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John Mack — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Philadelphia, Pennsylvania
Our Model Tree links this John Mack across the 1920 and 1930 US Censuses in Philadelphia, Pennsylvania (XGBoost, ~Confirmed) — first a son (b.~1913), then head of a 10-person household.
Age 17
b. ~1913
Male
Son
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Philadelphia, Pennsylvania |
| Surname | Mack |
| 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 | |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Township / Ward | Philadelphia 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.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Joseph Mack | Head | — | 52 | ~1878 |
| Joseph Mack | Son | — | 24 | ~1906 |
| Catherine Mack | Daughter | — | 5 | ~1925 |
| John Mack | Son | — | 17 | ~1913 |
| Mary Mack | Spouse | — | 48 | ~1882 |
| Frances Mack | Daughter | — | 8 | ~1922 |
| William Mack | Son | — | 11 | ~1919 |
| Charles Mack | Son | — | 22 | ~1908 |
| Edward Mack | Son | — | 19 | ~1911 |
| Robert Mack | Son | — | 14 | ~1916 |
Census Appearances
1920
Philadelphia, Pennsylvania
Son, age 6
Philadelphia, Pennsylvania · implied b. ~1914 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mack |
| 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 |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Philadelphia, Pennsylvania
Son, age 17
Philadelphia, Pennsylvania · implied b. ~1913 — 10 household members
| Surname | Mack |
| 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 |
| 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 Mack across 2 US Census years (1920 and 1930) in Philadelphia, Pennsylvania, using XGBoost record linkage.
Show:
This person
Anchor record
John Mack
Son · 1930 · age 17 · b. ~1913 · Pennsylvania
★ You are viewing this record
Sibling
William Mack
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine Mack
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Mack
Sibling · 1930 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Mack
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Mack
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Frances Mack
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Mack
Sibling · 1930 · age 22
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 — Philadelphia, Pennsylvania
Open full size
1930 US Federal Census — Philadelphia, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel2126:0715)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph Gennolo | 40 | Head | — | Pennsylvania |
| 2 | Josephine Gennolo | 40 | Wife | — | Pennsylvania |
| 3 | Andrew F Rees | 40 | Head | Machinist | Pennsylvania |
| 4 | Mary Rees | 38 | Wife | — | Scotland |
| 5 | Evelyn M Rees | 23 | Daughter | — | Pennsylvania |
| 6 | Hilda Rees | 23 | Lodger | Operator | Pennsylvania |
| 7 | Harry Fracoma | 34 | Head | Chauffeur | Pennsylvania |
| 8 | Beatrice Fracoma | 30 | Wife | — | Italy |
| 9 | Marie Fracoma | 5 | Daughter | — | Pennsylvania |
| 10 | Caroline Fracoma | 4 | Daughter | — | Pennsylvania |
| 11 | Harry Jr Fracoma | 2 | Son | — | Pennsylvania |
| 12 | Joanne Fracoma | 21 | Sister-in-law | Operator | Pennsylvania |
| 13 | Gertrude Fracoma | 61 | Mother-in-law | — | Italy |
| 14 | Joseph Spector | 41 | Head | Tailor | Russia |
| 15 | Sarah Spector | 39 | Wife | — | Russia |
| 16 | Samuel Spector | 16 | Son | — | Pennsylvania |
| 17 | David Spector | 14 | Son | — | Pennsylvania |
| 18 | Robert Spector | 11 | Son | — | Pennsylvania |
| 19 | Ruth Spector | 9 | Daughter | — | Pennsylvania |
| 20 | Albert Spector | 7 | Son | — | Pennsylvania |
| 21 | Manuel Spector | 2 | Son | — | Pennsylvania |
| 22 | Edward Cramp | 61 | Head | — | Pennsylvania |
| 23 | Mary Cramp | 61 | Wife | — | Pennsylvania |
| 24 | Michael J Galligan | 47 | Head | Watchman | Irish Free State |
| 25 | Mary Galligan | 52 | Wife | — | Irish Free State |
| 26 | Joseph Mack | 52 | Head | Machinist | Pennsylvania |
| 27 | Mary Mack | 48 | Wife | — | Pennsylvania |
| 28 | Joseph Jr Mack | 24 | Son | Clerk | Pennsylvania |
| 29 | Charles Mack | 22 | Son | Clerk | Pennsylvania |
| 30 | Edward Mack | 19 | Son | Clerk | Pennsylvania |
| 31 | John Mack THIS PERSON | 17 | Son | — | Pennsylvania |
| 32 | Robert Mack | 14 | Son | — | Pennsylvania |
| 33 | William Mack | 11 | Son | — | Pennsylvania |
| 34 | Frances Mack | 8 | Daughter | — | Pennsylvania |
| 35 | Catherine Mack | 5 | Daughter | — | Pennsylvania |
| 36 | Daniel Jagger | 42 | Head | Machinist | England |
| 37 | Eliza Jagger | 42 | Wife | — | England |
| 38 | Daniel Jr Jagger | 19 | Son | Machinist | England |
| 39 | Christian Speiz | 53 | Head | Pattern Maker | Germany |
| 40 | Mary Speiz | 53 | Wife | — | Germany |
| 41 | John Speiz | 25 | Son | Pattern Maker | Pennsylvania |
| 42 | Christian Jr Speiz | 23 | Son | Pattern Maker | Pennsylvania |
| 43 | Mary Speiz | 16 | Daughter | — | Pennsylvania |
| 44 | Michael J Smith | 45 | Head | Conductor | Pennsylvania |
| 45 | Rose Smith | 40 | Wife | — | Pennsylvania |
| 46 | Bertram Smith | 4 | Son | — | Pennsylvania |
| 47 | Walter Smith | 2 | Son | — | Pennsylvania |
| 48 | Bernard Smith | 43 | Brother | Conductor | Pennsylvania |
| 49 | Philip Smith | 42 | Brother | — | Pennsylvania |
| 50 | Regina Gleason | 31 | Sister-in-law | — | 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)