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John Mccormack — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Luzerne, Pennsylvania
Our Model Tree links this John Mccormack across the 1930 and 1940 US Censuses in Luzerne, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1900), then head of a 8-person household.
Age 30
b. ~1900
Male
Son
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Luzerne, Pennsylvania |
| Surname | McCormack |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Additional Details | |
| Occupation | Yardmaster |
| Industry | Railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Yardmaster |
| Township / Ward | Hanover Township |
| Est. Birth Year | ~1900 |
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 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Nancy Mccormack | Daughter | — | 27 | ~1903 |
| Francis Mccormack | Son | — | 22 | ~1908 |
| Jerome Mccormack | Son | — | 20 | ~1910 |
| Peter Mccormack | Son | — | 25 | ~1905 |
| John Mccormack | Son | — | 30 | ~1900 |
| Margaret Mccormack | Spouse | — | 53 | ~1877 |
| Patrick Mccormack | Head | — | 59 | ~1871 |
| Margaret Mccormack | Daughter | — | 17 | ~1913 |
Census Appearances
1930
Luzerne, Pennsylvania
Son, age 30
Luzerne, Pennsylvania · implied b. ~1900 — 8 household members
| Surname | McCormack |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Occupation | Yardmaster |
| Industry | Railroad |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1940
Luzerne-County, Pennsylvania
Head, age 41
Luzerne-County, Pennsylvania · implied b. ~1899 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McCormick |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Pennsylvania |
| 1935 Residence (City) | Wilkes-Barre City |
| 1935 Residence (County) | Luzerne |
| Occupation | Yardmaster |
| Industry | Steam Railroad |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 2904 |
| Highest Grade | C-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 John Mccormack across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Mccormack
Son · 1930 · age 30 · b. ~1900 · Pennsylvania
★ You are viewing this record
Sibling
Peter Mccormack
Sibling · 1930 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Mccormack
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nancy Mccormack
Sibling · 1930 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Mccormack
Sibling · 1930 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jerome Mccormack
Sibling · 1930 · age 20
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 — Luzerne, Pennsylvania
Open full size
1930 US Federal Census — Luzerne, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel2067:0837)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Rhoda Thomas | 5 | Daughter | None | Pennsylvania |
| 2 | Wilbur Kritzman | 24 | Head | Laborer | Pennsylvania |
| 3 | Jessie Kritzman | 23 | Wife | None | Pennsylvania |
| 4 | Elizabeth Kritzman | 2 | Daughter | None | Pennsylvania |
| 5 | Wilbur Jr. Kritzman | 0 | Son | None | Pennsylvania |
| 6 | James Mulcahy | 43 | Head | Blacksmith | Pennsylvania |
| 7 | Margaret Mulcahy | 38 | Wife | None | Pennsylvania |
| 8 | James Mulcahy | 18 | Son | Spinner | Pennsylvania |
| 9 | Edward Mulcahy | 16 | Son | Spinner | Pennsylvania |
| 10 | Bernard Mulcahy | 13 | Son | None | Pennsylvania |
| 11 | Ruth Mulcahy | 9 | Daughter | None | Pennsylvania |
| 12 | Margaret Mulcahy | 5 | Daughter | None | Pennsylvania |
| 13 | Anne Mulcahy | 1 | Daughter | None | Pennsylvania |
| 14 | Francis Temarantz | 33 | Head | Laborer | Italy |
| 15 | Idalia Temarantz | 39 | Wife | None | Germany |
| 16 | Francis Temarantz | 9 | Son | None | Pennsylvania |
| 17 | Joseph Temarantz | 8 | Son | None | Pennsylvania |
| 18 | Ralph Temarantz | 6 | Son | None | Pennsylvania |
| 19 | Donald Temarantz | 4 | Son | None | Pennsylvania |
| 20 | John Temarantz | 1 | Son | None | Pennsylvania |
| 21 | Benjamin Yates | 43 | Head | Laborer | Pennsylvania |
| 22 | Catherine Yates | 37 | Wife | None | Pennsylvania |
| 23 | Charlotte Yates | 11 | Daughter | None | Pennsylvania |
| 24 | Catherine Yates | 5 | Daughter | None | Pennsylvania |
| 25 | Charles Yates | 4 | Son | None | Pennsylvania |
| 26 | Helene O'Neill | 19 | Head | None | Pennsylvania |
| 27 | Edmund O'Neill | 18 | Brother | Usher | Pennsylvania |
| 28 | Harry O'Neill | 16 | Brother | Spinner | Pennsylvania |
| 29 | Ralph O'Neill | 14 | Brother | None | Pennsylvania |
| 30 | Laura O'Neill | 12 | Sister | None | Pennsylvania |
| 31 | Ruth O'Neill | 10 | Sister | None | Pennsylvania |
| 32 | William Kishbaugh | 45 | Head | Laborer | Pennsylvania |
| 33 | Hanna Kishbaugh | 53 | Wife | None | Pennsylvania |
| 34 | Walter Kishbaugh | 12 | Son | None | Pennsylvania |
| 35 | Mary Kishbaugh | 72 | Mother | None | Pennsylvania |
| 36 | Stanley Janick | 40 | Head | Laborer | Russia |
| 37 | Pauline Janick | 34 | Wife | None | Poland |
| 38 | Ethel Janick | 14 | Daughter | None | Pennsylvania |
| 39 | Kazimir Janick | 5 | Son | None | Pennsylvania |
| 40 | Patrick V. Mccormack | 59 | Head | Salesman | Irish Free State |
| 41 | Margaret Mccormack | 53 | Wife | None | Irish Free State |
| 42 | John Mccormack THIS PERSON | 30 | Son | Yardmaster | Pennsylvania |
| 43 | Nancy Mccormack | 27 | Daughter | Teacher | Pennsylvania |
| 44 | Peter Mccormack | 25 | Son | Laborer | Pennsylvania |
| 45 | Francis Mccormack | 22 | Son | Laborer | Pennsylvania |
| 46 | Jerome Mccormack | 20 | Son | Clerk | Pennsylvania |
| 47 | Margaret Mccormack | 17 | Daughter | None | Pennsylvania |
| 48 | Francis Donohoe | 39 | Head | Laborer | Pennsylvania |
| 49 | Catherine Donohoe | 39 | Wife | None | Pennsylvania |
| 50 | Philip Muck | 31 | Head | Salesman | 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)