JD
James Duffy — 1920 US Census Record
Linked across censuses1920 United States Federal Census · New York, New York
Our Model Tree links this James Duffy across the 1900, 1910 and 1920 US Censuses in New York, New York (XGBoost, ~Confirmed) — first a head (b.~1872), then head of a 7-person household.
Age 48
b. ~1872
Male
Head
Born: Ireland
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | New York, New York |
| Surname | Duffy |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1890 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Messenger |
| Industry | Bank |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Eng. |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Year of Naturalization | 1900 |
| Birthplace (normalized) | ireland |
| Occupation | Messenger |
| Township / Ward | New York City |
| Est. Birth Year | ~1872 |
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.
7 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Agnes Duffy | Daughter | — | 15 | ~1905 |
| James Duffy | Head | — | 48 | ~1872 |
| John Duffy | Son | — | 19 | ~1901 |
| James Duffy | Son | — | 26 | ~1894 |
| Luke Duffy | Son | — | 18 | ~1902 |
| Joseph Duffy | Son | — | 12 | ~1908 |
| Mary Duffy | Spouse | — | 50 | ~1870 |
Census Appearances
1900
New York, …
Head, age 30
New York, New York · implied b. ~1870 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duffy |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Ireland |
| Birth Month | Nov |
| Birth Year | 1870 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Silversmith |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1910
New York, …
Head, age 39
New York, New York · implied b. ~1871 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Duffy |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Ireland |
| Years Married | 15 |
| Year of Immigration | 1890 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Foreman |
| Industry | Railroading |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
New York, …
Head, age 48
New York, New York · implied b. ~1872 — 7 household members
| Surname | Duffy |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1890 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Messenger |
| Industry | Bank |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Eng. |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Year of Naturalization | 1900 |
| Birthplace (normalized) | ireland |
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 Duffy across 3 US Census years (1900, 1910 and 1920) in New York, New York, using XGBoost record linkage.
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This person
Anchor record
James Duffy
Head · 1920 · age 48 · b. ~1872 · New York
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — New York, New York
Open full size
1920 US Federal Census — New York, New York
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu1198unit:0741)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Georgina Dieter | 7 | Daughter | None | N. Y. |
| 52 | Eva Meade | 42 | Head | None | N. Y. |
| 53 | Edith Meade | 45 | Sister | None | N. Y. |
| 54 | Olga Mutria | 28 | Roomer | Dressmaker | N. Y. |
| 55 | James Duffy THIS PERSON | 48 | Head | Messenger | Ireland |
| 56 | Mary Duffy | 50 | Wife | None | Ireland |
| 57 | James Duffy | 26 | Son | Fireman | N. Y. |
| 58 | John Duffy | 19 | Son | Machinist | N. Y. |
| 59 | Luke Duffy | 18 | Son | Clerical Wk | N. Y. |
| 60 | Agnes Duffy | 15 | Daughter | None | N. Y. |
| 61 | Joseph Duffy | 12 | Son | None | N. Y. |
| 62 | Julius Tess | 34 | Head | Accountant | Germany |
| 63 | Elizabeth Tess | 33 | Wife | None | Germany |
| 64 | Arthur Tess | 8 | Son | None | N. Y. |
| 65 | Reinke Klein | 22 | Brother-in-law | Driver | Germany |
| 66 | Mary Maher | 48 | Head | None | Ireland |
| 67 | Joseph E. Maher | 31 | Son | None | N. Y. |
| 68 | John F. Maher | 27 | Son | Chauffeur | N. Y. |
| 69 | Mary E. Maher | 24 | Daughter | Cashier | N. Y. |
| 70 | Agnes M. Thompson | 19 | Daughter | None | N. Y. |
| 71 | Fred W. Thompson | 23 | Son-in-law | Actor | Mich. |
| 72 | Mary E. Wilson | 57 | Head | None | Ireland |
| 73 | William J. Wilson | 34 | Son | Salesman | N. Y. |
| 74 | Philip Murray | 69 | Head | Stationery Engr | Ireland |
| 75 | Philip J. Murray | 28 | Son | Bookkeeper | N. Y. |
| 76 | John F. Murray | 24 | Son | Salesman | N. Y. |
| 77 | James Murray | 21 | Son | Accountant | N. Y. |
| 78 | Elizabeth Murray | 19 | Daughter | None | N. Y. |
| 79 | Harold S. Plummer | 66 | Head | None | Maine |
| 80 | Ida Plummer | 56 | Wife | None | N. Y. |
| 81 | Sophia H. Smith | 60 | Head | None | N. Y. |
| 82 | Willard G. Smith | 37 | Son | Clerk | N. Y. |
| 83 | Rachael S. Smith | 35 | Daughter | Stenog | N. Y. |
| 84 | Clarence H. Smith | 32 | Son | Clerk | N. Y. |
| 85 | Albert Bechman | 64 | Head | Sand Paper | Germany |
| 86 | Marie Bechman | 57 | Wife | None | Germany |
| 87 | Marie O'Brien | 32 | Daughter | Actress | N. Y. |
| 88 | Paul O'Brien | 32 | Son-in-law | None | N. Y. |
| 89 | Joseph O'Brien | 22 | Son | Wireman | N. Y. |
| 90 | Thomas O'Brien | 30 | Son-in-law | Acrobat | Ohio |
| 91 | William Mckenzie | 58 | Head | Builder | Scotland |
| 92 | Christina Mckenzie | 57 | Wife | None | Scotland |
| 93 | Paul Ed Dressing | 45 | Head | Manager | Germany |
| 94 | Clara Dressing | 42 | Wife | None | Germany |
| 95 | Gladys Dressing | 10 | Daughter | None | N. Y. |
| 96 | Christian Meyer | 72 | Father-in-law | None | Germany |
| 97 | Clarence E. Walsh | 45 | Head | Ice Bus (Supt) | Penn. |
| 98 | Vincent P. Walsh | 19 | Son | None | N. Y. |
| 99 | Rose Lehavier | 49 | Head | None | Germany |
| 100 | Meta Lehavier | 24 | Daughter | Stenog | N. Y. |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)