JI
James Irwin — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Westmoreland, Pennsylvania
Our Model Tree links this James Irwin across the 1930 and 1940 US Censuses in Westmoreland, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 4-person household.
Age 4
b. ~1926
Male
Son
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Westmoreland, Pennsylvania |
| Surname | Irwin |
| Given Name | James |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | none |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Parnassus Borough |
| Est. Birth Year | ~1926 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| James Irwin | Son | — | 4 | ~1926 |
| Delores Irwin | Daughter | — | 9 | ~1921 |
| Alice Irwin | Spouse | — | 28 | ~1902 |
| Isaiah Irwin | Head | — | 31 | ~1899 |
Census Appearances
1930
Westmoreland, Pennsylvania
Son, age 4
Westmoreland, Pennsylvania · implied b. ~1926 — 4 household members
| Surname | Irwin |
| Given Name | James |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Westmoreland-County, Pennsylvania
Son, age 15
Westmoreland-County, Pennsylvania · implied b. ~1925 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Irwin |
| Given Name | Jack |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Derry Borough |
| 1935 Residence (County) | Westmoreland |
| Class of Worker | 0 |
| Highest Grade | No 4 |
| 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 James Irwin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Irwin
Son · 1930 · age 4 · b. ~1926 · Pennsylvania
★ You are viewing this record
Sibling
Delores Irwin
Sibling · 1930 · age 9
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 — Westmoreland, Pennsylvania
Open full size
1930 US Federal Census — Westmoreland, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel2158:0344)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James Daugherty | 11 | nephew | None | Pennsylvania |
| 2 | John C Morgan | 70 | Head | None | England |
| 3 | Margaret B Morgan | 69 | Wife | None | Pennsylvania |
| 4 | John Simpson | 70 | Head | Manufacturer | Pennsylvania |
| 5 | Flora Simpson | 61 | Wife | None | Pennsylvania |
| 6 | Joseph Simpson | 17 | son | None | Pennsylvania |
| 7 | Alex Mcmillan | 73 | Head | None | Pennsylvania |
| 8 | Mary Ellen Mcmillan | 64 | Wife | None | Pennsylvania |
| 9 | Harry J Mcmillan | 32 | son | Laborer | Pennsylvania |
| 10 | George R Mcmillan | 19 | son | Asst. Undertaker | Pennsylvania |
| 11 | Charles Joswig | 26 | son-in-law | Machinist | Germany |
| 12 | Mary Ellen Joswig | 24 | daughter | Stenographer | Pennsylvania |
| 13 | Margaret Schuemaker | 24 | roomer | Laborer | Ohio |
| 14 | Edward Hammond | 35 | Head | Foreman | New York |
| 15 | Margaret Hammond | 26 | Wife | None | Pennsylvania |
| 16 | Annie Kirkland | 73 | Head | None | England |
| 17 | William Kirkland | 36 | U.S. Post Office | Mail Carrier | Pennsylvania |
| 18 | Margaret Morgan | 59 | sister | Saleslady | Pennsylvania |
| 19 | John Fatzler | 33 | Head | Chemist | Czechoslovakia |
| 20 | Anna Fatzler | 30 | Wife | None | Pennsylvania |
| 21 | William F Fatzler | 6 | son | None | Pennsylvania |
| 22 | James J Fatzler | 3 | son | None | Pennsylvania |
| 23 | Shirley J Fatzler | 1 | daughter | None | Pennsylvania |
| 24 | Andrew Mares | 26 | Head | Laborer | Pennsylvania |
| 25 | Marie Mares | 21 | Wife | None | Pennsylvania |
| 26 | Isaiah Irwin | 31 | Head | Barber | Pennsylvania |
| 27 | Alice Irwin | 28 | Wife | None | Pennsylvania |
| 28 | Delores Irwin | 9 | daughter | None | Pennsylvania |
| 29 | James Irwin THIS PERSON | 4 | son | None | Pennsylvania |
| 30 | Mary Morehead | 53 | Head | None | Pennsylvania |
| 31 | Raymond Dutgrill | 18 | roomer | Electrician | Pennsylvania |
| 32 | Tony Carabacchia | 35 | lodger | Tailor | Italy |
| 33 | Gladys R Carnahan | 49 | lodger | Saleswoman | Pennsylvania |
| 34 | Martin Doyle | 29 | Head | Miner | Pennsylvania |
| 35 | Edith Doyle | 26 | Wife | None | England |
| 36 | Agnes Doyle | 2 | daughter | None | Pennsylvania |
| 37 | John Doyle | 1 | son | None | Pennsylvania |
| 38 | John Russell | 55 | Baptist Church | Janitor | England |
| 39 | Elizabeth Russell | 52 | Wife | None | England |
| 40 | William Russell | 23 | son | Policeman | Pennsylvania |
| 41 | Millie Whitesell | 34 | daughter | Factory Worker | England |
| 42 | Charles Whitesell | 8 | grandson | None | Pennsylvania |
| 43 | Samuel Thomas | 31 | Head | Mechanic | Pennsylvania |
| 44 | Retta Thomas | 32 | Wife | None | Pennsylvania |
| 45 | Ruth Thomas | 9 | daughter | None | Pennsylvania |
| 46 | Betty Thomas | 7 | daughter | None | Pennsylvania |
| 47 | Clyde Shaw | 41 | Head | Transferman | Pennsylvania |
| 48 | Ethel Shaw | 30 | Wife | Clerk | Indiana |
| 49 | Blaine Collier | 44 | brother-in-law | Truck Driver | Indiana |
| 50 | Robert Jackson | 36 | Head | Sales Representative | 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)