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John Joyce — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allegheny-County, Pennsylvania
Our Model Tree links this John Joyce across the 1920, 1930 and 1940 US Censuses in Allegheny-County, Pennsylvania (XGBoost, ~Confirmed), with identified parents Patrick & Thomas — first a head (b.~1906), then head of a 7-person household.
Age 34
b. ~1906
Male
Head
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Allegheny-County, Pennsylvania |
| Surname | Joyce |
| Given Name | John F. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Penn Township |
| 1935 Residence (County) | Allegheny |
| Additional Details | |
| Occupation | Gardner |
| Industry | Private Family |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 904 |
| Highest Grade | 8 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Gardner |
| Township / Ward | Penn Township |
| Est. Birth Year | ~1906 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Joyce | Son | — | 13 | ~1927 |
| John Joyce | Head | — | 34 | ~1906 |
| Margaret Joyce | Daughter | — | 11 | ~1929 |
| Kathleen Joyce | Daughter | — | 4 | ~1936 |
| Agnes Joyce | Daughter | — | 9 | ~1931 |
| Mary Joyce | Daughter | — | 14 | ~1926 |
| Beatrice Joyce | Spouse | — | 36 | ~1904 |
Census Appearances
1920
Allegheny, Pennsylvania
Son, age 13
Allegheny, Pennsylvania · implied b. ~1907 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Joyce |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Allegheny, Pennsylvania
Son, age 23
Allegheny, Pennsylvania · implied b. ~1907 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Joyce |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Accountant |
| Industry | Real Estate |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Head, age 34
Allegheny-County, Pennsylvania · implied b. ~1906 — 7 household members
| Surname | Joyce |
| Given Name | John F. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Penn Township |
| 1935 Residence (County) | Allegheny |
| Occupation | Gardner |
| Industry | Private Family |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 904 |
| Highest Grade | 8 |
| 1935 Residence | Same Place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
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 John Joyce across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Patrick Joyce (~0.92 confidence) and father Thomas Joyce (~0.92 confidence) and father William Joyce (~0.45 confidence) and mother Nellie Joyce (~0.45 confidence) and mother Kate Joyce (~0.92 confidence). The pedigree spans 2 generations with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.73
Father
Patrick Joyce
b. ~1875
Source father
● Household
· direct · ~0.92
Father
Thomas Joyce
b. ~1882
Source father
● Household
· direct · ~0.92
Father
William Joyce
b. ~1890
Source father>father
● Household
· direct · ~0.45
Mother
Nellie Joyce
b. ~1888
Source father>mother
● Household
· direct · ~0.45
Mother
Kate Joyce
b. ~1882
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Joyce
Head · 1940 · age 34 · b. ~1906 · Pennsylvania
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Allegheny-County, Pennsylvania
Open full size
1940 US Federal Census — Allegheny-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03414-00297)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Anna Hinkel | 54 | Wife | — | Ireland |
| 42 | Theresa Hinkel | 24 | Daughter | — | Pennsylvania |
| 43 | Anthony Hinkel | 23 | Son | Helper | Pennsylvania |
| 44 | Rose Hinkel | 21 | Daughter | — | Pennsylvania |
| 45 | Rita Hinkel | 16 | Daughter | — | Pennsylvania |
| 46 | Andrew Hinkel | 87 | Father | — | Germany |
| 47 | Anna L. Keable | 57 | Head | — | Germany |
| 48 | George Jos. Keable | 31 | Son | Stone Layer | Pennsylvania |
| 49 | Robert Dunnigan | 34 | Lodger | Laborer | Pennsylvania |
| 50 | Robert Jr. Dunnigan | 12 | Son | — | Pennsylvania |
| 51 | Paul Fenger | 61 | Head | Fitter | Pennsylvania |
| 52 | Herbert M. Mckee | 48 | Head | Driver | Pennsylvania |
| 53 | Jessie Mckee | 37 | Wife | Dressmaker | Pennsylvania |
| 54 | Emma Zorfass | 44 | Mother-in-law | — | Pennsylvania |
| 55 | John F. Joyce THIS PERSON | 34 | Head | Gardner | Pennsylvania |
| 56 | Beatrice Joyce | 36 | Wife | — | Ireland |
| 57 | Mary Joyce | 14 | Daughter | — | Pennsylvania |
| 58 | John Joyce | 13 | Son | — | Pennsylvania |
| 59 | Margaret Joyce | 11 | Daughter | — | Pennsylvania |
| 60 | Agnes Joyce | 9 | Daughter | — | Pennsylvania |
| 61 | Kathleen Joyce | 4 | Daughter | — | Pennsylvania |
| 62 | Francis Marnes | 32 | Head | Chief Clerk | Pennsylvania |
| 63 | Beatrice Marnes | 28 | Wife | — | Ohio |
| 64 | Marcella Vincent | 42 | Head | Pipefitter | West Virginia |
| 65 | Elizabeth Vincent | 39 | Daughter | Saleslady | Pennsylvania |
| 66 | Lee Sprague | 47 | Head | Carpenter | Pennsylvania |
| 67 | Edna Sprague | 43 | Wife | — | West Virginia |
| 68 | George Sprague | 20 | Son | Clerk | Pennsylvania |
| 69 | Gladys Sprague | 16 | Daughter | — | Pennsylvania |
| 70 | Edw. T. Acker | 62 | Head | Timekeeper | Pennsylvania |
| 71 | Rose T. Acker | 61 | Wife | — | Pennsylvania |
| 72 | Robert J. Acker | 31 | Son | Helper | Pennsylvania |
| 73 | Martha Elizabeth Acker | 22 | Daughter | — | Pennsylvania |
| 74 | James Henna | 40 | Head | Photographer | Pennsylvania |
| 75 | Annie Henna | 40 | Wife | — | Pennsylvania |
| 76 | James Henna | 8 | Son | — | Pennsylvania |
| 77 | John Henna | 4 | Son | — | Pennsylvania |
| 78 | Joanne Henna | 0 | Daughter | — | Pennsylvania |
| 79 | Albert Biegler | 40 | Head | Sheet Metal | Pennsylvania |
| 80 | Margaret Biegler | 38 | Wife | — | Pennsylvania |
Pedigree Summary
John
Gen 1 · 3 parents
~0.92
Gen 2 · 2 grandparents
~0.45
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)