JI
James Irwin — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this James Irwin across the 1910 and 1920 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed) — first a head (b.~1871), then head of a 7-person household.
Age 49
b. ~1871
Male
Head
Born: Pennsylvania
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Allegheny, Pennsylvania |
| Surname | Irwin |
| Given Name | James T |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Carpenter |
| Industry | House work |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Year of Naturalization | R |
| Birthplace (normalized) | pennsylvania |
| Occupation | Carpenter |
| Township / Ward | Mifflin Township Precinct 2 |
| Est. Birth Year | ~1871 |
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.
7 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Randol Irwin | Son | — | 13 | ~1907 |
| Evelyn Irwin | Daughter | — | 17 | ~1903 |
| Alice Irwin | Spouse | — | 51 | ~1869 |
| James Irwin | Head | — | 49 | ~1871 |
| Hamilton Irwin | Son | — | 16 | ~1904 |
| Harriet Irwin | Daughter | — | 22 | ~1898 |
| Thomas Irwin | Son | — | 10 | ~1910 |
Census Appearances
1910
Allegheny, Pennsylvania
Head, age 38
Allegheny, Pennsylvania · implied b. ~1872 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Irwin |
| Given Name | James P |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Years Married | 15 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Carpenter |
| Industry | Lumber Company |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Allegheny, Pennsylvania
Head, age 49
Allegheny, Pennsylvania · implied b. ~1871 — 7 household members
| Surname | Irwin |
| Given Name | James T |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Carpenter |
| Industry | House work |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Year of Naturalization | R |
| 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 (1910 and 1920) in Allegheny, Pennsylvania, using XGBoost record linkage.
Show:
This person
Anchor record
James Irwin
Head · 1920 · age 49 · b. ~1871 · Pennsylvania
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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:1920:14thcensusofpopu1514unit:0387)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles Challner | 48 | Head | Brick Layer | Pennsylvania |
| 2 | Ada Challner | 46 | Wife | — | Pennsylvania |
| 3 | John E Challner | 18 | Son | Laborer | Pennsylvania |
| 4 | Mary E Challner | 17 | Daughter | — | Pennsylvania |
| 5 | James M Challner | 15 | Son | — | Pennsylvania |
| 6 | Alice T Challner | 12 | Daughter | — | Pennsylvania |
| 7 | Walter L Challner | 10 | Son | — | Pennsylvania |
| 8 | Eva L Challner | 9 | Daughter | — | Pennsylvania |
| 9 | Dorothy Challner | 6 | Daughter | — | Pennsylvania |
| 10 | Edward W Stroud | 62 | Head | Team Operator | Pennsylvania |
| 11 | Sarah E Stroud | 61 | Wife | — | Pennsylvania |
| 12 | Joseph Laucister | 41 | Head | Team Operator | Pennsylvania |
| 13 | Michael Laucister | 44 | Brother | Miner | Pennsylvania |
| 14 | Mary Laucister | 38 | Sister | — | Pennsylvania |
| 15 | Margaret Laucister | 37 | Sister | — | Pennsylvania |
| 16 | Sophia Laucister | 35 | Sister | — | Pennsylvania |
| 17 | John B Laucister | 29 | Brother | Miner | Pennsylvania |
| 18 | Peter J Laucister | 26 | Brother | Laborer | Pennsylvania |
| 19 | Henry Echard | 47 | Head | Farm Laborer | Germany |
| 20 | Eva Echard | 40 | Wife | — | Pennsylvania |
| 21 | Margaret Echard | 19 | Daughter | — | Pennsylvania |
| 22 | William Echard | 17 | Son | Farm Laborer | Pennsylvania |
| 23 | Walter Echard | 15 | Son | — | Pennsylvania |
| 24 | Charles Echard | 11 | Son | — | Pennsylvania |
| 25 | Harriet Echard | 8 | Daughter | — | Pennsylvania |
| 26 | Robert Echard | 5 | Son | — | Pennsylvania |
| 27 | Elmer Echard | 3 | Son | — | Pennsylvania |
| 28 | Milos Mudron | 54 | Head | Team Operator | Hungary |
| 29 | Rosa Mudron | 54 | Wife | — | Hungary |
| 30 | Arthur Mudron | 17 | Son | Farm Laborer | Pennsylvania |
| 31 | Hermina R Mudron | 16 | Daughter | — | Pennsylvania |
| 32 | James T Irwin THIS PERSON | 49 | Head | Carpenter | Pennsylvania |
| 33 | Alice Irwin | 51 | Wife | — | Pennsylvania |
| 34 | Harriet S Irwin | 22 | Daughter | — | Pennsylvania |
| 35 | Evelyn M Irwin | 17 | Daughter | — | Pennsylvania |
| 36 | Hamilton Irwin | 16 | Son | Laborer | Pennsylvania |
| 37 | Randol Irwin | 13 | Son | — | Pennsylvania |
| 38 | Thomas Irwin | 10 | Son | — | Pennsylvania |
| 39 | Andrew Walters | 34 | Head | Farm Operator | Pennsylvania |
| 40 | Rachel K Walters | 27 | Wife | — | Pennsylvania |
| 41 | Mildred E Walters | 1 | Daughter | — | Pennsylvania |
| 42 | Alice C Walters | 0 | Daughter | — | Pennsylvania |
| 43 | Harry Stoynets | 43 | Boarder | Farm Laborer | Pennsylvania |
| 44 | Hugh Mc Gown | 56 | Head | Farm Operator | Pennsylvania |
| 45 | Jennie Mc Gown | 52 | Wife | — | Pennsylvania |
| 46 | Sadie Mc Gown | 27 | Daughter | — | Pennsylvania |
| 47 | Peter B Mc Gown | 15 | Son | — | Pennsylvania |
| 48 | John L Ross | 58 | Head | Farm Operator | Pennsylvania |
| 49 | Jennie A Ross | 60 | Wife | — | Pennsylvania |
| 50 | Robert Heckman | 14 | Boarder | — | 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)