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William Reid — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this William Reid across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1924), then head of a 9-person household.
Age 16
b. ~1924
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Reid |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | City of Cambridge |
| 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 | City Of Cambridge |
| Est. Birth Year | ~1924 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Lorraine Reid | Daughter | — | 6 | ~1934 |
| Edna Reid | Daughter | — | 9 | ~1931 |
| Rose Reid | Daughter | — | 13 | ~1927 |
| Helen Reid | Daughter | — | 18 | ~1922 |
| Hugh Reid | Head | — | 48 | ~1892 |
| William Reid | Son | — | 16 | ~1924 |
| George Reid | Son | — | 11 | ~1929 |
| Thomas Reid | Son | — | 15 | ~1925 |
| Elizabeth Reid | Spouse | — | 40 | ~1900 |
Census Appearances
1930
Middlesex, Massachusetts
Son, age 6
Middlesex, Massachusetts · implied b. ~1924 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Reid |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Massachusetts |
| Occupation | none |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 16
Middlesex-County, Massachusetts · implied b. ~1924 — 9 household members
| Surname | Reid |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | City of Cambridge |
| 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 Reid across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Reid
Son · 1940 · age 16 · b. ~1924 · Massachusetts
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Sibling
Lorraine Reid
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rose Reid
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Reid
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edna Reid
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Reid
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Reid
Sibling · 1940 · age 11
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-t0627-01683-00035)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward Becca | 50 | Head | Laborer | Italy |
| 2 | Mary Becca | 49 | Wife | — | Massachusetts |
| 3 | Louise Becca | 20 | Daughter | Presser | Massachusetts |
| 4 | Edward Becca | 19 | Son | New Worker | Massachusetts |
| 5 | Florence Becca | 16 | Daughter | — | Massachusetts |
| 6 | Alice Becca | 14 | Daughter | — | Massachusetts |
| 7 | Robert Becca | 9 | Son | — | Massachusetts |
| 8 | Joseph Bonin | 53 | Head | Brakeman | Canada-French |
| 9 | Rose Bonin | 50 | Wife | — | Canada-French |
| 10 | Joseph Bonin | 27 | Son | Truckman | Massachusetts |
| 11 | Martin Bonin | 20 | Son | Ladder Maker | Canada-French |
| 12 | Doris Bonin | 16 | Daughter | — | Massachusetts |
| 13 | Joseph Bonin | 29 | Son | Cutter | Massachusetts |
| 14 | Margaret Bonin | 29 | Daughter-in-law | Stitcher | English |
| 15 | Barbara Bonin | 4 | Grand-daughter | — | Massachusetts |
| 16 | Michael O'Brien | 76 | Head | Teamster | Massachusetts |
| 17 | John W. O'Brien | 78 | Brother | — | Massachusetts |
| 18 | Edward G. O'Brien | 66 | Brother | — | Massachusetts |
| 19 | Hugh Reid | 48 | Head | — | Missouri |
| 20 | Elizabeth Reid | 40 | Wife | — | Massachusetts |
| 21 | Helen Reid | 18 | Daughter | New Worker | Massachusetts |
| 22 | William Reid THIS PERSON | 16 | Son | — | Massachusetts |
| 23 | Thomas Reid | 15 | Son | — | Massachusetts |
| 24 | Rose Marie Reid | 13 | Daughter | — | Massachusetts |
| 25 | George Reid | 11 | Son | — | Massachusetts |
| 26 | Edna May Reid | 9 | Daughter | — | Massachusetts |
| 27 | Lorraine Reid | 6 | Daughter | — | Massachusetts |
| 28 | Thomas Poirier | 22 | Head | Laborer | Canada-French |
| 29 | Beatrice Poirier | 20 | Wife | — | Massachusetts |
| 30 | Thomas Poirier | 1 | Son | — | Massachusetts |
| 31 | Charles V. Poirier | 0 | Son | — | Massachusetts |
| 32 | John Santos | 46 | Head | Painter | Portugal |
| 33 | Anna Santos | 42 | Wife | — | Massachusetts |
| 34 | John Jr. Santos | 19 | Son | Truck Driver | Massachusetts |
| 35 | Rena Santos | 14 | Daughter | — | Massachusetts |
| 36 | Claire Santos | 7 | Daughter | — | Massachusetts |
| 37 | Robert Santos | 5 | Son | — | Massachusetts |
| 38 | Lewis Santos | 3 | Son | — | Massachusetts |
| 39 | Angelo De Vito | 28 | Head | Laborer | Massachusetts |
| 40 | Evelyn De Vito | 24 | Wife | Stitcher | Massachusetts |
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)