JM
James Mahoney — 1900 US Census Record
Model Tree available1900 United States Federal Census · Kings, New York
Our Model Tree links this James Mahoney across the 1900, 1910 and 1920 US Censuses in Kings, New York (XGBoost, ~Confirmed), with identified parents Michael & Hannah — first a son (b.~1880), then head of a 6-person household.
Age 20
b. ~1880
Male
Son
Born: New York
Single
1900 Census Record Details
| Census Year | 1900 |
| Location | Kings, New York |
| Surname | Mahoney |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | New York |
| Birth Month | Feb |
| Birth Year | 1880 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Cigar Store |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Cigar Store |
| Township / Ward | City Of New York Borough Of Brooklyn |
| Est. Birth Year | ~1880 |
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.
6 people recorded at the same address in the 1900 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Nellie Mahoney | Daughter | — | 22 | ~1878 |
| Annie Mahoney | Daughter | — | 28 | ~1872 |
| Michael Mahoney | Son | — | 14 | ~1886 |
| Hannah Mahoney | Spouse | — | 55 | ~1845 |
| Michael Mahoney | Head | — | 56 | ~1844 |
| James Mahoney | Son | — | 20 | ~1880 |
Census Appearances
1900
Kings, New …
Son, age 20
Kings, New York · implied b. ~1880 — 6 household members
| Surname | Mahoney |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | New York |
| Birth Month | Feb |
| Birth Year | 1880 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Cigar Store |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1910
Kings, New …
Son, age 28
Kings, New York · implied b. ~1882 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mahony |
| Given Name | James H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Printer |
| Industry | Printing shop |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1920
Kings, New …
Son, age 39
Kings, New York · implied b. ~1881 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mahony |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Single |
| Birthplace | New York |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | printer |
| Industry | Pub. House |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 (1900, 1910 and 1920) in Kings, New York, using XGBoost record linkage. Identified parents: father Michael Mahoney (~0.92 confidence) and mother Hannah Mahoney (~0.92 confidence) and mother Bridget Mahony (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Michael Mahoney
b. ~1844
Source father
● Household
· direct · ~0.92
Mother
Hannah Mahoney
b. ~1845
Source mother
● Household
· direct · ~0.92
Mother
Bridget Mahony
b. ~1848
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Mahoney
Son · 1900 · age 20 · b. ~1880 · New York
★ You are viewing this record
Sibling
Annie Mahoney
Sibling · 1900 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nellie Mahoney
Sibling · 1900 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Michael Mahoney
Sibling · 1900 · age 14
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
1900 US Federal Census — Kings, New York
Open full size
1900 US Federal Census — Kings, New York
Page Contents
50 people indexed on this census page (ia:1900:12thcensusofpopu1050unit:0477)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles Clifford | 20 | Son | Grocery Clerk | New York |
| 2 | John Clifford | 16 | Son | — | New York |
| 3 | Dennis Clifford | 15 | Son | Telegraph Boy | New York |
| 4 | James Clifford | 18 | Son | At School | New York |
| 5 | Samuel Witt | 43 | Head | Salesman | New York |
| 6 | Caroline Witt | 41 | Wife | — | Germany |
| 7 | Rose Witt | 18 | Daughter | Saleslady | New York |
| 8 | Michael Mahoney | 55 | Head | Laborer | Ireland |
| 9 | Hannah Mahoney | 55 | Wife | — | Ireland |
| 10 | Annie Mahoney | 27 | Daughter | — | New York |
| 11 | Nellie Mahoney | 22 | Daughter | — | New York |
| 12 | James Mahoney THIS PERSON | 20 | Son | Cigar Store | New York |
| 13 | Michael Mahoney | 13 | Son | At School | New York |
| 14 | Thomas Murphy | 30 | Head | Laborer | Ireland |
| 15 | Mary Murphy | 28 | Wife | — | Ireland |
| 16 | Mary Murphy | 8 | Daughter | At School | New York |
| 17 | John Hannon | 44 | Head | Machinist | England |
| 18 | Mary Hannon | 42 | Wife | — | England |
| 19 | Frank Hannon | 21 | Son | Machinist | England |
| 20 | Mary Hannon | 12 | Daughter | At School | New York |
| 21 | James Hannon | 10 | Son | At School | New York |
| 22 | Maggie Hannon | 9 | Daughter | — | New York |
| 23 | Sarah Hannon | 6 | Daughter | — | New York |
| 24 | Christian Holst | 34 | Head | Lighterman | Norway |
| 25 | Augusta Holst | 31 | Wife | — | Sweden |
| 26 | Dagfin Holst | 4 | Son | — | New York |
| 27 | Lillie Holst | 3 | Daughter | — | New York |
| 28 | Martha Holst | 0 | Daughter | — | New York |
| 29 | Thomas O'Brien | 33 | Head | Bartender | Ireland |
| 30 | Mary O'Brien | 33 | Wife | — | Ireland |
| 31 | William O'Brien | 7 | Son | Railroad | New York |
| 32 | Winifred O'Brien | 27 | Daughter | — | New York |
| 33 | John O'Brien | 19 | Son | — | New York |
| 34 | Hannah O'Brien | 18 | Daughter | — | New York |
| 35 | Thomas Flynn | 50 | Head | N. S. | Ireland |
| 36 | Henry Kuroski | 27 | Head | Mail Clerk | Michigan |
| 37 | Kate Kuroski | 23 | Wife | — | Michigan |
| 38 | Margaret Kuroski | 5 | Daughter | — | Michigan |
| 39 | Charles Kuroski | 4 | Son | — | Michigan |
| 40 | Patrick Hill | 65 | Head | N. S. | Ireland |
| 41 | Ann Hill | 65 | Wife | — | Ireland |
| 42 | Thomas Burns | 23 | Head | Glass Worker | New York |
| 43 | Catharine Burns | 19 | Wife | — | New York |
| 44 | Michael Reynolds | 25 | Boarder | Blacksmith | New York |
| 45 | Nicholas Reynolds | 23 | Brother | Packer | New York |
| 46 | Mary Clifford | 48 | Wife | — | Ireland |
| 47 | Thomas Clifford | 26 | Son | Ironworker | New York |
| 48 | Patrick Clifford | 24 | Son | Ironworker | New York |
| 49 | Ellen Clifford | 21 | Daughter | — | New York |
| 50 | Mary Clifford | 19 | Daughter | — | New York |
Pedigree Summary
James + 3 siblings
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1900 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)