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William Giles — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this William Giles across the 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 6-person household.
Age 11
b. ~1929
Male
Son
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Giles |
| Given Name | William |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden City |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Highest Grade | S-5 |
| 1935 Residence | Same house |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Malden City |
| Est. Birth Year | ~1929 |
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 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Donald Giles | Son | — | 15 | ~1925 |
| Rosella Giles | Spouse | — | 40 | ~1900 |
| Edward Giles | Head | — | 44 | ~1896 |
| William Giles | Son | — | 11 | ~1929 |
| Mildred Giles | Daughter | — | 13 | ~1927 |
| Muriel Giles | Daughter | — | 17 | ~1923 |
Census Appearances
1930
Middlesex, Massachusetts
Son, age 1
Middlesex, Massachusetts · implied b. ~1929 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Giles |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Ireland Free State |
| Mother's Birthplace | Ireland Free State |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Son, age 11
Middlesex-County, Massachusetts · implied b. ~1929 — 6 household members
| Surname | Giles |
| Given Name | William |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Malden City |
| 1935 Residence (County) | Middlesex |
| Highest Grade | S-5 |
| 1935 Residence | Same house |
| 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 Giles across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Giles
Son · 1940 · age 11 · b. ~1929 · Massachusetts
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Sibling
Mildred Giles
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Donald Giles
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Muriel Giles
Sibling · 1940 · age 17
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-t0627-01609-00019)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Irene Barnes | 41 | wife | — | Massachusetts |
| 2 | Raymond Barnes | 14 | son | — | Massachusetts |
| 3 | Lillian Barnes | 11 | daughter | — | Massachusetts |
| 4 | Dorothy Barnes | 9 | daughter | — | Massachusetts |
| 5 | Anna Barnes | 1 | daughter | — | Massachusetts |
| 6 | John Klein | 65 | uncle | — | New Jersey |
| 7 | Edward Giles | 44 | head | Mechanic | Massachusetts |
| 8 | Rosella Giles | 40 | wife | — | Massachusetts |
| 9 | Muriel Giles | 17 | daughter | — | Massachusetts |
| 10 | Donald Giles | 15 | son | — | Massachusetts |
| 11 | Mildred Giles | 13 | daughter | — | Massachusetts |
| 12 | William Giles THIS PERSON | 11 | son | — | Massachusetts |
| 13 | Donald Grover | 47 | head | Mechanic | Massachusetts |
| 14 | Annie Grover | 44 | wife | — | Massachusetts |
| 15 | Alexander Grover | 20 | son | Stone Cutter | Massachusetts |
| 16 | Donald Grover | 17 | son | — | Massachusetts |
| 17 | Agnes Grover | 15 | daughter | — | Massachusetts |
| 18 | Alvina Grover | 12 | daughter | — | Massachusetts |
| 19 | Charles Grover | 10 | daughter | — | Massachusetts |
| 20 | Henry Grover | 9 | son | — | Massachusetts |
| 21 | Otto Johnson | 45 | head | Captain | Sweden |
| 22 | Lena Johnson | 44 | wife | — | Norway |
| 23 | Albert Johnson | 6 | son | — | Massachusetts |
| 24 | Paul Raymond | 28 | head | Electrician | Massachusetts |
| 25 | Ethel Raymond | 29 | wife | — | Massachusetts |
| 26 | Ethel Raymond | 4 | daughter | — | Massachusetts |
| 27 | Merrill Clark | 29 | head | Salesman | Maine |
| 28 | Catherine Clark | 26 | wife | — | Massachusetts |
| 29 | Christine Clark | 8 | daughter | — | Massachusetts |
| 30 | John Clark | 3 | son | — | Massachusetts |
| 31 | Evelyn Clark | 22 | sister | Factory Help | Maine |
| 32 | Catherine Mcfarland | 48 | head | Laundress | Scotland |
| 33 | Annie Mcfarland | 26 | daughter | Cook | Massachusetts |
| 34 | William Smith | 44 | head | Carpenter | Scotland |
| 35 | Margaret Smith | 40 | wife | — | Massachusetts |
| 36 | — | None | — | — | — |
| 37 | Mary Walsh | 42 | head | Bookkeeper | Massachusetts |
| 38 | Madeline Walsh | 15 | daughter | — | Massachusetts |
| 39 | Mary Walsh | 70 | mother | — | Massachusetts |
| 40 | Richard Roberts | 39 | head | Publishing | 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)