MS
Mary Smith — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Mary Smith across the 1920, 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a spouse (b.~1899), then head of a 12-person household.
Age 41
b. ~1899
Female
Spouse
Born: New York
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Smith |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 41 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (County) | SUFFOLK |
| Additional Details | |
| Occupation | 0 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | 0 |
| Township / Ward | Boston City |
| Est. Birth Year | ~1899 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Margerie Smith | Daughter | — | 3 | ~1937 |
| Jeanette Smith | Daughter | — | 14 | ~1926 |
| Marion Smith | Daughter | — | 16 | ~1924 |
| Theresa Smith | Daughter | — | 7 | ~1933 |
| Charles Smith | Head | — | 54 | ~1886 |
| Herbert Gross | Other | — | 45 | ~1895 |
| Thomas Smith | Son | — | 23 | ~1917 |
| Albert Smith | Son | — | 13 | ~1927 |
| Arthur Smith | Son | — | 21 | ~1919 |
| Walter Smith | Son | — | 1 | ~1939 |
| Charles Smith | Son | — | 19 | ~1921 |
| Mary Smith | Spouse | — | 41 | ~1899 |
Census Appearances
1920
Suffolk, Massachusetts
Spouse, age 21
Suffolk, Massachusetts · implied b. ~1899 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 21 |
| Marital Status | Married |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Suffolk, Massachusetts
Spouse, age 31
Suffolk, Massachusetts · implied b. ~1899 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Mary |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | Black |
| Age | 31 |
| Marital Status | Married |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1940
Suffolk-County, Massachusetts
Spouse, age 41
Suffolk-County, Massachusetts · implied b. ~1899 — 12 household members
| Surname | Smith |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 41 |
| Marital Status | Married |
| Birthplace | New York |
| 1935 Residence (County) | SUFFOLK |
| Occupation | 0 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 Mary Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Smith
Spouse · 1940 · age 41 · b. ~1899 · Massachusetts
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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-t0627-01667-00316)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Martha E. Morse | 1 | Grand-daughter | — | Massachusetts |
| 42 | David Yearwood | 47 | Head | Cook | West Indies |
| 43 | Amos E. Blocker | 50 | Head | Laborer | British West Indies |
| 44 | Elizabeth Prevost | 60 | Head | Cook | Canada French |
| 45 | Lettia Hamilton | 13 | Nephew | — | Canada French |
| 46 | Bessie Graves | 50 | Head | 0 | Massachusetts |
| 47 | Frank Johnson | 50 | Head | — | Canada English |
| 48 | Luella Haskell | 45 | Head | — | Canada English |
| 49 | Joseph Minton | 30 | Head | 48 | Massachusetts |
| 50 | Ralph Boie | 47 | Head | 32 | Massachusetts |
| 51 | Walter Raynor | 52 | Head | 32 | Massachusetts |
| 52 | Lelia Fosier | 73 | Head | 0 | North Carolina |
| 53 | Roland Fosier | 36 | Son | 0 | Massachusetts |
| 54 | Gene Cannan | 36 | Head | 48 | Maryland |
| 55 | Hammet Rock | 61 | Head | 0 | Massachusetts |
| 56 | Joseph Miller | 49 | Head | — | Portugal |
| 57 | Alberto Cardoza | 42 | Head | Porter | Portugal |
| 58 | Jennie Wheary | 30 | Head | Maid | Canada English |
| 59 | Myrtle Wheary | 32 | Sister | — | Canada English |
| 60 | Emma Edwards | 30 | Head | Laborer | Canada English |
| 61 | Edward Fowler | 55 | Head | Laborer | Canada English |
| 62 | James Thornell | 52 | Head | 0 | North Carolina |
| 63 | Bertha Waters | 61 | Head | 0 | Maryland |
| 64 | Sara Walker | 39 | Head | 0 | South Carolina |
| 65 | Lola Mallory | 65 | Head | 0 | North Carolina |
| 66 | Roland Lee | 58 | Head | 0 | North Carolina |
| 67 | Mary Moore | 70 | Head | 0 | North Carolina |
| 68 | Josephine Brown | 53 | Head | 0 | Georgia |
| 69 | Charles Smith | 54 | Head | 40 | Virginia |
| 70 | Mary Smith THIS PERSON | 41 | Wife | 0 | New York |
| 71 | Thomas Smith | 23 | Son | 0 | Massachusetts |
| 72 | Arthur Smith | 21 | Son | 0 | Massachusetts |
| 73 | Charles Smith | 19 | Son | 0 | Massachusetts |
| 74 | Marion Smith | 16 | Daughter | — | Massachusetts |
| 75 | Jeanette Smith | 14 | Daughter | — | Massachusetts |
| 76 | Albert Smith | 13 | Son | — | Massachusetts |
| 77 | Theresa Smith | 7 | Daughter | — | Massachusetts |
| 78 | Margerie Smith | 3 | Daughter | — | Massachusetts |
| 79 | Walter Smith | 1 | Son | — | Massachusetts |
| 80 | Herbert Gross | 45 | Brother | 0 | New York |
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)