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William Dempsey — 1930 US Census Record
Linked across censuses1930 United States Federal Census · New Haven, Connecticut
Our Model Tree links this William Dempsey across the 1930 and 1940 US Censuses in New Haven, Connecticut (XGBoost, ~Confirmed) — first a head (b.~1892), then head of a 5-person household.
Age 38
b. ~1892
Male
Head
Born: Ireland
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | New Haven, Connecticut |
| Surname | Dempsey |
| Given Name | William J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | First papers filed |
| Year of Immigration | 1916 |
| Age at First Marriage | 27 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Additional Details | |
| Occupation | Laborer |
| Industry | Laundry |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 30.00 |
| Radio Set | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
| Occupation | Laborer |
| Township / Ward | New Haven City |
| Est. Birth Year | ~1892 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| James Dempsey | Son | — | 9 | ~1921 |
| Annie Dempsey | Daughter | — | 6 | ~1924 |
| Mary Dempsey | Spouse | — | 38 | ~1892 |
| Mary Dempsey | Daughter | — | ~1930 | |
| William Dempsey | Head | — | 38 | ~1892 |
Census Appearances
1930
New Haven, …
Head, age 38
New Haven, Connecticut · implied b. ~1892 — 5 household members
| Surname | Dempsey |
| Given Name | William J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Ireland |
| Naturalization Status | First papers filed |
| Year of Immigration | 1916 |
| Age at First Marriage | 27 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Laborer |
| Industry | Laundry |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 30.00 |
| Radio Set | R |
| Birth Country | Ireland |
| Birthplace (normalized) | ireland |
1940
Fairfield-County, Connecticut
Other, age 48
Fairfield-County, Connecticut · implied b. ~1892 — 40 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dempsey |
| Given Name | William |
| Relationship to Head | Inmate |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Single |
| Birthplace | Ireland |
| 1935 Residence (City) | Bridgeport City |
| 1935 Residence (County) | Fairfield |
| Naturalization Status | Naturalized |
| Occupation | Inst |
| Highest Grade | No |
| 1935 Residence | Same place |
| 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 William Dempsey across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
William Dempsey
Head · 1930 · age 38 · b. ~1892 · Connecticut
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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 Haven, Connecticut
Open full size
1930 US Federal Census — New Haven, Connecticut
Page Contents
47 people indexed on this census page (ia:1930:15thcensus277unit:0040)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Ezra G. Bixley | 57 | Head | Draftsman | Connecticut |
| 52 | Belle G. Bixley | 43 | Wife | — | Connecticut |
| 53 | Lawrence G. Bixley | 23 | Son | — | Connecticut |
| 54 | Clifford S. Charles | 41 | Head | Foreman | Maryland |
| 55 | Lottie B. Charles | 45 | Wife | — | Connecticut |
| 56 | Clifford S. Jr. Charles | 12 | Son | — | Connecticut |
| 57 | Alexander Brown | 50 | Head | Rifler | Connecticut |
| 58 | Elizabeth Brown | 51 | Wife | — | Connecticut |
| 59 | Robert H. Brown | 30 | Son | Musician | Connecticut |
| 60 | Annie S. Talbert | 76 | Mother | — | Connecticut |
| 61 | Thomas Melia | 53 | Head | Office Clerk | Connecticut |
| 62 | Tessa A. Melia | 51 | Wife | — | Connecticut |
| 63 | Warren P. Randolph | 34 | Head | Fireman | Massachusetts |
| 64 | Sara E. Randolph | 33 | Wife | — | Connecticut |
| 65 | Raymond W. Randolph | 11 | Son | — | Connecticut |
| 66 | Harold W. Randolph | 10 | Son | — | Connecticut |
| 67 | Richard F. Randolph | 9 | Son | — | Connecticut |
| 68 | Charles W. Randolph | 8 | Son | — | Connecticut |
| 69 | Edward F. Randolph | 7 | Son | — | Connecticut |
| 70 | John H. Randolph | 4 | Son | — | Connecticut |
| 71 | Calvin W. Randolph | 2 | Son | — | Connecticut |
| 72 | Alfred G. Randolph | 1 | Son | — | Connecticut |
| 74 | Isaac H. Wood | 55 | Head | Clerical Work | New York |
| 75 | Margaret Wood | 49 | Wife | — | New York |
| 76 | Walter A. Watson | 49 | Head | — | Michigan |
| 77 | Claude Watson | 20 | Son | Stock Clerk | Connecticut |
| 78 | Vera Watson | 18 | Daughter | Mechanic | Connecticut |
| 79 | Mildred Watson | 12 | Daughter | — | Connecticut |
| 80 | Lila Hansen | 21 | Daughter | Laundress | Connecticut |
| 81 | Daniel D. Mailhoux | 52 | Head | Enameler | Canada |
| 82 | Madeline Mailhoux | 45 | Wife | — | Connecticut |
| 83 | Irene F. Arnold | 3 | Granddaughter | — | Connecticut |
| 84 | William J. Dempsey THIS PERSON | 38 | Head | Laborer | Ireland |
| 85 | Mary Dempsey | 38 | Wife | — | Ireland |
| 86 | James J. Jr. Dempsey | 9 | Son | — | Connecticut |
| 87 | Annie E. Dempsey | 6 | Daughter | — | Connecticut |
| 88 | Mary Dempsey | 0 | Daughter | — | Connecticut |
| 90 | Israel Baron | 47 | Head | Grocer | Russia |
| 91 | Libby Baron | 47 | Wife | Groceress | Russia |
| 92 | Benjamin Baron | 18 | Son | — | New Jersey |
| 93 | Schonth Baron | 14 | Daughter | — | Connecticut |
| 94 | Aaron D. Baron | 67 | Father-in-law | — | Russia |
| 95 | Esther A. Baron | 65 | Mother-in-law | — | Russia |
| 96 | Emilio Codw | 51 | Head | Laborer | Italy |
| 97 | Beatrice Codw | 39 | Wife | — | Italy |
| 98 | Libero Codw | 13 | Son | — | Connecticut |
| 99 | Mary Codw | 11 | Daughter | — | Connecticut |
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)