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John Mccormack — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Lackawanna, Pennsylvania
Our Model Tree links this John Mccormack across the 1920 and 1930 US Censuses in Lackawanna, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1913), then head of a 9-person household.
Age 17
b. ~1913
Male
Son
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Lackawanna, Pennsylvania |
| Surname | McCormack |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Labour |
| Industry | Coal Storage |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Labour |
| Township / Ward | Carbondale City |
| Est. Birth Year | ~1913 |
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 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| James Mccormack | Son | — | 22 | ~1908 |
| Margaret Mccormack | Daughter | — | 12 | ~1918 |
| Isabell Mccormack | Daughter | — | 20 | ~1910 |
| Paul Mccormack | Son | — | 10 | ~1920 |
| Mary Mccormack | Other | — | 45 | ~1885 |
| Loretta Mccormack | Daughter | — | 6 | ~1924 |
| Edward Mccormack | Son | — | 15 | ~1915 |
| Patrick Mccormack | Head | — | 65 | ~1865 |
| John Mccormack | Son | — | 17 | ~1913 |
Census Appearances
1920
Lackawanna, Pennsylvania
Son, age 6
Lackawanna, Pennsylvania · implied b. ~1914 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCormack |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| 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 |
1930
Lackawanna, Pennsylvania
Son, age 17
Lackawanna, Pennsylvania · implied b. ~1913 — 9 household members
| Surname | McCormack |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Labour |
| Industry | Coal Storage |
| Class of Worker | W |
| Can Read/Write | 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 Mccormack across 2 US Census years (1920 and 1930) in Lackawanna, Pennsylvania, using XGBoost record linkage.
Show:
This person
Anchor record
John Mccormack
Son · 1930 · age 17 · b. ~1913 · Pennsylvania
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Sibling
Margaret Mccormack
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Mccormack
Sibling · 1930 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Loretta Mccormack
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Isabell Mccormack
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Mccormack
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Mccormack
Sibling · 1930 · age 15
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 — Lackawanna, Pennsylvania
Open full size
1930 US Federal Census — Lackawanna, Pennsylvania
Page Contents
35 people indexed on this census page (ia:1930:fifteenthcensus00reel2048:0585)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Rachael Ferraro | 65 | Wife-H | — | Italy |
| 52 | Ida Tolerico | 24 | Head | — | Italy |
| 53 | Christine Tolerico | 8 | Daughter | — | New York |
| 54 | Margaret Tolerico | 6 | Daughter | — | New York |
| 55 | Ida Tolerico | 4 | Daughter | — | Pennsylvania |
| 56 | Virgil Barrows | 36 | Head | Labour | New York |
| 57 | Beatrice Barrows | 28 | Wife-H | — | Pennsylvania |
| 58 | James Barrows | 5 | Step Son | — | Pennsylvania |
| 59 | Everett Barrows | 3 | Step Son | — | Pennsylvania |
| 60 | Joseph Grizanti | 64 | Head | Labour | Italy |
| 61 | Josephine Grizanti | 52 | Wife-H | — | Italy |
| 62 | Anthony Grizanti | 17 | Son | Driver | West Virginia |
| 63 | Realaldo Grizanti | 13 | Son | — | West Virginia |
| 64 | Mary Grizanti | 11 | Daughter | — | West Virginia |
| 65 | Vincenzo Russo | 37 | Head | Labour | Italy |
| 66 | Angela Russo | 23 | Wife-H | — | Italy |
| 67 | Johanna Russo | 1 | Daughter | — | Pennsylvania |
| 68 | Bridget Mchale | 58 | Head | — | Ohio |
| 69 | William Ryan | 34 | Head | Machinist Helper | Pennsylvania |
| 70 | Alice Ryan | 35 | Wife-H | — | Pennsylvania |
| 71 | Eugene Ryan | 19 | Son | Mechanic | Pennsylvania |
| 72 | William Jr. Ryan | 16 | Son | — | Pennsylvania |
| 73 | Joseph Ryan | 11 | Son | — | Pennsylvania |
| 74 | Charles Boland | 15 | Nephew | — | Pennsylvania |
| 75 | Ellen Boland | 12 | Niece | — | Pennsylvania |
| 76 | Kenneth Martin | 9 | Nephew | — | Pennsylvania |
| 77 | Patrick Mccormack | 65 | Head | Labour | Pennsylvania |
| 78 | Mary Mccormack | 45 | Wife-H | — | Pennsylvania |
| 79 | James Mccormack | 22 | Son | Manager | Pennsylvania |
| 80 | Isabell Mccormack | 20 | Daughter | Usher | Pennsylvania |
| 81 | John Mccormack THIS PERSON | 17 | Son | Labour | Pennsylvania |
| 82 | Edward Mccormack | 15 | Son | — | Pennsylvania |
| 83 | Margaret Mccormack | 12 | Daughter | — | Pennsylvania |
| 84 | Paul Mccormack | 10 | Son | — | Pennsylvania |
| 85 | Loretta Mccormack | 6 | Daughter | — | 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)