MD
Mary Dempsey — 1930 US Census Record
Linked across censuses1930 United States Federal Census · New York, New York
Our Model Tree links this Mary Dempsey across the 1900, 1910, 1920 and 1930 US Censuses in New York, New York (XGBoost, ~Confirmed) — first a head (b.~1854), then head of a 5-person household.
Age 76
b. ~1854
Female
Head
Born: Ireland
Widowed
1930 Census Record Details
| Census Year | 1930 |
| Location | New York, New York |
| Surname | Dempsey |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 76 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Naturalization Status | First papers filed |
| Year of Immigration | 1872 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 85.00 |
| Radio Set | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | New York City |
| Est. Birth Year | ~1854 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Sarah Boyle | Daughter | — | 36 | ~1894 |
| Mary Cox | Daughter | — | 45 | ~1885 |
| Mary Dempsey | Head | — | 76 | ~1854 |
| Clyde Boyle | Other | — | 36 | ~1894 |
| Rita Dempsey | Daughter | — | 16 | ~1914 |
Census Appearances
1900
New York, …
Spouse, age 39
New York, New York · implied b. ~1861 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dempsey |
| Given Name | Maria |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Ireland |
| Birth Month | Aug |
| Birth Year | 1861 |
| Year of Immigration | 1876 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Helper |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1910
New York, …
Head, age 51
New York, New York · implied b. ~1859 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dempsey |
| Given Name | Mariah |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 51 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Children Born | 10 |
| Children Living | 5 |
| Year of Immigration | 1876 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
New York, …
Head, age 65
New York, New York · implied b. ~1855 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dempsey |
| Given Name | Maria |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 65 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1874 |
| Naturalization Status | Alien |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
New York, …
Head, age 76
New York, New York · implied b. ~1854 — 5 household members
| Surname | Dempsey |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 76 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Naturalization Status | First papers filed |
| Year of Immigration | 1872 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 85.00 |
| Radio Set | R |
| 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 Mary Dempsey across 4 US Census years (1900, 1910, 1920 and 1930) in New York, New York, using XGBoost record linkage.
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This person
Anchor record
Mary Dempsey
Head · 1930 · age 76 · b. ~1854 · New York
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — New York, New York
Open full size
1930 US Federal Census — New York, New York
Page Contents
50 people indexed on this census page (ia:1930:newyorkcensus00reel1579:1102)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Helen Tanenbaum | 9 | Niece | — | New York |
| 52 | Joseph Muntrock | 65 | Head | Owner | Russia |
| 53 | Sophie Muntrock | 65 | Wife-H | — | Russia |
| 54 | Bertha Abrams | 61 | Roomer | — | Poland |
| 55 | Simon Abrams | 40 | Roomer | — | Poland |
| 56 | Isaac Kleinberg | 54 | Head | Salesman | Austria |
| 57 | Fannie Kleinberg | 54 | Wife-H | — | Austria |
| 58 | Lottie Kleinberg | 27 | Daughter | Stenographer | New York |
| 59 | Morris Kleinberg | 25 | Son | Salesman | New York |
| 60 | Jack Kleinberg | 20 | Son | Electrician | New York |
| 61 | Meyer Kleinberg | 16 | Son | — | New York |
| 62 | Seymour Kleinberg | 13 | Son | — | New York |
| 63 | Elizabeth Davies | 64 | Head-H | — | Wales |
| 64 | Mabel Davies | 31 | Daughter | Stenographer | New York |
| 65 | Sarah Anthony | 56 | Boarder | Governess | Wales |
| 66 | Hans Joel | 63 | Head | — | Berlin Germany |
| 67 | Henrietta Joel | 54 | Wife-H | — | Germany |
| 68 | Werner Joel | 32 | Son | Clerk | Germany |
| 69 | Mary Dempsey THIS PERSON | 76 | Head | — | Ireland |
| 70 | Rita Dempsey | 16 | Daughter | — | New York |
| 71 | Mary Cox | 45 | Daughter | Manager | Connecticut |
| 72 | Sarah Boyle | 36 | Daughter | Stenographer | Connecticut |
| 73 | Clyde Boyle | 36 | Son-in-law | Salesman | New York |
| 74 | John Peacock | 27 | Head | Chauffeur | Canada Eng |
| 75 | Emma Peacock | 34 | Wife-H | — | Ireland |
| 76 | John Peacock | 1 | Son | — | New York |
| 77 | Gilbert Casals | 34 | Head | Clerical | Porto Rico |
| 78 | Josephine Casals | 32 | Wife-H | — | Porto Rico |
| 79 | Alice Casals | 6 | Daughter | — | New York |
| 80 | Rose Casals | 5 | Daughter | — | New York |
| 81 | Carmen Casals | 3 | Daughter | — | New York |
| 82 | Rose Rosner | 64 | Head-H | — | New York |
| 83 | Shirley Rosner | 28 | Daughter | Teacher | Illinois |
| 84 | Adele Rosner | 24 | Daughter | Teacher | New York |
| 85 | Ramona Alvarez | 54 | Head-H | — | Porto Rico |
| 86 | Jenaro Alvarez | 33 | Son | — | Porto Rico |
| 87 | Aracelis Alvarez | 13 | Daughter | — | Porto Rico |
| 88 | John Alvarez | 24 | Son | Cleanable | Porto Rico |
| 89 | Lola Alvarez | 22 | Daughter-in-law | — | Porto Rico |
| 90 | John Jr. Alvarez | 2 | Grandson | — | New York |
| 91 | Amalia Almeda | 30 | Daughter | — | Porto Rico |
| 92 | Jessie Manfro | 55 | Head-H | Janitor | Illinois |
| 93 | Sendel Rubin | 50 | Head | Part Owner | Russia |
| 94 | Ray Rubin | 49 | Wife-H | — | Russia |
| 95 | Sadie Rubin | 22 | Daughter | Stenographer | New York |
| 96 | Sol Rubin | 19 | Son | — | New York |
| 97 | Lillian Rubin | 16 | Daughter | — | New York |
| 98 | Israel Kaner | 48 | Head | Presser | Ukrania |
| 99 | Fannie Kaner | 46 | Wife-H | — | Ukrania |
| 100 | Ray Kaner | 25 | Daughter | — | Russia |
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)