MC
Mary Casey — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Mary Casey across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1917), then head of a 13-person household.
Age 23
b. ~1917
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Casey |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | Shoe stitcher |
| Industry | Shoe factory |
| Class of Worker | PW |
| Hours Worked | 11 |
| Income (1939) | 496 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Shoe Stitcher |
| Township / Ward | Boston City |
| Est. Birth Year | ~1917 |
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.
13 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Margaret Casey | Daughter | — | 16 | ~1924 |
| Genevieve Casey | Daughter | — | 21 | ~1919 |
| Mary Casey | Daughter | — | 23 | ~1917 |
| John Casey | Head | — | 53 | ~1887 |
| Charles Casey | Son | — | 15 | ~1925 |
| James Casey | Son | — | 19 | ~1921 |
| Robert Casey | Son | — | 25 | ~1915 |
| John Casey | Son | — | 30 | ~1910 |
| Albert Casey | Son | — | 14 | ~1926 |
| Lawrence Casey | Son | — | 22 | ~1918 |
| Paul Casey | Son | — | 18 | ~1922 |
| Arthur Casey | Son | — | 10 | ~1930 |
| Mary Casey | Spouse | — | 51 | ~1889 |
Census Appearances
1930
Suffolk, Massachusetts
Daughter, age 13
Suffolk, Massachusetts · implied b. ~1917 — 15 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Casey |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Massachusetts |
| Mother's Birthplace | Massachusetts |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Daughter, age 23
Suffolk-County, Massachusetts · implied b. ~1917 — 13 household members
| Surname | Casey |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston City |
| 1935 Residence (County) | Suffolk |
| Occupation | Shoe stitcher |
| Industry | Shoe factory |
| Class of Worker | PW |
| Hours Worked | 11 |
| Income (1939) | 496 |
| Highest Grade | No 8 |
| 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 Mary Casey across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Casey
Daughter · 1940 · age 23 · b. ~1917 · Massachusetts
★ You are viewing this record
Sibling
Paul Casey
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Albert Casey
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Genevieve Casey
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Casey
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Casey
Sibling · 1940 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Casey
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Casey
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Casey
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Casey
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lawrence Casey
Sibling · 1940 · age 22
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-t0627-01682-00005)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Dennis Enright | 70 | Head | — | Irish Free State |
| 2 | Elizabeth Enright | 73 | Wife | — | Irish Free State |
| 3 | Thomas Enright | 47 | Son | Accountant | Massachusetts |
| 4 | John Enright | 47 | Son | Lawyer | Massachusetts |
| 5 | Margaret Enright | 45 | Daughter | Typist | Massachusetts |
| 6 | Helen Enright | 34 | Daughter | Typist | Massachusetts |
| 7 | Helen Mcintire | 30 | Head | Soldier | Maine |
| 8 | George E. Toye | 20 | Partner | Soldier | Massachusetts |
| 9 | Alexander Andoulis | 48 | Partner | Soldier | Lithuania |
| 10 | Delphin Handy | 33 | Partner | Soldier | Rhode Island |
| 11 | Charles M. Seeley | 49 | Partner | Soldier | Connecticut |
| 12 | Moto Habu | 73 | Head | Valet | Japan |
| 13 | Patrick J. Callanan | 55 | Head | — | Irish Free State |
| 14 | Nora Callanan | 59 | Wife | — | Irish Free State |
| 15 | Patricia Callanan | 32 | Daughter | Window Dresser | Irish Free State |
| 16 | Michael J. Callanan | 31 | Son | Carpenter | Irish Free State |
| 17 | Patrick J. Jr. Callanan | 29 | Son | Kennel Keeper | Irish Free State |
| 18 | Victor Callanan | 28 | Son | Grocery | Irish Free State |
| 19 | — | None | — | — | — |
| 20 | John G. Casey | 53 | Head | Laborer | Massachusetts |
| 21 | Mary E. Casey | 51 | Wife | — | Massachusetts |
| 22 | John G. Jr. Casey | 30 | Son | Truck Driver | Massachusetts |
| 23 | Robert Casey | 25 | Son | Laborer | Massachusetts |
| 24 | Mary Casey THIS PERSON | 23 | Daughter | Shoe Stitcher | Massachusetts |
| 25 | Lawrence Casey | 22 | Son | Salesman | Massachusetts |
| 26 | Genevieve Casey | 21 | Daughter | — | Massachusetts |
| 27 | James A. Casey | 19 | Son | — | Massachusetts |
| 28 | Paul Casey | 18 | Son | Laborer | Massachusetts |
| 29 | Margaret Casey | 16 | Daughter | — | Massachusetts |
| 30 | Charles Casey | 15 | Son | — | Massachusetts |
| 31 | Albert Casey | 14 | Son | — | Massachusetts |
| 32 | Arthur Casey | 10 | Son | — | Massachusetts |
| 33 | Louis Dormiris | 74 | Head | — | Greece |
| 34 | Catherine Dormiris | 53 | Wife | Custodial Employee | Greece |
| 35 | Christophe Dormiris | 29 | Son | Salesman | Massachusetts |
| 36 | Portia Dormiris | 27 | Daughter | Typist | Massachusetts |
| 37 | Peter D. Dormiris | 22 | Son | Assistant Teacher | Massachusetts |
| 38 | Jane Doherty | 71 | Head | — | Ireland |
| 39 | Sandra S. Farnese | 43 | Head | Salesman | Italy |
| 40 | Vita Farnese | 43 | Wife | — | Italy |
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)