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.~1921), then head of a 9-person household.
Age 19
b. ~1921
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 | 19 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Additional Details | |
| Occupation | Wrapper |
| Industry | Bakery |
| Class of Worker | PW |
| Hours Worked | 27 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Wrapper |
| Township / Ward | Boston |
| Est. Birth Year | ~1921 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Bridget Joyce | Daughter | — | 15 | ~1925 |
| Margaret Joyce | Daughter | — | 8 | ~1932 |
| Coleman Joyce | Head | — | 56 | ~1884 |
| Mary Joyce | Daughter | — | 19 | ~1921 |
| Barbara Joyce | Daughter | — | 4 | ~1936 |
| Catherine Joyce | Daughter | — | 10 | ~1930 |
| Joseph Joyce | Son | — | 7 | ~1933 |
| Annie Joyce | Spouse | — | 46 | ~1894 |
| Anna Joyce | Daughter | — | 16 | ~1924 |
Census Appearances
1930
Suffolk, Massachusetts
Daughter, age 8
Suffolk, Massachusetts · implied b. ~1922 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Joyce |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Suffolk-County, Massachusetts
Daughter, age 19
Suffolk-County, Massachusetts · implied b. ~1921 — 9 household members
| Surname | Joyce |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Boston |
| 1935 Residence (County) | Suffolk |
| Occupation | Wrapper |
| Industry | Bakery |
| Class of Worker | PW |
| Hours Worked | 27 |
| Highest Grade | H 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 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 19 · b. ~1921 · Massachusetts
★ You are viewing this record
Sibling
Catherine Joyce
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Joyce
Sibling · 1940 · age 8
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
Anna Joyce
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bridget Joyce
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Barbara Joyce
Sibling · 1940 · age 4
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-t0627-01664-00665)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Katherine Succie | 19 | Daughter | Button Hole Operator | Massachusetts |
| 42 | Wendell Succie | 18 | Son | Button Hole Operator | Massachusetts |
| 43 | Neil Succie | 16 | Son | News Worker | Massachusetts |
| 44 | Nicholas Succie | 14 | Son | News Worker | Massachusetts |
| 45 | John Succie | 11 | Son | — | Massachusetts |
| 46 | Grace Mary Succie | 13 | Daughter | — | Massachusetts |
| 47 | Cornelius J. Dodge | 44 | Head | Supervisor #3 | Massachusetts |
| 48 | Catherine L. Dodge | 42 | Wife | — | Massachusetts |
| 49 | Ellen J. Dodge | 16 | Daughter | — | Massachusetts |
| 50 | Mary T. Dodge | 15 | Daughter | — | Massachusetts |
| 51 | Loretta L. Dodge | 13 | Daughter | — | Massachusetts |
| 52 | William F. Dodge | 11 | Son | — | Massachusetts |
| 53 | Cornelius Dodge | 9 | Son | — | Massachusetts |
| 54 | Edward G. Dodge | 5 | Son | — | Massachusetts |
| 55 | Delia Casey | 57 | Head | — | Ireland |
| 56 | John John | 70 | Head | — | Eire |
| 57 | Coleman Joyce | 56 | Head | Laborer | Eire |
| 58 | Annie Joyce | 46 | Wife | — | Eire |
| 59 | Mary Joyce THIS PERSON | 19 | Daughter | Wrapper | Massachusetts |
| 60 | Anna Joyce | 16 | Daughter | — | Massachusetts |
| 61 | Bridget Joyce | 15 | Daughter | — | Massachusetts |
| 62 | Catherine Joyce | 10 | Daughter | — | Massachusetts |
| 63 | Margaret Joyce | 8 | Daughter | — | Massachusetts |
| 64 | Joseph Joyce | 7 | Son | — | Massachusetts |
| 65 | Barbara Joyce | 4 | Daughter | — | Massachusetts |
| 66 | Stephen Higgins | 43 | Head | Teacher | Massachusetts |
| 67 | Marion C. Higgins | 37 | Sister | Stenographer | Massachusetts |
| 68 | Francis Mcneil | 34 | Head | Painter | Massachusetts |
| 69 | Lillian Mcneil | 34 | Wife | — | Massachusetts |
| 70 | Nancy Mcneil | 11 | Daughter | — | Massachusetts |
| 71 | Hazel O. Norcross | 54 | Head | Housekeeper | Massachusetts |
| 72 | Merle Jefferson | 24 | Roomer | Waitress | Massachusetts |
| 73 | Anne Harding | 3 | Daughter | — | Massachusetts |
| 74 | Charles Harding | 1 | Son | — | Massachusetts |
| 75 | Joseph Coleman | 33 | Head | Coal Teamster | Massachusetts |
| 76 | Lucie Coleman | 29 | Wife | — | Massachusetts |
| 77 | James (A) Oliver | 31 | Head | Cook | Portugal |
| 78 | Isabelle Oliver | 31 | Wife | Mattress Stitcher | Rhode Island |
| 79 | Joseph Oliver | 4 | Son | — | Massachusetts |
| 80 | Bertram P. Hagen | 51 | Roomer | Car Operator | Vermont |
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)