JW
John Welsh — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this John Welsh across the 1930 and 1940 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1885), then head of a 4-person household.
Age 45
b. ~1885
Male
Head
Born: Irish Free State
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Allegheny, Pennsylvania |
| Surname | Welsh |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| Naturalization Status | Naturalized |
| Year of Immigration | 1904 |
| Age at First Marriage | 35 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Additional Details | |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 7000 |
| Radio Set | R |
| Birthplace (normalized) | irish free state |
| Township / Ward | Pittsburgh City |
| Est. Birth Year | ~1885 |
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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| James Welsh | Son | — | 20 | ~1910 |
| Andrew Welsh | Son | — | 20 | ~1910 |
| Nora Welsh | Other | — | 38 | ~1892 |
| John Welsh | Head | — | 45 | ~1885 |
Census Appearances
1930
Allegheny, Pennsylvania
Head, age 45
Allegheny, Pennsylvania · implied b. ~1885 — 4 household members
| Surname | Welsh |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| Naturalization Status | Naturalized |
| Year of Immigration | 1904 |
| Age at First Marriage | 35 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Value / Rent | 7000 |
| Radio Set | R |
| Birthplace (normalized) | irish free state |
1940
Allegheny-County, Pennsylvania
Head, age 54
Allegheny-County, Pennsylvania · implied b. ~1886 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Walsh |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Irish Free State |
| 1935 Residence (City) | Pittsburgh |
| 1935 Residence (County) | Allegheny |
| Naturalization Status | Naturalized |
| Occupation | Janitor |
| Industry | City County Bldg |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 1300 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birthplace (normalized) | irish free state |
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 Welsh across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Welsh
Head · 1930 · age 45 · b. ~1885 · Pennsylvania
★ You are viewing this record
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
50 people indexed on this census page (ia:1930:fifteenthcensus00reel1974:0543)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Christina Hagerman | 58 | Head | — | Pennsylvania |
| 2 | Victor Hagerman | 30 | Son | Machinist | Pennsylvania |
| 3 | Almond Hagerman | 25 | Son | Truck Driver | Pennsylvania |
| 4 | Clara Hagerman | 18 | Daughter | — | Pennsylvania |
| 5 | Peter Stoker | 45 | Head | Retail Merchant | Yugoslavia |
| 6 | Lizzie Stoker | 33 | Wife-H | — | Yugoslavia |
| 7 | Anna Stoker | 26 | Daughter | — | Pennsylvania |
| 8 | Carolina Stoker | 23 | Daughter | Saleslady | Pennsylvania |
| 9 | John Welsh THIS PERSON | 45 | Head | — | Irish Free State |
| 10 | Nora Welsh | 38 | Wife-H | — | Irish Free State |
| 11 | James Welsh | 20 | Son | Laborer | Pennsylvania |
| 12 | Andrew M Welsh | 20 | Son | Riveter Maker | Pennsylvania |
| 13 | John Yost | 27 | Head | Truck Driver | Pennsylvania |
| 14 | Emma Yost | 21 | Wife-H | — | Pennsylvania |
| 15 | John Jr Yost | 1 | Son | — | Pennsylvania |
| 16 | John A Lovelidge | 44 | Head | Electrician | Pennsylvania |
| 17 | Bertha M Lovelidge | 44 | Wife-H | — | Pennsylvania |
| 18 | John Ruda | 53 | Head | Laborer | Poland |
| 19 | Mary Ruda | 50 | Wife-H | — | Poland |
| 20 | Anna Ruda | 21 | Daughter | Telephone Operator | Pennsylvania |
| 21 | John Ruda | 19 | Son | Form Setter | Pennsylvania |
| 22 | Michael Ruda | 17 | Son | — | Pennsylvania |
| 23 | Joseph Ruda | 15 | Son | — | Pennsylvania |
| 24 | Helen Ruda | 13 | Daughter | — | Pennsylvania |
| 25 | Joseph Lukowski | 27 | Head | Filler | Pennsylvania |
| 26 | Julia Lukowski | 23 | Wife-H | — | Pennsylvania |
| 27 | Joseph Laker | 62 | Head | Machinist | Yugoslavia |
| 28 | Mary M Laker | 62 | Wife-H | — | Yugoslavia |
| 29 | Justina L Laker | 28 | Daughter | Saleslady | Pennsylvania |
| 30 | Frances A Laker | 21 | Daughter | Stenographer | Pennsylvania |
| 31 | John Zivic | 44 | Head | Moulder Helper | Yugoslavia |
| 32 | John Jr Zivic | 19 | Son | Inspector | Pennsylvania |
| 33 | Anna J Zivic | 16 | Daughter | — | Pennsylvania |
| 34 | Katherine T Zivic | 14 | Daughter | — | Pennsylvania |
| 35 | Steven Zivic | 10 | Son | — | Pennsylvania |
| 36 | Nicolas Simunkovic | 36 | Boarder | Shipper | Yugoslavia |
| 37 | Anna Glotic | 38 | Head | — | Yugoslavia |
| 38 | Mary Glotic | 16 | Daughter | — | Pennsylvania |
| 39 | Joseph Glotic | 14 | Son | — | Pennsylvania |
| 40 | Samuel Glotic | 13 | Son | — | Pennsylvania |
| 41 | John Glotic | 11 | Son | — | Pennsylvania |
| 42 | Samuel Semicick | 52 | Boarder | Keeper | Yugoslavia |
| 43 | Blair Gersick | 50 | Head | Repairman | Yugoslavia |
| 44 | Mary Gersick | 47 | Wife-H | — | Yugoslavia |
| 45 | Lillian Gersick | 20 | Daughter | Roller | Pennsylvania |
| 46 | Mildred Gersick | 11 | Daughter | — | Pennsylvania |
| 47 | Josephine Gersick | 9 | Daughter | — | Pennsylvania |
| 48 | Joseph Gersick | 5 | Son | — | Pennsylvania |
| 49 | Anna Skrinich | 46 | Head | — | Yugoslavia |
| 50 | Frances Skrinich | 20 | Daughter | Waitress | Pennsylvania |
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)