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Gertrude Hill — 1940 US Census Record
Model Tree available1940 United States Federal Census · Middlesex-County, Massachusetts
Our Model Tree links this Gertrude Hill across the 1920, 1930 and 1940 US Censuses in Middlesex-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Alfred & Alfred — first a daughter (b.~1908), then head of a 6-person household.
Age 32
b. ~1908
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Middlesex-County, Massachusetts |
| Surname | Hill |
| Given Name | Gertrude |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (County) | Middlesex |
| Additional Details | |
| Occupation | W. P. A. |
| Industry | GW |
| Class of Worker | 572 |
| Highest Grade | Hs 4 |
| 1935 Residence | 30 |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | W. P. A. |
| Township / Ward | Lowell |
| Est. Birth Year | ~1908 |
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 Gertrude | Age | Birth yr |
|---|---|---|---|---|
| Nellie Hill | Spouse | — | 66 | ~1874 |
| Lillian Moran | Daughter | — | 29 | ~1911 |
| James Moran | Other | — | ~1940 | |
| Gertrude Hill | Daughter | — | 32 | ~1908 |
| James Moran | Other | — | 33 | ~1907 |
| Alfred Hill | Head | — | 65 | ~1875 |
Census Appearances
1920
Middlesex, Massachusetts
Daughter, age 12
Middlesex, Massachusetts · implied b. ~1908 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hill |
| Given Name | Gertrude V |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Vermont |
| Mother's Birthplace | Massachusetts |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Middlesex, Massachusetts
Daughter, age 21
Middlesex, Massachusetts · implied b. ~1909 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hill |
| Given Name | Gertrude L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Vermont |
| Mother's Birthplace | Massachusetts |
| Occupation | Stenographer |
| Industry | Bank |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Middlesex-County, Massachusetts
Daughter, age 32
Middlesex-County, Massachusetts · implied b. ~1908 — 6 household members
| Surname | Hill |
| Given Name | Gertrude |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (County) | Middlesex |
| Occupation | W. P. A. |
| Industry | GW |
| Class of Worker | 572 |
| Highest Grade | Hs 4 |
| 1935 Residence | 30 |
| 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 Gertrude Hill across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Alfred Hill (~0.92 confidence) and father Alfred Hill (~0.92 confidence) and father Arthur Hill (~0.92 confidence) and mother Nellie Hill (~0.92 confidence) and mother Nellie Hill (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Alfred Hill
b. ~1875
Source father
● Household
· direct · ~0.92
Father
Alfred Hill
b. ~1875
Source father
● Household
· direct · ~0.92
Father
Arthur Hill
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Nellie Hill
b. ~1874
Source mother
● Household
· direct · ~0.92
Mother
Nellie Hill
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Gertrude Hill
Daughter · 1940 · age 32 · b. ~1908 · Massachusetts
★ You are viewing this record
Sibling
Lillian Moran
Sibling · 1940 · age 29
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-t0627-01692-00226)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Eileen Fennell | 3 | Daughter | — | Massachusetts |
| 42 | Henry Fennell | 12 | Son | — | Massachusetts |
| 43 | Thomas Hartley | 46 | Head | W. P. A. | Massachusetts |
| 44 | Evelyn B. Hartley | 45 | Wife | — | Massachusetts |
| 45 | Howard J. Hartley | 18 | Son | Woolen Mill | Massachusetts |
| 46 | Dorothy Hartley | 15 | Daughter | — | Massachusetts |
| 47 | Mary T. Hartley | 11 | Daughter | — | Massachusetts |
| 48 | Thomas Jr. Hartley | 6 | Son | — | Massachusetts |
| 49 | Alphonse Levassar | 47 | Head | Metal Worker | Canada Fr |
| 50 | Helen Levassar | 37 | Wife | Bunting | Massachusetts |
| 51 | Margaret X. Wiggins | 79 | Head | — | Massachusetts |
| 52 | Nelly Wiggins | 72 | Sister | — | Massachusetts |
| 53 | Catherine Wiggins | 70 | Sister | — | Massachusetts |
| 54 | Alfred Hill | 65 | Head | Factory | Massachusetts |
| 55 | Nellie Hill | 66 | Wife | — | Massachusetts |
| 56 | Gertrude Hill THIS PERSON | 32 | Daughter | W. P. A. | Massachusetts |
| 57 | James Moran | 33 | Son-in-law | Street Railway | Massachusetts |
| 58 | Lillian Moran | 29 | Daughter | — | Massachusetts |
| 59 | James Jr. Moran | 0 | Grandson | — | Massachusetts |
| 60 | Edward Dockett | 34 | Head | — | Massachusetts |
| 61 | Margaret V. Dockett | 35 | Wife | — | Massachusetts |
| 62 | Dorothy Dockett | 2 | Daughter | — | Massachusetts |
| 63 | Margaret Dockett | 1 | Daughter | — | Massachusetts |
| 64 | Louise Dockett | 0 | Daughter | — | Massachusetts |
| 65 | Mary J. Castles | 71 | Mother-in-law | — | Massachusetts |
| 66 | Mary T. Castles | 69 | Aunt-in-law | — | Massachusetts |
| 67 | Josephine Sheehan | 60 | Aunt-in-law | Boys School | Massachusetts |
| 68 | William Kirkpatrick | 72 | Head | Retired | Canada-English |
| 69 | Hannah E. Kirkpatrick | 70 | Wife | — | Massachusetts |
| 70 | Joseph Mcmahon | 33 | Head | Oil Co | Massachusetts |
| 71 | Mary E. Mcmahon | 26 | Wife | — | Massachusetts |
| 72 | Joseph Jr. Mcmahon | 2 | Son | — | Massachusetts |
| 73 | Maureen Mcmahon | 0 | Daughter | — | Massachusetts |
| 74 | Mary Mcmahon | 65 | Head | — | Eire |
| 75 | Eileen C. Mcmahon | 29 | Daughter | Public Schools | Massachusetts |
| 76 | Martin E. Mcmahon | 23 | Son | — | Massachusetts |
| 77 | John Mcmahon | 35 | Son | — | Massachusetts |
| 78 | George W. Stafford | 57 | Head | — | Massachusetts |
| 79 | Julia Stafford | 57 | Wife | Worsted Mill | Massachusetts |
| 80 | John Stafford | 20 | Son | — | Massachusetts |
Pedigree Summary
Gertrude + 1 sibling
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)