MD
Mary Dempsey — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Bronx, New York
Our Model Tree links this Mary Dempsey across the 1900, 1910, 1920 and 1930 US Censuses in Bronx, New York (XGBoost, ~Confirmed) — first a head (b.~1862), then head of a 2-person household.
Age 68
b. ~1862
Female
Head
Born: Ireland
Widowed
1930 Census Record Details
| Census Year | 1930 |
| Location | Bronx, New York |
| Surname | Dempsey |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 68 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1880 |
| Age at First Marriage | 20 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Can Read/Write | Yes |
| Mother Tongue | Irish |
| Home Owned/Rented | R |
| Home Value / Rent | 35 |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Township / Ward | New York City Bronx Borough |
| Est. Birth Year | ~1862 |
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.
2 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Dempsey | Head | — | 68 | ~1862 |
| Dorothy Dempsey | Daughter | — | 21 | ~1909 |
Census Appearances
1900
Kings, New …
Spouse, age 41
Kings, New York · implied b. ~1859 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dempsey |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Ireland |
| Birth Month | Nov |
| Birth Year | 1859 |
| Year of Immigration | 1881 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1910
Kings, New …
Spouse, age 50
Kings, New York · implied b. ~1860 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dempsey |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Ireland |
| Years Married | 20 |
| Year of Immigration | 1880 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Dressmaker |
| Industry | House |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1920
Kings, New …
Head, age 58
Kings, New York · implied b. ~1862 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dempsey |
| Given Name | Margaret |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 58 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Year of Immigration | 1881 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Housekeeper |
| Industry | Rooms |
| Class of Worker | O.A. |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1930
Bronx, New …
Head, age 68
Bronx, New York · implied b. ~1862 — 2 household members
| Surname | Dempsey |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 68 |
| Marital Status | Widowed |
| Birthplace | Ireland |
| Naturalization Status | Naturalized |
| Year of Immigration | 1880 |
| Age at First Marriage | 20 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Can Read/Write | Yes |
| Mother Tongue | Irish |
| Home Owned/Rented | R |
| Home Value / Rent | 35 |
| 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 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Dempsey
Head · 1930 · age 68 · b. ~1862 · 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 — Bronx, New York
Open full size
1930 US Federal Census — Bronx, New York
Page Contents
50 people indexed on this census page (ia:1930:newyorkcensus00reel1464:0865)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Earl Irvine | 35 | Head | Inspector | Scotland |
| 2 | Janet Irvine | 32 | Wife | — | Scotland |
| 3 | John Corner | 60 | Head | — | England |
| 4 | Sarah Corner | 58 | Wife | Saleslady | England |
| 5 | Florence Corner | 31 | Daughter | Clerk | New York |
| 6 | William Corner | 23 | Son | Clerk | New York |
| 7 | William Schoipp | 35 | Head | Salesman | New York |
| 8 | Nellie Schoipp | 34 | Wife | — | New York |
| 9 | Edward Schoipp | 9 | Son | — | New York |
| 10 | Eleanor Schoipp | 7 | Daughter | — | New York |
| 11 | Cesare Gadarau | 38 | Head | Barber | Italy |
| 12 | Rose Gadarau | 33 | Wife | — | Italy |
| 13 | Joseph Gadarau | 16 | Son | Clerk | New York |
| 14 | Nicholas Gadarau | 14 | Son | — | New York |
| 15 | Matilda Gadarau | 11 | Daughter | — | New York |
| 16 | John Gadarau | 8 | Son | — | New York |
| 17 | Salvatore Gadarau | 6 | Son | — | New York |
| 18 | Anthony Gadarau | 4 | Son | — | New York |
| 19 | Frank Gadarau | 2 | Son | — | New York |
| 20 | Theresa Gadarau | 0 | Daughter | — | New York |
| 21 | James Mahoney | 37 | Head | Clerk | New York |
| 22 | Catherine Mahoney | 32 | Wife | — | New York |
| 23 | Peter Contessa | 32 | Head | Clerk | Italy |
| 24 | Mary Contessa | 28 | Wife | — | Scotland |
| 25 | Peter Contessa | 5 | Son | — | New York |
| 26 | Catherine Contessa | 3 | Daughter | — | New York |
| 27 | Edgar Contessa | 1 | Son | — | New York |
| 28 | Alfred Contessa | 0 | Son | — | New York |
| 29 | Catherine Contessa | 65 | Mother | — | Italy |
| 30 | Frank Hall | 35 | Head | Carpenter | Sweden |
| 31 | Sarah Hall | 32 | Wife | — | New York |
| 32 | John Miller | 32 | Head | Chauffeur | New York |
| 33 | Mary Miller | 27 | Wife | — | New York |
| 34 | Alexander Regalski | 46 | Head | Machinist | Poland |
| 35 | Stella Regalski | 32 | Wife | — | New York |
| 36 | Julia Regalski | 14 | Daughter | — | New York |
| 37 | Anna Regalski | 13 | Daughter | — | New York |
| 38 | James Smith | 60 | Head | — | New York |
| 39 | Chauncey Smith | 27 | Son | — | New York |
| 40 | Mary Dempsey THIS PERSON | 68 | Head | — | Ireland |
| 41 | Dorothy Dempsey | 21 | Daughter | Clerk | Massachusetts |
| 42 | Charles Nicholson | 41 | Head | Salesman | New York |
| 43 | Alice Nicholson | 44 | Wife | — | New York |
| 44 | Alice Nicholson | 12 | Daughter | — | New York |
| 45 | James Nicholson | 11 | Son | — | New York |
| 46 | Raymond Nicholson | 10 | Son | — | New York |
| 47 | Robert Auld | 41 | Head | Clerk | Scotland |
| 48 | Helen Auld | 37 | Wife | — | New York |
| 49 | Augusta Auld | 15 | Daughter | — | New York |
| 50 | Elizabeth Auld | 11 | Daughter | — | New York |
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)