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Margaret Gray — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Margaret Gray across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1930), then head of a 9-person household.
Age 10
b. ~1930
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Gray |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Highest Grade | 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston |
| Est. Birth Year | ~1930 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| Asley Gray | Head | — | 47 | ~1893 |
| Robert Gray | Son | — | 15 | ~1925 |
| Florence Gray | Daughter | — | 17 | ~1923 |
| James Gray | Son | — | 4 | ~1936 |
| Margaret Gray | Daughter | — | 10 | ~1930 |
| Geraldine Gray | Daughter | — | 19 | ~1921 |
| Helen Gray | Daughter | — | 12 | ~1928 |
| Anna Gray | Spouse | — | 32 | ~1908 |
| Asley Gray | Son | — | 21 | ~1919 |
Census Appearances
1930
Suffolk, Massachusetts
Daughter, age
Suffolk, Massachusetts · implied b. ~1930 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gray |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | No |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Daughter, age 10
Suffolk-County, Massachusetts · implied b. ~1930 — 9 household members
| Surname | Gray |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Highest Grade | 4 |
| 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 Margaret Gray across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Margaret Gray
Daughter · 1940 · age 10 · b. ~1930 · Massachusetts
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Sibling
James Gray
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Asley Gray
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Gray
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Florence Gray
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Geraldine Gray
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Gray
Sibling · 1940 · age 12
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 — Suffolk-County, Massachusetts
Open full size
1940 US Federal Census — Suffolk-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01665-00508)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary D'Onofrio | 18 | Daughter | Packer | Massachusetts |
| 42 | John D'Onofrio | 17 | Son | New Worker | Massachusetts |
| 43 | Salvatore D'Onofrio | 12 | Son | — | Massachusetts |
| 44 | Helen D'Onofrio | 11 | Daughter | — | Massachusetts |
| 45 | Albert St. Hilaire | 33 | Head | Watchman | New Hampshire |
| 46 | Nettie St. Hilaire | 31 | Wife | — | Maine |
| 47 | Lorraine St. Hilaire | 12 | Daughter | — | New Hampshire |
| 48 | Albert Jr. St. Hilaire | 7 | Son | — | Massachusetts |
| 49 | Frank Mania | 48 | Head | Laborer | Massachusetts |
| 50 | Francis Mania | 21 | Son | Sorter | Massachusetts |
| 51 | William Mania | 20 | Son | New Worker | Massachusetts |
| 52 | Dorothy Mania | 18 | Daughter | Machine Operator | Massachusetts |
| 53 | Marie Mania | 17 | Daughter | New Worker | Massachusetts |
| 54 | John Mania | 15 | Son | — | Massachusetts |
| 55 | James Mania | 11 | Son | — | Massachusetts |
| 56 | Mary O'Toole | 41 | Head | — | Massachusetts |
| 57 | John O'Toole | 21 | Son | Machinist | Massachusetts |
| 58 | William Menolage | 25 | Head | Jack-Hammer Man | Massachusetts |
| 59 | Elsie Menolage | 25 | Wife | — | Massachusetts |
| 60 | William Jr. Menolage | 4 | Son | — | Massachusetts |
| 61 | Richard Menolage | 1 | Son | — | Massachusetts |
| 62 | Joseph Tervilla | 34 | Head | Painter | Massachusetts |
| 63 | Mary Tervilla | 32 | Wife | — | Massachusetts |
| 64 | Joseph Tervilla | 9 | Son | — | Massachusetts |
| 65 | Francis Tervilla | 3 | Son | — | Massachusetts |
| 66 | Mary Tervilla | 2 | Daughter | — | Massachusetts |
| 67 | Rita Tervilla | 1 | Daughter | — | Massachusetts |
| 68 | Mary Moore | 60 | Aunt | Cleaner | Massachusetts |
| 69 | Asley Gray | 47 | Head | Carpenter | Illinois |
| 70 | Anna Gray | 32 | Wife | — | Irish Free State |
| 71 | Asley Jr. Gray | 21 | Son | Machinist | Massachusetts |
| 72 | Geraldine Gray | 19 | Daughter | Counter-Girl | Missouri |
| 73 | Florence Gray | 17 | Daughter | — | Massachusetts |
| 74 | Robert Gray | 15 | Son | — | Massachusetts |
| 75 | Helen Gray | 12 | Daughter | — | Massachusetts |
| 76 | Margaret Gray THIS PERSON | 10 | Daughter | — | Massachusetts |
| 77 | James Gray | 4 | Son | — | Massachusetts |
| 78 | Clarence S. Donald | 46 | Head | Chauffeur | New Hampshire |
| 79 | Edith M. Donald | 46 | Wife | — | Canada-English |
| 80 | Clarence Jr. Donald | 22 | Son | Restaurant Worker | Massachusetts |
Related Census Records
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)