MJ
Mary Joyce — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this Mary Joyce across the 1920, 1930 and 1940 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1862), then head of a 5-person household.
Age 58
b. ~1862
Female
Head
Born: Ireland
Widowed
1920 Census Record Details
| Census Year | 1920 |
| Location | Allegheny, Pennsylvania |
| Surname | Joyce |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Pittsburgh |
| Est. Birth Year | ~1862 |
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 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| John Joyce | Son | — | 22 | ~1898 |
| Thomas Joyce | Son | — | 27 | ~1893 |
| Ada Joyce | Daughter | — | 29 | ~1891 |
| Mary Joyce | Head | — | 58 | ~1862 |
| Annie Joyce | Other | — | 27 | ~1893 |
Census Appearances
1920
Allegheny, Pennsylvania
Head, age 58
Allegheny, Pennsylvania · implied b. ~1862 — 5 household members
| Surname | Joyce |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
Allegheny, Pennsylvania
Other, age 69
Allegheny, Pennsylvania · implied b. ~1861 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Joyce |
| Given Name | Mary |
| Relationship to Head | Mother in law |
| Sex | F |
| Color / Race | White |
| Age | 69 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1865 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Mother Tongue | Irish Eng |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Allegheny-County, Pennsylvania
Other, age 75
Allegheny-County, Pennsylvania · implied b. ~1865 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Joyce |
| Given Name | Mary |
| Relationship to Head | Lodger |
| Sex | F |
| Color / Race | White |
| Age | 75 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| 1935 Residence (City) | PITTSBURGH |
| 1935 Residence (County) | ALLEGHENY |
| Naturalization Status | Naturalized |
| Highest Grade | No 3 |
| 1935 Residence | Same place |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
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.
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This person
Anchor record
Mary Joyce
Head · 1920 · age 58 · b. ~1862 · Pennsylvania
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Allegheny, Pennsylvania
Open full size
1920 US Federal Census — Allegheny, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1519unit:0369)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Rose Butera | 9 | Daughter | — | Pennsylvania |
| 52 | Louis Butera | 7 | Son | — | Pennsylvania |
| 53 | Marion Butera | 5 | Daughter | — | Pennsylvania |
| 54 | Greco Charles Butera | 21 | Brother-in-law | School | Italy |
| 55 | Patrick Donnelly | 66 | Head | Janitor | Ireland |
| 56 | Edward Donnelly | 35 | Son | Printer | New Jersey |
| 57 | Frank Donnelly | 33 | Son | News Dealer | Pennsylvania |
| 58 | Walter Donnelly | 30 | Son | Janitor | Pennsylvania |
| 59 | Catherine Donnelly | 21 | Daughter | None | Pennsylvania |
| 60 | Annie Shapiro | 48 | Head | None | Russia |
| 61 | Samuel Shapiro | 23 | Son | News Agent | Russia |
| 62 | Max Shapiro | 21 | Son | Clerk | Russia |
| 63 | Sarah Shapiro | 17 | Daughter | School | Pennsylvania |
| 64 | Alice Shapiro | 15 | Daughter | School | Pennsylvania |
| 65 | Samuel Feld | 37 | Head | Mattress Mfg. | Russia |
| 66 | Bessie Feld | 37 | Wife | None | Russia |
| 67 | Lillian Feld | 12 | Daughter | School | Pennsylvania |
| 68 | Mollie Feld | 11 | Daughter | School | Pennsylvania |
| 69 | Rosie Feld | 9 | Daughter | School | Pennsylvania |
| 70 | Joseph Feld | 4 | Son | — | Pennsylvania |
| 71 | Herbert Haase | 45 | Head | None | New York |
| 72 | Herbert Haase | 24 | Son | Salesman | Pennsylvania |
| 73 | Fred Haase | 19 | Son | Chauffeur | Pennsylvania |
| 74 | Mary Joyce THIS PERSON | 58 | Head | None | Ireland |
| 75 | Thomas P. Joyce | 27 | Son | Laborer | Pennsylvania |
| 76 | Annie Joyce | 27 | Daughter-in-law | None | Pennsylvania |
| 77 | John Joyce | 22 | Son | Laborer | Pennsylvania |
| 78 | Ada Joyce | 29 | Daughter | Cleaner | Pennsylvania |
| 79 | Isaac Lipsky | 37 | Head | Huckster | Russia |
| 80 | Esther Lipsky | 36 | Wife | None | Russia |
| 81 | Rose Lipsky | 16 | Daughter | School | Russia |
| 82 | Max Lipsky | 11 | Son | School | Pennsylvania |
| 83 | Gertrude Lipsky | 9 | Daughter | School | Pennsylvania |
| 84 | Benny Bailowsky | 29 | Head | Mattress Maker | Russia |
| 85 | Fannie Bailowsky | 30 | Wife | None | Russia |
| 86 | Nathan Hecht | 34 | Boarder | Carpenter | Russia |
| 87 | Harry Cooper | 40 | Head | Electrician | Pennsylvania |
| 88 | Nellie Cooper | 39 | Wife | None | Germany |
| 89 | Estella Cooper | 16 | Daughter | None | Pennsylvania |
| 90 | Alfred Cooper | 12 | Son | School | Pennsylvania |
| 91 | Edward Cooper | 6 | Son | School | Pennsylvania |
| 92 | Mary Cooper | 3 | Daughter | None | Pennsylvania |
| 93 | Robert Cooper | 2 | Son | None | Pennsylvania |
| 94 | Bernice Cooper | 1 | Daughter | None | Pennsylvania |
| 95 | William Brink | 35 | Head | Policeman | Tennessee |
| 96 | Annie Brink | 28 | Wife | None | North Carolina |
| 97 | Mayme Brink | 11 | Daughter | School | North Carolina |
| 98 | Genevieve Brink | 7 | Daughter | School | Arkansas |
| 99 | Charles Miller | 48 | Head | Janitor | Georgia |
| 100 | Georgiana Miller | 31 | Wife | None | North Carolina |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)