JM
James Mahoney — 1930 US Census Record
Model Tree available1930 United States Federal Census · Northampton, Pennsylvania
Our Model Tree links this James Mahoney across the 1910, 1920 and 1930 US Censuses in Northampton, Pennsylvania (XGBoost, ~Confirmed), with identified parents Timothy & Annie — first a son (b.~1907), then head of a 8-person household.
Age 23
b. ~1907
Male
Son
Born: Pennsylvania
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Northampton, Pennsylvania |
| Surname | Mahoney |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Clerk |
| Industry | S. Valley RR |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
| Occupation | Clerk |
| Township / Ward | Bethlehem City |
| Est. Birth Year | ~1907 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| James Mahoney | Other | — | 50 | ~1880 |
| Mary Mahoney | Daughter | — | 18 | ~1912 |
| Julia Mahoney | Daughter | — | 29 | ~1901 |
| James Mahoney | Son | — | 23 | ~1907 |
| Timothy Mahoney | Head | — | 60 | ~1870 |
| Hanna Mahoney | Daughter | — | 31 | ~1899 |
| Patrick Mahoney | Son | — | 26 | ~1904 |
| Annie Mahoney | Spouse | — | 60 | ~1870 |
Census Appearances
1910
Northampton, Pennsylvania
Son, age 2
Northampton, Pennsylvania · implied b. ~1908 — 13 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mahoney |
| Given Name | Joseph |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1920
Northampton, Pennsylvania
Son, age 12
Northampton, Pennsylvania · implied b. ~1908 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mahony |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Pennsylvania |
| Birth Country | United States |
| Birthplace (normalized) | pennsylvania |
1930
Northampton, Pennsylvania
Son, age 23
Northampton, Pennsylvania · implied b. ~1907 — 8 household members
| Surname | Mahoney |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Pennsylvania |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Clerk |
| Industry | S. Valley RR |
| 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 James Mahoney across 3 US Census years (1910, 1920 and 1930) in Northampton, Pennsylvania, using XGBoost record linkage. Identified parents: father Timothy Mahoney (~0.92 confidence) and mother Annie Mahoney (~0.92 confidence) and mother Hannah Mahoney (~0.92 confidence) and father Patrick Mahony (~0.92 confidence) and mother Mary Mahony (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Timothy Mahoney
b. ~1868
Source father
● Household
· direct · ~0.92
Mother
Annie Mahoney
b. ~1870
Source mother
● Household
· direct · ~0.92
Mother
Hannah Mahoney
b. ~1870
Source mother
● Household
· direct · ~0.92
Father
Patrick Mahony
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Mary Mahony
b. ~1876
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Mahoney
Son · 1930 · age 23 · b. ~1907 · Pennsylvania
★ You are viewing this record
Sibling
Hanna Mahoney
Sibling · 1930 · age 31
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Julia Mahoney
Sibling · 1930 · age 29
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Mahoney
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Patrick Mahoney
Sibling · 1930 · age 26
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 — Northampton, Pennsylvania
Open full size
1930 US Federal Census — Northampton, Pennsylvania
Page Contents
50 people indexed on this census page (ia:1930:fifteenthcensus00reel2086:0411)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Steve Podder | 45 | Head | Machinist | Hungary |
| 2 | Anna Podder | 32 | Wife | — | Hungary |
| 3 | Helen Podder | 14 | Daughter | — | Pennsylvania |
| 4 | William Podder | 11 | Son | — | Pennsylvania |
| 5 | Steve Jr. Podder | 12 | Son | — | Pennsylvania |
| 6 | Joseph Podder | 9 | Son | — | Pennsylvania |
| 7 | Charles Podder | 7 | Son | — | Pennsylvania |
| 8 | Frank Podder | 5 | Son | — | Pennsylvania |
| 9 | Timothy Mahoney | 60 | Head | Labor | Ireland |
| 10 | Annie G. Mahoney | 60 | Wife | — | Ireland |
| 11 | Hanna Mahoney | 31 | Daughter | Clerk | Pennsylvania |
| 12 | Julia Mahoney | 29 | Daughter | Housework | Pennsylvania |
| 13 | Patrick Mahoney | 26 | Son | Labor | Pennsylvania |
| 14 | James Mahoney THIS PERSON | 23 | Son | Clerk | Pennsylvania |
| 15 | Mary Mahoney | 18 | Daughter | — | Pennsylvania |
| 16 | James J. Mahoney | 50 | Boarder | Janitor | Ireland |
| 17 | Rose Cavanaugh | 46 | Head | — | Pennsylvania |
| 18 | Hanna Cavanaugh | 22 | Daughter | Doubler | Pennsylvania |
| 19 | Rose Cavanaugh | 20 | Daughter | Clerk | Pennsylvania |
| 20 | Elizabeth Cavanaugh | 19 | Daughter | Waitress | Pennsylvania |
| 21 | Joseph Cavanaugh | 15 | Son | — | Pennsylvania |
| 22 | Francis A. Cavanaugh | 12 | Daughter | — | Pennsylvania |
| 23 | Mary O'Connell | 28 | Daughter | Clerk | Pennsylvania |
| 24 | Thomas O'Connell | 38 | Son-in-law | Piece Rate Clerk | Pennsylvania |
| 25 | Catherine O'Donnell | 51 | Lodger | Winder | Pennsylvania |
| 26 | Barney O'Donnell | 45 | Lodger | Electrician | Pennsylvania |
| 27 | Frank Kopics | 45 | Head | Merchant | Hungary |
| 28 | Anna Kopics | 42 | Wife | — | Hungary |
| 29 | Ethel Kopics | 23 | Daughter | — | Pennsylvania |
| 30 | Anna Kopics | 21 | Daughter | Weaving | Pennsylvania |
| 31 | Louis Kopics | 19 | Son | Busher | Pennsylvania |
| 32 | Teresa Kopics | 17 | Daughter | Weaving | Pennsylvania |
| 33 | Helen Kopics | 16 | Daughter | — | Pennsylvania |
| 34 | Charles Kopics | 14 | Son | — | Pennsylvania |
| 35 | Elizabeth Kopics | 12 | Daughter | — | Pennsylvania |
| 36 | Dan Kopics | 10 | Son | — | Pennsylvania |
| 37 | William Kopics | 8 | Son | — | Pennsylvania |
| 38 | Sarah Whaley | 73 | Head | — | Irish Free State |
| 39 | Charles Whaley | 43 | Son | Clerk | Pennsylvania |
| 40 | John Szo | 49 | Head | — | Hungary |
| 41 | Mary Szo | 46 | Wife | — | Hungary |
| 42 | Dorothy E. Piney | 9 | Daughter | — | Pennsylvania |
| 43 | John Tartel | 55 | Head | Carpenter | Hungary |
| 44 | Mary Tartel | 47 | Wife | — | Hungary |
| 45 | George Tartel | 15 | Son | — | Pennsylvania |
| 46 | Alex Tartel | 13 | Son | — | Pennsylvania |
| 47 | Mary Tartel | 8 | Daughter | — | Pennsylvania |
| 48 | Julius Ramacci | 33 | Head | Labor | Italy |
| 49 | Mary Ramacci | 20 | Wife | — | Virginia |
| 50 | Francis Ramacci | 0 | Daughter | — | Pennsylvania |
Pedigree Summary
James + 4 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)