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John Slater — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this John Slater across the 1910 and 1920 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1907), then head of a 9-person household.
Age 13
b. ~1907
Male
Son
Born: Pennsylvania
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Allegheny, Pennsylvania |
| Surname | Slater |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Knoxville Borough |
| Est. Birth Year | ~1907 |
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.
9 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Slater | Son | — | 13 | ~1907 |
| Johanna Slater | Spouse | — | 43 | ~1877 |
| Arthur Slater | Son | — | 11 | ~1909 |
| Dorothy Slater | Daughter | — | 17 | ~1903 |
| Charles Slater | Son | — | 10 | ~1910 |
| John Slater | Head | — | 46 | ~1874 |
| Mary Thiersch | Other | — | 21 | ~1899 |
| Mary Vallowe | Other | — | 26 | ~1894 |
| Herbert Slater | Son | — | 16 | ~1904 |
Census Appearances
1910
Allegheny, Pennsylvania
Son, age 3
Allegheny, Pennsylvania · implied b. ~1907 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Slater |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Allegheny, Pennsylvania
Son, age 13
Allegheny, Pennsylvania · implied b. ~1907 — 9 household members
| Surname | Slater |
| Given Name | John Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| 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 Slater across 2 US Census years (1910 and 1920) in Allegheny, Pennsylvania, using XGBoost record linkage.
Show:
This person
Anchor record
John Slater
Son · 1920 · age 13 · b. ~1907 · Pennsylvania
★ You are viewing this record
Sibling
Arthur Slater
Sibling · 1920 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Slater
Sibling · 1920 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Slater
Sibling · 1920 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Herbert Slater
Sibling · 1920 · age 16
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
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:1920:14thcensusofpopu1513unit:0262)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Adam Appel | 55 | Head | Merchant | Pennsylvania |
| 2 | Annie Appel | 52 | Wife | — | England |
| 3 | Ira Appel | 20 | Son | — | Pennsylvania |
| 4 | John Hurley | 50 | Head | — | Pennsylvania |
| 5 | Albert Hurley | 26 | Son | Book-Keeper | Pennsylvania |
| 6 | John Hurley | 23 | Son | Bill Clerk | Pennsylvania |
| 7 | Bessie Hurley | 21 | Daughter | — | Pennsylvania |
| 8 | Mary Hurley | 19 | Daughter | — | Pennsylvania |
| 9 | Hazel Hurley | 16 | Daughter | — | Pennsylvania |
| 10 | John H. Slater | 46 | Head | Funeral Director | Pennsylvania |
| 11 | Johanna Slater | 43 | Wife | — | Pennsylvania |
| 12 | Dorothy Slater | 17 | Daughter | — | Pennsylvania |
| 13 | Herbert Jr. Slater | 16 | Son | — | Pennsylvania |
| 14 | John Jr. Slater THIS PERSON | 13 | Son | — | Pennsylvania |
| 15 | Arthur Slater | 11 | Son | — | Pennsylvania |
| 16 | Charles F. Slater | 10 | Son | — | Pennsylvania |
| 17 | Mary E. Vallowe | 26 | Niece | — | Pennsylvania |
| 18 | Mary Thiersch | 21 | Servant | Servant | Pennsylvania |
| 19 | William E. H. Brandt | 46 | Head | Steward | Pennsylvania |
| 20 | Elmira Brandt | 45 | Wife | — | Pennsylvania |
| 21 | Alfred H. Brandt | 20 | Son | Organ Builder | Pennsylvania |
| 22 | Carl F. Brandt | 18 | Son | Tabulator | Pennsylvania |
| 23 | Ray Charles Brandt | 15 | Son | Check Boy | Pennsylvania |
| 24 | Lois E. Brandt | 14 | Daughter | — | Pennsylvania |
| 25 | E. E. Jarrett | 54 | Head | Engineer | West Virginia |
| 26 | Mary E. Jarrett | 52 | Wife | — | Pennsylvania |
| 27 | Paul E. Jarrett | 19 | Son | Postal Clerk | Pennsylvania |
| 28 | Paul V. Obiecunas | 60 | Head | Real Estate | Lithuania |
| 29 | Josephine Obiecunas | 49 | Wife | — | Germany |
| 30 | John Levendoske | 74 | Head | — | No Ho Poland |
| 31 | Amelia Levendoske | 74 | Wife | — | No Ho Poland |
| 32 | Joseph G. Beck | 50 | Head | Traffic Man | Pennsylvania |
| 33 | Wilhelmina Beck | 80 | Mother | — | Germany |
| 34 | Florence Mccoy | 40 | Head | Nurse | Ohio |
| 35 | Hazel Mccoy | 16 | Daughter | Stenography | Pennsylvania |
| 36 | Albert J. Sauer | 43 | Head | Attorney | Pennsylvania |
| 37 | Bertha Sauer | 40 | Wife | — | Pennsylvania |
| 38 | John E. Sauer | 11 | Son | — | Pennsylvania |
| 39 | Kathryn A. Sauer | 7 | Son | — | Pennsylvania |
| 40 | Esther Hoegeler | 19 | Niece | Telephone Oper | Pennsylvania |
| 41 | Gottlieb Lock | 56 | Head | Tailor | Germany |
| 42 | Marie Lock | 57 | Wife | — | Germany |
| 43 | Frieda Lock | 32 | Daughter | — | Pennsylvania |
| 44 | William Lock | 30 | Son | Tailor | Pennsylvania |
| 45 | Arthur Lock | 28 | Son | Contractor | Pennsylvania |
| 46 | Edgar Lock | 26 | Son | Salesman | Pennsylvania |
| 47 | Frank Lock | 24 | Son | Salesman | Pennsylvania |
| 48 | Edward A. Fodder | 55 | Head | Commercial Trav | New Jersey |
| 49 | Mildred G. Fodder | 44 | Wife | — | Pennsylvania |
| 50 | Ralph Williams | 27 | Head | Candy Maker | Pennsylvania |
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)