MJ
Mary Joyce — 1940 US Census Record
Model Tree available1940 United States Federal Census · Worcester-County, Massachusetts
Our Model Tree links this Mary Joyce across the 1920, 1930 and 1940 US Censuses in Worcester-County, Massachusetts (XGBoost, ~Confirmed), with identified parents Charles & Agnes — first a daughter (b.~1913), then head of a 5-person household.
Age 27
b. ~1913
Female
Daughter
Born: Massachusetts
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Worcester-County, Massachusetts |
| Surname | Joyce |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Worcester city |
| 1935 Residence (County) | Worcester |
| Additional Details | |
| Occupation | Checker |
| Industry | Hotel |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1000 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
| Occupation | Checker |
| Township / Ward | Worcester City |
| Est. Birth Year | ~1913 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Charles Joyce | Head | — | 70 | ~1870 |
| Charles Joyce | Son | — | 31 | ~1909 |
| Agnes Joyce | Spouse | — | 56 | ~1884 |
| Thomas Joyce | Son | — | 23 | ~1917 |
| Mary Joyce | Daughter | — | 27 | ~1913 |
Census Appearances
1920
Worcester, Massachusetts
Daughter, age 7
Worcester, Massachusetts · implied b. ~1913 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Joyce |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Vermont |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1930
Worcester, Massachusetts
Daughter, age 17
Worcester, Massachusetts · implied b. ~1913 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Joyce |
| Given Name | Mary A |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| Father's Birthplace | Vermont |
| Mother's Birthplace | Ireland |
| Occupation | school |
| Can Read/Write | Yes |
| Birth State | Massachusetts |
| Birth Country | United States |
| Birthplace (normalized) | massachusetts |
1940
Worcester-County, Massachusetts
Daughter, age 27
Worcester-County, Massachusetts · implied b. ~1913 — 5 household members
| Surname | Joyce |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Massachusetts |
| 1935 Residence (City) | Worcester city |
| 1935 Residence (County) | Worcester |
| Occupation | Checker |
| Industry | Hotel |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1000 |
| Highest Grade | Hs 4 |
| 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 Joyce across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Charles Joyce (~0.92 confidence) and mother Agnes Joyce (~0.92 confidence) and mother Agnes Joyce (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Charles Joyce
b. ~1870
Source father
● Household
· direct · ~0.92
Mother
Agnes Joyce
b. ~1884
Source mother
● Household
· direct · ~0.92
Mother
Agnes Joyce
b. ~1884
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Joyce
Daughter · 1940 · age 27 · b. ~1913 · Massachusetts
★ You are viewing this record
Sibling
Charles Joyce
Sibling · 1940 · age 31
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Joyce
Sibling · 1940 · age 23
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 — Worcester-County, Massachusetts
Open full size
1940 US Federal Census — Worcester-County, Massachusetts
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01718-00838)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ruth Dyer | 48 | Sister | Secretary | Massachusetts |
| 42 | Helen Musgrave | 47 | Head | Waitress | Massachusetts |
| 43 | Dorothy A. Musgrave | 20 | Daughter | — | Massachusetts |
| 44 | Margaret Knowlton | 43 | Head | Teacher | Massachusetts |
| 45 | Katte Knowlton | 73 | Mother | — | Massachusetts |
| 46 | George Quavillon | 45 | Head | Laborer Carpenter | Vermont |
| 47 | Eldora Quavillon | 38 | Wife | — | Massachusetts |
| 48 | Lawrence Quavillon | 19 | Son | Laborer | Massachusetts |
| 49 | Pauline Quavillon | 17 | Daughter | — | Vermont |
| 50 | Robert Quavillon | 8 | Son | — | Massachusetts |
| 51 | Charles Joyce | 70 | Head | — | Vermont |
| 52 | Agnes Joyce | 56 | Wife | — | Ireland |
| 53 | Charles Joyce | 31 | Son | Clerk | Massachusetts |
| 54 | Mary Joyce THIS PERSON | 27 | Daughter | Checker | Massachusetts |
| 55 | Thomas Joyce | 23 | Son | Laborer | Massachusetts |
| 56 | Veronica Mueller | 82 | Head | — | New York |
| 57 | Edward H. Mueller | 50 | Son | Salesman | New York |
| 58 | Clara Connolley | 49 | Head | Ironer | Massachusetts |
| 59 | Lorraine Connolley | 12 | Daughter | — | Massachusetts |
| 60 | John Truckinski | 40 | Head | — | Russia |
| 61 | Anna Truckinski | 53 | Wife | — | Massachusetts |
| 62 | Peter Grady | 64 | Head | Fireman | Scotland |
| 63 | Joseph Grady | 62 | Brother | Estimator | Scotland |
| 64 | John L. Tully | 55 | Head | Superintendent | Massachusetts |
| 65 | Anna Tully | 52 | Wife | — | Massachusetts |
| 66 | Rosemary Tully | 24 | Daughter | — | Massachusetts |
| 67 | Rose E. Tully | 63 | Head | — | Massachusetts |
| 68 | Maurice Brodsky | 35 | Head | Proprietor | Russia |
| 69 | Edna Brodsky | 27 | Wife | — | Massachusetts |
| 70 | B. Frank Kelley | 40 | Head | Timekeeper | Massachusetts |
| 71 | Mildred Kelley | 40 | Wife | — | Massachusetts |
| 72 | Margaret A. Kelley | 5 | Daughter | — | Massachusetts |
| 73 | Francis B. Kelley | 3 | Son | — | Massachusetts |
| 74 | Noreen Kelley | 1 | Daughter | — | Massachusetts |
| 75 | Kathleen Kelley | 1 | Daughter | — | Massachusetts |
| 76 | Vinnie Demuth | 67 | Head | — | Maine |
| 77 | Mary Slattery | 63 | Head | Clerk | Massachusetts |
| 78 | George H. Searles | 54 | Head | Office Clerk | Vermont |
| 79 | Gertrude Searles | 52 | Wife | — | Massachusetts |
| 80 | Helen Searles | 21 | Daughter | Housework | Massachusetts |
Pedigree Summary
Mary + 2 siblings
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)