JD
John Dugan — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Allegheny, Pennsylvania
Our Model Tree links this John Dugan across the 1910 and 1920 US Censuses in Allegheny, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1904), then head of a 8-person household.
Age 16
b. ~1904
Male
Son
Born: Pennsylvania
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Allegheny, Pennsylvania |
| Surname | Dugan |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Laborer |
| Industry | Electric Co |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Laborer |
| Township / Ward | East Pittsburgh Borough |
| Est. Birth Year | ~1904 |
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.
8 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Margaret Dugan | Daughter | — | 5 | ~1915 |
| Eleanor Dugan | Daughter | — | 1 | ~1919 |
| Henry Dugan | Son | — | 13 | ~1907 |
| Francis Dugan | Son | — | 18 | ~1902 |
| John Dugan | Head | — | 43 | ~1877 |
| Rita Dugan | Son | — | 10 | ~1910 |
| Margaret Dugan | Spouse | — | 40 | ~1880 |
| John Dugan | Son | — | 16 | ~1904 |
Census Appearances
1910
Allegheny, Pennsylvania
Son, age 5
Allegheny, Pennsylvania · implied b. ~1905 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dugan |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| 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 16
Allegheny, Pennsylvania · implied b. ~1904 — 8 household members
| Surname | Dugan |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Laborer |
| Industry | Electric Co |
| Class of Worker | W |
| 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 Dugan across 2 US Census years (1910 and 1920) in Allegheny, Pennsylvania, using XGBoost record linkage.
Show:
This person
Anchor record
John Dugan
Son · 1920 · age 16 · b. ~1904 · Pennsylvania
★ You are viewing this record
Sibling
Francis Dugan
Sibling · 1920 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Henry Dugan
Sibling · 1920 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rita Dugan
Sibling · 1920 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Dugan
Sibling · 1920 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eleanor Dugan
Sibling · 1920 · age 1
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
49 people indexed on this census page (ia:1920:14thcensusofpopu1511unit:0455)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Anna Keinen | 39 | Daughter | Controller | Pennsylvania |
| 52 | John Keinen | 37 | Son | Inspector | Pennsylvania |
| 53 | Luke Keinen | 35 | Son | Foreman | Pennsylvania |
| 54 | Francis Keinen | 25 | Son | Helper | Pennsylvania |
| 55 | James Keinen | 30 | Son | Foreman | Pennsylvania |
| 56 | Catherine Keinen | 21 | Daughter | Stenographer | Pennsylvania |
| 57 | Rose Keinen | 19 | Daughter | — | Pennsylvania |
| 58 | Thomas J Connolly | 56 | Head | Watchman | Ireland |
| 59 | Mary Connolly | 49 | Wife | — | Pennsylvania |
| 60 | Thomas M Connolly | 22 | Son | Machinist | Pennsylvania |
| 61 | James Connolly | 21 | Son | Machinist | Pennsylvania |
| 62 | Gertrude Connolly | 16 | Daughter | Clerk | Pennsylvania |
| 63 | Agnes Connolly | 13 | Daughter | — | Pennsylvania |
| 64 | John Dugan | 43 | Head | Machinist | Pennsylvania |
| 65 | Margaret Dugan | 40 | Wife | — | Pennsylvania |
| 66 | Francis Dugan | 18 | Son | Laborer | Pennsylvania |
| 67 | John Dugan THIS PERSON | 16 | Son | Laborer | Pennsylvania |
| 68 | Henry Dugan | 13 | Son | — | Pennsylvania |
| 69 | Rita Dugan | 10 | Son | — | Pennsylvania |
| 70 | Margaret Dugan | 5 | Daughter | — | Pennsylvania |
| 71 | Eleanor Dugan | 1 | Daughter | — | Pennsylvania |
| 72 | Peter Hermann | 40 | Head | Machinist | Pennsylvania |
| 73 | Charlotte Hermann | 17 | Son | Oiler | Pennsylvania |
| 74 | Alice L Hermann | 13 | Daughter | — | Pennsylvania |
| 75 | William B Hermann | 11 | Son | — | Pennsylvania |
| 76 | Mildred C Hermann | 8 | Daughter | — | Pennsylvania |
| 77 | William Fiedel | 28 | Brother | Machinist | Pennsylvania |
| 78 | Anna Keaney | 28 | Head | Operator | Pennsylvania |
| 79 | Francis Keaney | 11 | Son | — | Pennsylvania |
| 80 | Philip Keaney | 8 | Son | — | Pennsylvania |
| 81 | Anna M Keaney | 2 | Daughter | — | Pennsylvania |
| 82 | Alfred H Forner | 42 | Head | Cabinet Maker | Germany |
| 83 | Emma Forner | 41 | Wife | — | Pennsylvania |
| 84 | Anna R Forner | 12 | Daughter | — | Pennsylvania |
| 85 | Alfred J Forner | 10 | Son | — | Pennsylvania |
| 86 | Edward J Forner | 3 | Son | — | Pennsylvania |
| 87 | Elmer H Forker | 36 | Head | Machinist | Pennsylvania |
| 88 | Anna Forker | 36 | Wife | — | Maryland |
| 89 | — | None | — | — | — |
| 90 | — | None | — | — | — |
| 91 | — | None | — | — | — |
| 92 | Albert J Fries | 40 | Head | Conductor | Pennsylvania |
| 93 | Anna S Fries | 36 | Wife | — | Pennsylvania |
| 94 | Louis H Fries | 11 | Son | — | Pennsylvania |
| 95 | Patrick Keating | 36 | Head | Day Laborer | Pennsylvania |
| 96 | Margaret Keating | 32 | Wife | — | Pennsylvania |
| 97 | Michael Keating | 12 | Son | — | Pennsylvania |
| 98 | Martin Keating | 9 | Son | — | Pennsylvania |
| 99 | Joseph Keating | 29 | Brother | Conductor | 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)