JH
John Hennessey — 1900 US Census Record
Linked across censuses1900 United States Federal Census · New York, New York
Our Model Tree links this John Hennessey across the 1900, 1910, 1920 and 1930 US Censuses in New York, New York (XGBoost, ~Confirmed) — first a head (b.~1853), then head of a 3-person household.
Age 47
b. ~1853
Male
Head
Born: Ireland
Married
1900 Census Record Details
| Census Year | 1900 |
| Location | New York, New York |
| Surname | Hennessey |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Ireland |
| Birth Month | Aug |
| Birth Year | 1853 |
| Year of Immigration | 1871 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | Borough Of Manhattan |
| Est. Birth Year | ~1853 |
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.
3 people recorded at the same address in the 1900 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| William Hennessey | Son | — | 9 | ~1891 |
| John Hennessey | Head | — | 47 | ~1853 |
| Annie Hennessey | Daughter | — | 5 | ~1895 |
Census Appearances
1900
New York, …
Head, age 47
New York, New York · implied b. ~1853 — 3 household members
| Surname | Hennessey |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | Ireland |
| Birth Month | Aug |
| Birth Year | 1853 |
| Year of Immigration | 1871 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1910
New York, …
Head, age 52
New York, New York · implied b. ~1858 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hennessy |
| Given Name | John D. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Ireland |
| Years Married | 30 |
| Year of Immigration | 1873 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Foreman |
| Industry | Water Dept. |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
New York, …
Head, age 61
New York, New York · implied b. ~1859 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hennessy |
| Given Name | Joseph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Ireland |
| Year of Immigration | 1875 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Industry | Custom |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Year of Naturalization | 1890 |
| Birthplace (normalized) | ireland |
1930
New York, …
Head, age 72
New York, New York · implied b. ~1858 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hennessey |
| Given Name | Joseph |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 72 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1870 |
| Age at First Marriage | 28 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 25 |
| Veteran | No |
| Birth Country | Ireland |
| 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 John Hennessey across 4 US Census years (1900, 1910, 1920 and 1930) in New York, New York, using XGBoost record linkage.
Show:
This person
Anchor record
John Hennessey
Head · 1900 · age 47 · b. ~1853 · New York
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1900 US Federal Census — New York, New York
Open full size
1900 US Federal Census — New York, New York
Page Contents
50 people indexed on this census page (ia:1900:12thcensusofpopu1082unit:0522)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Catherine Murphy | 8 | Daughter | At School | New York |
| 52 | John Murphy | 1 | Son | — | New York |
| 53 | Lawrence O'Brien | 53 | Head | Driver | Ireland |
| 54 | Annie O'Brien | 45 | Wife | Dressmaker | Ireland |
| 55 | Margaret O'Brien | 31 | Daughter | Dressmaker | New York |
| 56 | Catherine O'Brien | 28 | Daughter | Housework | New York |
| 57 | Matthew O'Brien | 26 | Son | Dept. Public Works | New York |
| 58 | James O'Brien | 21 | Son | Driver | New York |
| 59 | Margaret Shea | 7 | Grand Daughter | At School | New York |
| 60 | Kathleen Shea | 6 | Grand Daughter | At School | New York |
| 61 | Jeremiah Doyle | 27 | Head | Laborer | Ireland |
| 62 | Catherine Doyle | 27 | Wife | — | Ireland |
| 63 | Elizabeth Doyle | 5 | Daughter | — | New York |
| 64 | Peter Doyle | 2 | Son | — | New York |
| 65 | Sylvanus Guervert | 35 | Head | Glassworker | Belgium |
| 66 | Mary Guervert | 36 | Wife | — | Belgium |
| 67 | Annie Guervert | 12 | Daughter | At School | Belgium |
| 68 | Bertha Guervert | 9 | Daughter | At School | Belgium |
| 69 | Armand Guervert | 1 | Son | — | New York |
| 70 | George Cunningham | 28 | Head | Driver | Ireland |
| 71 | Annie Cunningham | 37 | Wife | — | Ireland |
| 72 | Edward Mcelvany | 28 | Boarder | Laborer | Ireland |
| 73 | James Cannon | 45 | Head | Laborer | Ireland |
| 74 | Bernard Cannon | 18 | Son | Grocery Clerk | New York |
| 75 | Mary Cannon | 16 | Daughter | Dressmaker | New York |
| 76 | John Cannon | 14 | Son | Errand Boy | New York |
| 77 | James Cannon | 10 | Son | At School | New York |
| 78 | Edward Cannon | 8 | Son | At School | New York |
| 79 | John Hogg | 35 | Head | Glassworker | Belgium |
| 80 | Margaret Hogg | 45 | Wife | — | Ireland |
| 81 | John Hennessey THIS PERSON | 46 | Head | — | Ireland |
| 82 | William Hennessey | 9 | Son | — | New York |
| 83 | Annie Hennessey | 5 | Daughter | — | New York |
| 84 | Rose Sentan | 77 | Head | — | Ireland |
| 85 | Paul Morell | 36 | Head | Blacksmith | France |
| 86 | Adell Morell | 26 | Wife | — | France |
| 87 | Joseph Morell | 8 | Son | — | New Jersey |
| 88 | Catherine Conlon | 29 | Head | — | Ireland |
| 89 | Patrick Dignan | 45 | Boarder | Laborer | Ireland |
| 90 | Thomas Hassett | 31 | Head | Driver | New York |
| 91 | Ellen Hassett | 33 | Wife | — | New York |
| 92 | Timothy Hassett | 9 | Son | — | New York |
| 93 | Ethel Hassett | 6 | Daughter | — | New York |
| 94 | Alice Hassett | 4 | Daughter | — | New York |
| 95 | John Hassett | 2 | Son | — | New York |
| 96 | Thomas Hassett | 0 | Son | — | New York |
| 97 | Alfred Hassett | 0 | Son | — | New York |
| 98 | — | None | Head | — | Italy |
| 99 | — | None | Wife | — | Italy |
| 100 | — | None | Son | — | Italy |
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)