MS
Mary Scanlon — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Mary Scanlon across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1911), then head of a 8-person household.
Age 29
b. ~1911
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Scanlon |
| Given Name | Mary E |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | Buffer |
| Industry | Chemical |
| Class of Worker | PW |
| Hours Worked | 0 |
| Income (1939) | 420 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Buffer |
| Township / Ward | Boston City |
| Est. Birth Year | ~1911 |
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 |
|---|---|---|---|---|
| Patrick Scanlon | Head | — | 56 | ~1884 |
| Catherine Scanlon | Spouse | — | 57 | ~1883 |
| Edward Scanlon | Son | — | 25 | ~1915 |
| Catherine Scanlon | Daughter | — | 23 | ~1917 |
| James Scanlon | Son | — | 27 | ~1913 |
| Mary Scanlon | Daughter | — | 29 | ~1911 |
| Joseph Scanlon | Son | — | 22 | ~1918 |
| Richard Scanlon | Son | — | 18 | ~1922 |
Census Appearances
1930
Suffolk, Massachusetts
Daughter, age 19
Suffolk, Massachusetts · implied b. ~1911 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Scanlan |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Age at First Marriage | 19 |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Occupation | Buffer |
| Industry | Factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Daughter, age 29
Suffolk-County, Massachusetts · implied b. ~1911 — 8 household members
| Surname | Scanlon |
| Given Name | Mary E |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Occupation | Buffer |
| Industry | Chemical |
| Class of Worker | PW |
| Hours Worked | 0 |
| Income (1939) | 420 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same House |
| 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 Scanlon across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Scanlon
Daughter · 1940 · age 29 · b. ~1911 · Massachusetts
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Sibling
Edward Scanlon
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Scanlon
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Scanlon
Sibling · 1940 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Scanlon
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Scanlon
Sibling · 1940 · age 18
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-t0627-01664-00362)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Selina R Hughes | 68 | wife | — | Canada English |
| 2 | John H Kenney | 51 | Head | Laborer | Massachusetts |
| 3 | Elizabeth Kenney | 51 | wife | — | Massachusetts |
| 4 | Alice Kenney | 19 | daughter | Bus Girl | Massachusetts |
| 5 | Lillian Kenney | 18 | daughter | — | Massachusetts |
| 6 | John Kenney | 16 | son | — | Massachusetts |
| 7 | Eileen Kenney | 14 | daughter | — | Massachusetts |
| 8 | Virginia Kenney | 12 | daughter | — | Massachusetts |
| 9 | Ruth Kenney | 9 | daughter | — | Massachusetts |
| 10 | Catherine Pendleton | 55 | Head | — | Massachusetts |
| 11 | John R Begley | 84 | Head | — | Eire |
| 12 | Mary Begley | 72 | sister | — | Eire |
| 13 | Patrick J O'Mara | 58 | Head | Watchman | Eire |
| 14 | Bridget A O'Mara | 61 | wife | — | Eire |
| 15 | Gertrude Kenneally | 30 | Head | — | Massachusetts |
| 16 | Frances Gongitano | 62 | Head | — | Italy |
| 17 | Antonette Lindi | 56 | Head | — | Italy |
| 18 | Henry Lindi | 28 | son | Machinist | Massachusetts |
| 19 | Patrick Scanlon | 56 | Head | Laborer | Massachusetts |
| 20 | Catherine Scanlon | 57 | wife | — | Massachusetts |
| 21 | Catherine Scanlon | 23 | daughter | Operator | Massachusetts |
| 22 | Mary E Scanlon THIS PERSON | 29 | daughter | Buffer | Massachusetts |
| 23 | James Scanlon | 27 | son | New Worker | Massachusetts |
| 24 | Edward Scanlon | 25 | son | Clerk | Massachusetts |
| 25 | Joseph Scanlon | 22 | son | New Worker | Massachusetts |
| 26 | Richard Scanlon | 18 | son | New Worker | Massachusetts |
| 27 | Anthony Facella | 67 | Head | — | Italy |
| 28 | Josephine Facella | 60 | wife | — | Italy |
| 29 | Josephine Facella | 26 | daughter | Stitcher | New York |
| 30 | Anna Facella | 24 | daughter | Packer | New York |
| 31 | Joseph Facella | 22 | son | Laborer | New York |
| 32 | John Sheper | 57 | Head | Laborer | Lithuania |
| 33 | Agnes Sheper | 50 | wife | — | Lithuania |
| 34 | Vincent Guilfoyle | 57 | Head | Shipper | Massachusetts |
| 35 | Richard Guilfoyle | 34 | son | Buff Cutter | Massachusetts |
| 36 | Catherine Guilfoyle | 27 | daughter | Operator | Massachusetts |
| 37 | Leo Guilfoyle | 20 | son | Clerk | Massachusetts |
| 38 | John N Tracy | 51 | Head | Clothing Cutter | Massachusetts |
| 39 | Mary A Tracy | 43 | wife | — | Massachusetts |
| 40 | Eleanor M Tracy | 12 | daughter | — | Massachusetts |
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)