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William Sweeney — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Philadelphia-County, Pennsylvania
Our Model Tree links this William Sweeney across the 1930 and 1940 US Censuses in Philadelphia-County, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1905), then head of a 13-person household.
Age 35
b. ~1905
Male
Son
Born: Pennsylvania
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Philadelphia-County, Pennsylvania |
| Surname | Sweeney |
| Given Name | William |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Additional Details | |
| Occupation | knitter |
| Industry | hosiery mill |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 910 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Knitter |
| Township / Ward | Philadelphia |
| Est. Birth Year | ~1905 |
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.
13 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Catherine Mcdevitt | Daughter | — | 17 | ~1923 |
| Florence Sweeney | Daughter | — | 30 | ~1910 |
| Rose Mcdevitt | Daughter | — | 19 | ~1921 |
| Michael Mcdevitt | Head | — | 58 | ~1882 |
| William Sweeney | Other | — | 1 | ~1939 |
| Florence Sweeney | Other | — | 2 | ~1938 |
| Frederick Mcdevitt | Son | — | 15 | ~1925 |
| James Mcdevitt | Son | — | 31 | ~1909 |
| John Mcdevitt | Son | — | 23 | ~1917 |
| Michael Mcdevitt | Son | — | 25 | ~1915 |
| Edward Mcdevitt | Son | — | 13 | ~1927 |
| William Sweeney | Son | — | 35 | ~1905 |
| Frances Mcdevitt | Son | — | 21 | ~1919 |
Census Appearances
1930
Philadelphia, Pennsylvania
Son, age 25
Philadelphia, Pennsylvania · implied b. ~1905 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sweeney |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Knitter |
| Industry | Hosiery Mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Philadelphia-County, Pennsylvania
Son, age 35
Philadelphia-County, Pennsylvania · implied b. ~1905 — 13 household members
| Surname | Sweeney |
| Given Name | William |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Philadelphia |
| 1935 Residence (County) | Philadelphia |
| Occupation | knitter |
| Industry | hosiery mill |
| Class of Worker | PW |
| Hours Worked | 24 |
| Income (1939) | 910 |
| 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 William Sweeney across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Sweeney
Son · 1940 · age 35 · b. ~1905 · Pennsylvania
★ You are viewing this record
Sibling
Frederick Mcdevitt
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Michael Mcdevitt
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Mcdevitt
Sibling · 1940 · age 31
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Mcdevitt
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Mcdevitt
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Mcdevitt
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Florence Sweeney
Sibling · 1940 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frances Mcdevitt
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rose Mcdevitt
Sibling · 1940 · age 19
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 — Philadelphia-County, Pennsylvania
Open full size
1940 US Federal Census — Philadelphia-County, Pennsylvania
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03709-00709)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Jessie Byaszkowski | 45 | wife | — | Pennsylvania |
| 42 | John Byaszkowski | 21 | son | Assembler | Pennsylvania |
| 43 | Regina Byaszkowski | 19 | daughter | — | Pennsylvania |
| 44 | Andrew Byaszkowski | 16 | son | — | Pennsylvania |
| 45 | Rita Byaszkowski | 14 | daughter | — | Pennsylvania |
| 46 | Teresa Byaszkowski | 11 | daughter | — | Pennsylvania |
| 47 | Joseph Byaszkowski | 7 | son | — | Pennsylvania |
| 48 | Michael A Mcdevitt | 58 | head | Shipper | Pennsylvania |
| 49 | James Mcdevitt | 31 | son | Knitter | Pennsylvania |
| 50 | Michael Mcdevitt | 25 | son | — | Pennsylvania |
| 51 | John Mcdevitt | 23 | son | — | Pennsylvania |
| 52 | Frances Mcdevitt | 21 | son | Seaman | Pennsylvania |
| 53 | Frederick Mcdevitt | 15 | son | — | Pennsylvania |
| 54 | Edward Mcdevitt | 13 | son | — | Pennsylvania |
| 55 | Rose Mcdevitt | 19 | daughter | Twister | Pennsylvania |
| 56 | Catherine Mcdevitt | 17 | daughter | — | Pennsylvania |
| 57 | William Sweeney THIS PERSON | 35 | son | Knitter | Pennsylvania |
| 58 | Florence Sweeney | 30 | daughter | — | Pennsylvania |
| 59 | Florence Sweeney | 2 | granddaughter | — | Pennsylvania |
| 60 | William Sweeney | 1 | grandson | — | Pennsylvania |
| 61 | Vincent Piskorski | 50 | head | Carpenter | Poland |
| 62 | Stella Piskorski | 51 | wife | — | Poland |
| 63 | Helen Piskorski | 18 | daughter | New Worker | Pennsylvania |
| 64 | Edward Piskorski | 17 | son | New Worker | Pennsylvania |
| 65 | Stanley Piskorski | 15 | son | — | Pennsylvania |
| 66 | Joseph Piskorski | 11 | son | — | Pennsylvania |
| 67 | John Piskorski | 5 | son | — | Pennsylvania |
| 68 | Victor Alfonsi | 42 | head | Pasting | Italy |
| 69 | Alexandria Alfonsi | 40 | wife | — | Italy |
| 70 | Olga Alfonsi | 15 | daughter | — | Pennsylvania |
| 71 | Gilda Alfonsi | 12 | daughter | — | Pennsylvania |
| 72 | Mary Alfonsi | 18 | daughter | — | Pennsylvania |
| 73 | Dominick Macchia | 67 | head | Cleaner | Italy |
| 74 | Filomena Macchia | 27 | daughter | Solderer | Pennsylvania |
| 75 | Rose Macchia | 23 | daughter | Packer | Pennsylvania |
| 76 | Elaine Macchia | 22 | daughter | — | Pennsylvania |
| 77 | Victor Macchia | 19 | son | Barber | Pennsylvania |
| 78 | Casimer Soltyshewski | 51 | head | — | Poland |
| 79 | Casimer Soltyshewski | 29 | son | Shipper | Pennsylvania |
| 80 | Clement Soltyshewski | 23 | son | Conveyor Man | Pennsylvania |
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)