WS
William Shaffer — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this William Shaffer across the 1930 and 1940 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1924), then head of a 10-person household.
Age 6
b. ~1924
Male
Son
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Allegheny, Pennsylvania |
| Surname | Shaffer |
| Given Name | William L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Switzerland |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Patton Township 1St Dist |
| Est. Birth Year | ~1924 |
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.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Joseph Shaffer | Son | — | 4 | ~1926 |
| Lula Shaffer | Spouse | — | 40 | ~1890 |
| Jacob Shaffer | Son | — | 18 | ~1912 |
| George Shaffer | Son | — | 15 | ~1915 |
| Edith Shaffer | Daughter | — | 11 | ~1919 |
| Helen Shaffer | Daughter | — | 8 | ~1922 |
| James Shaffer | Son | — | 1 | ~1929 |
| Charles Shaffer | Son | — | 13 | ~1917 |
| William Shaffer | Son | — | 6 | ~1924 |
| Jacob Shaffer | Head | — | 38 | ~1892 |
Census Appearances
1930
Allegheny, Pennsylvania
Son, age 6
Allegheny, Pennsylvania · implied b. ~1924 — 10 household members
| Surname | Shaffer |
| Given Name | William L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Switzerland |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Allegheny-County, Pennsylvania
Son, age 17
Allegheny-County, Pennsylvania · implied b. ~1923 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Schaefer |
| Given Name | William L. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Mt. Lebanon |
| 1935 Residence (County) | Allegheny |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| 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 Shaffer across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Shaffer
Son · 1930 · age 6 · b. ~1924 · Pennsylvania
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Sibling
Jacob Shaffer
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Shaffer
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Shaffer
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Shaffer
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Shaffer
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edith Shaffer
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Shaffer
Sibling · 1930 · age 15
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
1930 US Federal Census — Allegheny, Pennsylvania
Open full size
1930 US Federal Census — Allegheny, Pennsylvania
Page Contents
45 people indexed on this census page (ia:1930:fifteenthcensus00reel1969:0016)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Dominick Pualagnis | 20 | Son | Laborer | Italy |
| 52 | Rose Pualagnis | 16 | Daughter | — | Italy |
| 53 | Edith Pualagnis | 14 | Daughter | — | Italy |
| 54 | John Pualagnis | 12 | Son | — | Italy |
| 55 | Franky Pualagnis | 10 | Son | — | Italy |
| 56 | Joseph Pualagnis | 5 | Son | — | Pennsylvania |
| 57 | John Tamarella | 67 | Head | Proprietor | Italy |
| 58 | Elizabeth Tamarella | 62 | Wife | — | Italy |
| 59 | Robert F. Tamarella | 22 | Son | — | Pennsylvania |
| 60 | Adam J. Tamarella | 21 | Son | — | Pennsylvania |
| 61 | John B. Friorito | 33 | Head | Production Clerk | Pennsylvania |
| 62 | Tressa Friorito | 31 | Wife | Laborer | Pennsylvania |
| 63 | Norman Friorito | 9 | Son | — | Pennsylvania |
| 64 | Joseph Pivirotto | 25 | Cousin | — | Pennsylvania |
| 65 | Harry Foland | 59 | Head | Laborer | Illinois |
| 66 | Anna E. Foland | 45 | Wife | Laborer | Illinois |
| 67 | Christiana Foland | 15 | Daughter | — | Missouri |
| 68 | Lucille Ferguson | 3 | Gr. Daughter | — | Pennsylvania |
| 69 | Samuel Agiley | 65 | Cousin | — | Illinois |
| 70 | Jacob J. Shaffer | 38 | Head | Gardner | Switzerland |
| 71 | Lula S. Shaffer | 40 | Wife | Conductor | Pennsylvania |
| 72 | Jacob J. Shaffer | 18 | Son | — | Pennsylvania |
| 73 | George T. Shaffer | 15 | Son | Chain Man | Pennsylvania |
| 74 | Charles R. Shaffer | 13 | Son | — | Pennsylvania |
| 75 | Edith E. Shaffer | 11 | Daughter | — | Pennsylvania |
| 76 | Helen D. Shaffer | 8 | Daughter | — | Pennsylvania |
| 77 | William L. Shaffer THIS PERSON | 6 | Son | — | Pennsylvania |
| 78 | Joseph E. Shaffer | 4 | Son | — | Pennsylvania |
| 79 | James M. Shaffer | 1 | Son | — | Pennsylvania |
| 80 | Ida Monfreda | 49 | Head | — | Italy |
| 81 | Lewis A. Monfreda | 22 | Son | Laborer | Pennsylvania |
| 82 | Josephine Monfreda | 19 | Daughter | Filling Clerk | Pennsylvania |
| 83 | Leona Monfreda | 17 | Daughter | — | Pennsylvania |
| 84 | Frances Monfreda | 15 | Daughter | — | Pennsylvania |
| 85 | Lucy Monfreda | 12 | Daughter | — | Pennsylvania |
| 86 | Nellie Monfreda | 10 | Daughter | — | Pennsylvania |
| 87 | Genevieve Monfreda | 8 | Daughter | — | Pennsylvania |
| 88 | Eugene Guibo | 25 | Head | Laborer | Italy |
| 89 | Florence Guibo | 20 | Wife | — | Pennsylvania |
| 90 | John Guibo | 3 | Son | — | Pennsylvania |
| 91 | Mary Guibo | 2 | Daughter | — | Pennsylvania |
| 92 | Virginia Guibo | 1 | Daughter | — | Pennsylvania |
| 93 | John Puskarsh | 4 | Son | — | Pennsylvania |
| 94 | Clarence Puskarsh | 1 | Son | — | Pennsylvania |
| 95 | Andy Larnce | 58 | Lodger | Laborer | Austria |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)