MS
Mary Sears — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Mary Sears across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1915), then head of a 8-person household.
Age 25
b. ~1915
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Sears |
| Given Name | Mary E |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| Additional Details | |
| Occupation | 0 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | 0 |
| Township / Ward | Boston |
| Est. Birth Year | ~1915 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Jean Mclaughlin | Other | — | 45 | ~1895 |
| Emma Wilton | Other | — | 70 | ~1870 |
| Richard Sears | Son | — | 24 | ~1916 |
| Richard Sears | Head | — | 73 | ~1867 |
| Clara Somerville | Other | — | 39 | ~1901 |
| Susan Sears | Spouse | — | 54 | ~1886 |
| Emma Mayer | Other | — | 50 | ~1890 |
| Mary Sears | Daughter | — | 25 | ~1915 |
Census Appearances
1930
Suffolk, Massachusetts
Daughter, age 14
Suffolk, Massachusetts · implied b. ~1916 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Serra |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Italy |
| Mother's Birthplace | Italy |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Daughter, age 25
Suffolk-County, Massachusetts · implied b. ~1915 — 8 household members
| Surname | Sears |
| Given Name | Mary E |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| Occupation | 0 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 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 Mary Sears across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Sears
Daughter · 1940 · age 25 · b. ~1915 · Massachusetts
★ You are viewing this record
Sibling
Richard Sears
Sibling · 1940 · age 24
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-t0627-01663-00585)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Peggy D Porter | 36 | Daughter | Assistant Researcher | Massachusetts |
| 42 | Burnham Porter | 34 | son | Broker | Massachusetts |
| 43 | Etta Mccarrol | 55 | servant | Waitress | Canada-English |
| 44 | Margaret Malan | 38 | servant | Cook | Scotland |
| 45 | Lucie Booth | 56 | head | — | Canada-English |
| 46 | Ferdinand Clayson | 44 | head | Janitor | New York |
| 47 | Lydia Clayson | 30 | wife | 0 | New York |
| 48 | Shirley Speed | 39 | head | Realtor | Maine |
| 49 | Flora Speed | 70 | mother | 0 | Oregon |
| 50 | Jane Mciver | 26 | head | Economist | England |
| 51 | Hanna Mciver | 25 | wife | — | New York |
| 52 | Robert Brooks | 41 | head | Teacher-Artist | Massachusetts |
| 53 | Barbara Brooks | 33 | wife | — | Massachusetts |
| 54 | Doris M Parkman | 38 | head | — | Oregon |
| 55 | Antonia Parkman | 10 | daughter | — | New York |
| 56 | Penelope Parkman | 2 | daughter | — | Massachusetts |
| 57 | Deborah Parkman | 1 | daughter | — | Massachusetts |
| 58 | James M Parkman | 1 | son | — | Massachusetts |
| 59 | Alma Wills | 25 | servant | Nurse | Massachusetts |
| 60 | Seraphie Jarrett | 33 | servant | Cook | Canada-French |
| 61 | Sally Fairchild | 70 | head | 0 | Massachusetts |
| 62 | Margaret Carruthers | 56 | servant | Servant | England |
| 63 | Florence Jones | 55 | head | 0 | Maine |
| 64 | Lenora Jones | 61 | sister | 0 | Maine |
| 65 | Rose Brittney | 72 | head | 0 | Canada-English |
| 66 | Emma Marcotte | 56 | head | 0 | Massachusetts |
| 67 | Emile Marcotte | 80 | sister | 0 | Canada-English |
| 68 | James J Fowler | 24 | head | Clerk | Massachusetts |
| 69 | Claire Fowler | 22 | wife | — | Massachusetts |
| 70 | Richard Sears | 73 | head | Lawyer | Massachusetts |
| 71 | Susan D Sears | 54 | wife | 0 | New York |
| 72 | Mary E Sears THIS PERSON | 25 | daughter | 0 | Massachusetts |
| 73 | Richard Jr Sears | 24 | son | Surveyor | Massachusetts |
| 74 | Clara Somerville | 39 | servant | Cook | Canada-English |
| 75 | Emma Mayer | 50 | servant | Chamber-Maid | Latvia |
| 76 | Jean Mclaughlin | 45 | servant | Waitress | Scotland |
| 77 | Emma Wilton | 70 | servant | Nursemaid | Massachusetts |
| 78 | Ernest A Codman | 70 | head | Doctor | Massachusetts |
| 79 | Catherine Codman | 68 | wife | 0 | Massachusetts |
| 80 | Mary Connors | 58 | servant | Cook | 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)