 — Middlesex-County, Massachusetts
Open full size
1940 US Federal Census — Middlesex-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01620-00668)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James Russell | 50 | Head | Laborer | Massachusetts |
| 2 | Catherine Russell | 47 | Wife | — | Massachusetts |
| 3 | James Russell | 13 | Son | — | Massachusetts |
| 4 | Grace Mcgee | 35 | Sister-in-law | Switch Board | Massachusetts |
| 5 | Stephen Milmore | 55 | Head | Barber | Massachusetts |
| 6 | Ann Milmore | 53 | Wife | — | Massachusetts |
| 7 | Frederick Milmore | 30 | Son | Fireman | Massachusetts |
| 8 | Mary Milmore | 28 | Daughter | Office Secretary | Massachusetts |
| 9 | Stephen Milmore | 23 | Son | Chauffeur | Massachusetts |
| 10 | Terence Quinn | 52 | Head | Janitor | Ireland |
| 11 | Bridget Quinn | 54 | Wife | — | Ireland |
| 12 | Joseph Quinn | 21 | Son | Stenographer | Massachusetts |
| 13 | Alice Quinn | 19 | Daughter | Book Keeper | Massachusetts |
| 14 | William Quinn THIS PERSON | 17 | Son | — | Massachusetts |
| 15 | Helen Quinn | 14 | Daughter | — | Massachusetts |
| 16 | Leo Quinn | 13 | Son | — | Massachusetts |
| 17 | Martin Mullahey | 35 | Head | Iron Molder | Ireland |
| 18 | Nora Mullahey | 33 | Wife | — | Ireland |
| 19 | Mary Mullahey | 6 | Daughter | — | Massachusetts |
| 20 | William Mullahey | 4 | Son | — | Massachusetts |
| 21 | Claire Mullahey | 2 | Daughter | — | Massachusetts |
| 22 | Kenneth Wetmore | 31 | Head | Salesman | Maine |
| 23 | Philena Wetmore | 36 | Wife | — | Maine |
| 24 | Elizabeth Wetmore | 16 | Daughter | — | Maine |
| 25 | Charles Keefe | 46 | Head | Plumber | Massachusetts |
| 26 | Mary Keefe | 41 | Sister | Real Estate Agent | Massachusetts |
| 27 | Helen Keefe | 35 | Sister | Bookkeeper | Massachusetts |
| 28 | Bridget Durkin | 66 | Head | — | Ireland |
| 29 | Lillian Durkin | 37 | Daughter | Stenographer | Massachusetts |
| 30 | Thomas Durkin | 35 | Son | Laborer | Massachusetts |
| 31 | George Doty | 44 | Head | Electrical Engineer | Pennsylvania |
| 32 | Bernice Doty | 46 | Wife | — | Pennsylvania |
| 33 | Harriet Doty | 21 | Daughter | Floor Lady | Pennsylvania |
| 34 | Drew Doty | 20 | Son | Laborer | Massachusetts |
| 35 | Keith Doty | 16 | Son | — | Massachusetts |
| 36 | Nellie Doty | 14 | Daughter | — | Massachusetts |
| 37 | Janice Doty | 11 | Daughter | — | Massachusetts |
| 38 | Patricia Doty | 6 | Daughter | — | Massachusetts |
| 39 | Nathan Beech | 65 | Head | Driver | Canada English |
| 40 | Catherine Beech | 63 | Wife | — | Ireland |
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)