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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.~1909), then head of a 8-person household.
Age 31
b. ~1909
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Gray |
| Given Name | Margaret C. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | Stenographer |
| Industry | Iron Mfg Co |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 236 |
| Highest Grade | H-4 |
| 1935 Residence | Same Place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Stenographer |
| Township / Ward | Boston City |
| Est. Birth Year | ~1909 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Gray | Spouse | — | 65 | ~1875 |
| Margaret Gray | Daughter | — | 31 | ~1909 |
| Susan Gray | Daughter | — | 27 | ~1913 |
| John Gray | Son | — | 33 | ~1907 |
| Hugh Gray | Son | — | 22 | ~1918 |
| Francis Gray | Son | — | 30 | ~1910 |
| Patrick Gray | Head | — | 66 | ~1874 |
| Rose Gray | Daughter | — | 28 | ~1912 |
Census Appearances
1930
Suffolk, Massachusetts
Daughter, age 22
Suffolk, Massachusetts · implied b. ~1908 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gray |
| Given Name | Margaret A |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Northern Ireland |
| Mother's Birthplace | Northern Ireland |
| Occupation | Stenographer |
| Industry | Factory Shoe |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Daughter, age 31
Suffolk-County, Massachusetts · implied b. ~1909 — 8 household members
| Surname | Gray |
| Given Name | Margaret C. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Occupation | Stenographer |
| Industry | Iron Mfg Co |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 236 |
| Highest Grade | H-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 31 · b. ~1909 · Massachusetts
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Sibling
Susan Gray
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rose Gray
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Gray
Sibling · 1940 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hugh Gray
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Gray
Sibling · 1940 · age 33
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
39 people indexed on this census page (nara:1940:m-t0627-01679-00301)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Elizabeth Allen | 60 | Wife | — | Massachusetts |
| 42 | Charles Allen | 27 | Son | Credit Mgr | Massachusetts |
| 43 | Rose Allen | 20 | Daughter | — | Massachusetts |
| 44 | Michael Gullienane | 40 | Head | Truck Driver | Eire |
| 45 | Helen Gullienane | 35 | Wife | — | Eire |
| 46 | Leroy Couson | 28 | Head | Cutter | Massachusetts |
| 47 | Elizabeth Couson | 58 | Mother | Stitcher | Massachusetts |
| 48 | Herbert Couson | 22 | Brother | Laborer Road | Massachusetts |
| 49 | Helen F. Briggs | 52 | Head | Mechanic | Massachusetts |
| 50 | Marie Briggs | 60 | Wife | — | Canada English |
| 51 | Helen Briggs | 28 | Daughter | Embalmer | Massachusetts |
| 52 | Lillian Briggs | 26 | Daughter | Clerk File | Massachusetts |
| 53 | Eugene Briggs | 24 | Son | Salesman | Massachusetts |
| 54 | Catherine Gately | 21 | Head | Sewing Project | Massachusetts |
| 55 | Eileen Gately | 31 | Sister | — | Massachusetts |
| 56 | Michael J. Farra | 45 | Head | Salesman | Eire |
| 57 | Helen Farra | 35 | Wife | — | Massachusetts |
| 58 | Patrick Gray | 66 | Head | — | Eire |
| 59 | Margaret Gray | 65 | Wife | — | Eire |
| 60 | John J. Gray | 33 | Son | Checker | Massachusetts |
| 61 | Margaret C. Gray THIS PERSON | 31 | Daughter | Stenographer | Massachusetts |
| 62 | Francis P. Gray | 30 | Son | Clerk | Massachusetts |
| 63 | Rose G. Gray | 28 | Daughter | Stenographer | Massachusetts |
| 64 | Susan M. Gray | 27 | Daughter | Stenographer | Massachusetts |
| 65 | Hugh J. Gray | 22 | Son | Clerk, Stock | Massachusetts |
| 66 | Donald Mclean | 67 | Head | Carpenter | Canada English |
| 67 | Eliza Mclean | 67 | Wife | — | Canada English |
| 68 | Alexander Jamieson | 34 | Son-in-law | Printer | Canada English |
| 69 | Jean Jamieson | 29 | Daughter | — | Canada English |
| 70 | Charles Jamieson | 4 | Grandson | — | Massachusetts |
| 71 | William B. Powers | 47 | Head | Guard | Eire |
| 72 | Mary J. Powers | 41 | Wife | — | Massachusetts |
| 73 | William B. Jr. Powers | 15 | Son | — | Massachusetts |
| 74 | Shelby M. Powers | 11 | Daughter | — | Massachusetts |
| 75 | Winifred Powers | 13 | Daughter | — | Massachusetts |
| 76 | Patricia Powers | 11 | Daughter | — | Massachusetts |
| 77 | Robert Powers | 4 | Son | — | Massachusetts |
| 78 | Cronin, Mary G. Powers | 22 | Daughter | Clerk, Sales | Massachusetts |
| 79 | Patrick J. Donohue | 66 | Head | Porter | Eire |
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)