MJ
Mary Joyce — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Suffolk-County, Massachusetts
Our Model Tree links this Mary Joyce across the 1930 and 1940 US Censuses in Suffolk-County, Massachusetts (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 8-person household.
Age 11
b. ~1929
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Suffolk-County, Massachusetts |
| Surname | Joyce |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Scranton |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Pennsylvania |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Township / Ward | Boston City |
| Est. Birth Year | ~1929 |
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 |
|---|---|---|---|---|
| Dorothy Joyce | Daughter | — | 5 | ~1935 |
| Joseph Joyce | Head | — | 48 | ~1892 |
| Helen Joyce | Daughter | — | 3 | ~1937 |
| Mary Joyce | Spouse | — | 40 | ~1900 |
| Ann Joyce | Daughter | — | 8 | ~1932 |
| Virginia Joyce | Daughter | — | 9 | ~1931 |
| Joseph Joyce | Son | — | 7 | ~1933 |
| Mary Joyce | Daughter | — | 11 | ~1929 |
Census Appearances
1930
Suffolk, Massachusetts
Daughter, age 1
Suffolk, Massachusetts · implied b. ~1929 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Joyce |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Daughter, age 11
Suffolk-County, Massachusetts · implied b. ~1929 — 8 household members
| Surname | Joyce |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Scranton |
| Highest Grade | No 6 |
| 1935 Residence | Pennsylvania |
| 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 Joyce across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Joyce
Daughter · 1940 · age 11 · b. ~1929 · Massachusetts
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Sibling
Virginia Joyce
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Joyce
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Joyce
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ann Joyce
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Joyce
Sibling · 1940 · age 5
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-t0627-01671-00548)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Margaret Gibbons | 68 | Mother-in-law | — | Eire |
| 2 | Patrick Flaherty | 40 | Head | Laborer | Eire |
| 3 | Agnes Flaherty | 40 | Wife | — | Eire |
| 4 | Nora Scanlon | 65 | Head | — | Eire |
| 5 | William Scanlon | 30 | Son | Laborer | Eire |
| 6 | John Joseph Scanlon | 28 | Son | Laborer | Eire |
| 7 | Joseph Casano | 48 | Head | Barber | Italy |
| 8 | Catherine Casano | 37 | Wife | — | Italy |
| 9 | Joseph Casano | 18 | Son | Machinist Helper | Massachusetts |
| 10 | Catherine Casano | 16 | Daughter | — | Massachusetts |
| 11 | Andrew Casano | 52 | Head | Proprietor | Italy |
| 12 | Marchesa Casano | 42 | Wife | — | Italy |
| 13 | Catherine Casano | 21 | Daughter | New Worker | Massachusetts |
| 14 | Andrew Casano | 19 | Son | — | Massachusetts |
| 15 | Mary Ann Casano | 18 | Daughter | — | Massachusetts |
| 16 | William Casano | 1 | Son | — | Massachusetts |
| 17 | Jasper Casano | 36 | Head | Machinist | Italy |
| 18 | Gertrude Casano | 31 | Wife | — | Massachusetts |
| 19 | Ralph Casano | 4 | Son | — | Massachusetts |
| 20 | Mariano Casano | 49 | Brother | Potterer | Italy |
| 21 | Joseph Joyce | 48 | Head | Laborer | Eire |
| 22 | Mary Joyce | 40 | Wife | — | Eire |
| 23 | Mary Joyce THIS PERSON | 11 | Daughter | — | Massachusetts |
| 24 | Virginia Joyce | 9 | Daughter | — | Massachusetts |
| 25 | Ann Joyce | 8 | Daughter | — | Massachusetts |
| 26 | Joseph Joyce | 7 | Son | — | Massachusetts |
| 27 | Dorothy Joyce | 5 | Daughter | — | Pennsylvania |
| 28 | Helen Joyce | 3 | Daughter | — | Pennsylvania |
| 29 | Annie T Casey | 54 | Head | — | Eire |
| 30 | John J Casey | 21 | Son | Operator | Massachusetts |
| 31 | Ann T Casey | 18 | Daughter | Book-Keeper | Massachusetts |
| 32 | Joseph Casey | 16 | Son | — | Massachusetts |
| 33 | John Sullivan | 37 | Head | Stamper | Eire |
| 34 | Mary Sullivan | 35 | Wife | — | Eire |
| 35 | Paul Sullivan | 10 | Son | — | Massachusetts |
| 36 | Eleanor Sullivan | 8 | Daughter | — | Massachusetts |
| 37 | Francis J Sullivan | 6 | Son | — | Massachusetts |
| 38 | Thomas Sullivan | 4 | Son | — | Massachusetts |
| 39 | Nancy Sullivan | 3 | Daughter | — | Massachusetts |
| 40 | Joseph Clifford | 38 | Head | Bakery Deliverer | 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)