WD
William Dempsey — 1940 US Census Record
Linked across censuses1940 United States Federal Census · District-Of-Columbia-County, District of Columbia
Our Model Tree links this William Dempsey across the 1930 and 1940 US Censuses in District-Of-Columbia-County, District of Columbia (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 6-person household.
Age 12
b. ~1928
Male
Son
Born: Virginia
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | District-Of-Columbia-County, District of Columbia |
| Surname | Dempsey |
| Given Name | William E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Virginia |
| 1935 Residence (City) | Washington City |
| 1935 Residence (County) | District Of Columbia |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same Place |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
| Township / Ward | Washington City |
| Est. Birth Year | ~1928 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Howard Dempsey | Son | — | 14 | ~1926 |
| Eunice Dempsey | Spouse | — | 36 | ~1904 |
| Marie Dempsey | Daughter | — | 19 | ~1921 |
| Silas Dempsey | Head | — | 41 | ~1899 |
| William Hughes | Other | — | 32 | ~1908 |
| William Dempsey | Son | — | 12 | ~1928 |
Census Appearances
1930
None, District …
Son, age 2
None, District of Columbia · implied b. ~1928 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dempsey |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Virginia |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1940
District-Of-Columbia-County, District …
Son, age 12
District-Of-Columbia-County, District of Columbia · implied b. ~1928 — 6 household members
| Surname | Dempsey |
| Given Name | William E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Virginia |
| 1935 Residence (City) | Washington City |
| 1935 Residence (County) | District Of Columbia |
| Highest Grade | No 6 |
| 1935 Residence | Same Place |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
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.
Show:
This person
Anchor record
William Dempsey
Son · 1940 · age 12 · b. ~1928 · District of Columbia
★ You are viewing this record
Sibling
Marie Dempsey
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Howard Dempsey
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — District-Of-Columbia-County, District of Columbia
Open full size
1940 US Federal Census — District-Of-Columbia-County, District of Columbia
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00564-00931)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | George D. Cott | 19 | Son | — | District of Columbia |
| 42 | Barbara J. Cott | 14 | Daughter | — | District of Columbia |
| 43 | Michael Fillah | 35 | Head | Tinner | District of Columbia |
| 44 | Angela Fillah | 29 | Wife | Nurse'S Aid | Maryland |
| 45 | Estelle Paddy | 24 | Roomer | Waitress | District of Columbia |
| 46 | Hilda M. Crawford | 75 | Head | — | Sweden |
| 47 | George E. Crawford | 41 | Son | Real Estate Broker | Kansas |
| 48 | Charles H. Murphy | 71 | Head | — | New York |
| 49 | Helen D. Murphy | 59 | Wife | — | New Jersey |
| 50 | George E. Murphy | 30 | Son | Night Watchman | District of Columbia |
| 51 | Thomas B. Murphy | 25 | Son | Truck Driver | District of Columbia |
| 52 | Albert G. Runnell | 53 | Head | Conductor | Maryland |
| 53 | Helen Runnell | 49 | Wife | — | Maryland |
| 54 | Philip Runnell | 24 | Son | Carpenter | District of Columbia |
| 55 | Joseph Runnell | 22 | Son | Truck Driver | District of Columbia |
| 56 | Harold Runnell | 17 | Son | New Worker | Virginia |
| 57 | Raymond Runnell | 6 | Son | — | District of Columbia |
| 58 | William Thompson | 79 | Father-in-law | — | Maryland |
| 59 | Mary Thompson | 73 | Mother-in-law | — | Maryland |
| 60 | Lillian G. Payne | 54 | Head | — | Virginia |
| 61 | Millard Payne | 32 | Son | Office Clerk | Virginia |
| 62 | Edmund D. Bredaking | 48 | Son-in-law | Engineer | West Virginia |
| 63 | Georgia Bredaking | 39 | Daughter | Office Clerk | Virginia |
| 64 | Olivia E. Bredaking | 13 | Grand-daughter | — | District of Columbia |
| 65 | John James Hosey | 39 | Son-in-law | Chief Storekeeper | England |
| 66 | Paul Freehauf | 40 | Head | Retailer | Maryland |
| 67 | Dorothy Freehauf | 38 | Wife | Salesgirl | District of Columbia |
| 68 | Paula Freehauf | 4 | Daughter | — | District of Columbia |
| 69 | Robert Freehauf | 2 | Son | — | District of Columbia |
| 70 | Dorothy Caldwell | 19 | Daughter | New Worker | District of Columbia |
| 71 | Silas H. Dempsey | 41 | Head | Motorman | Virginia |
| 72 | Eunice H. Dempsey | 36 | Wife | — | Virginia |
| 73 | Marie E. Dempsey | 19 | Daughter | — | Virginia |
| 74 | Howard C. Dempsey | 14 | Son | — | Virginia |
| 75 | William E. Dempsey THIS PERSON | 12 | Son | — | Virginia |
| 76 | William L. Hughes | 32 | Brother-in-law | Cab Driver | Virginia |
| 77 | Charles F. Mccoy | 53 | Head | Plumber | Pennsylvania |
| 78 | Hilda L. Mccoy | 37 | Wife | Bookkeeper | Pennsylvania |
| 79 | Claire K. Hunter | 69 | Mother-in-law | — | Pennsylvania |
| 80 | Wendelin C. Weber | 51 | Head | Assistant Purchasing Officer | New York |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)