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William Dempsey — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this William Dempsey across the 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 6-person household.
Age 12
b. ~1928
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Dempsey |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Hours Worked | 0 |
| Highest Grade | 5 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore 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 |
|---|---|---|---|---|
| Bernard Dempsey | Son | — | 14 | ~1926 |
| Joseph Mihm | Other | — | 23 | ~1917 |
| Bernard Dempsey | Head | — | 51 | ~1889 |
| William Dempsey | Son | — | 12 | ~1928 |
| Elizabeth Dempsey | Daughter | — | 10 | ~1930 |
| Elizabeth Dempsey | Spouse | — | 42 | ~1898 |
Census Appearances
1930
Baltimore, Maryland
Son, age 2
Baltimore, Maryland · implied b. ~1928 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dempsey |
| Given Name | William Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Son, age 12
Baltimore-City-County, Maryland · implied b. ~1928 — 6 household members
| Surname | Dempsey |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Hours Worked | 0 |
| Highest Grade | 5 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 · Maryland
★ You are viewing this record
Sibling
Bernard Dempsey
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Dempsey
Sibling · 1940 · age 10
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 — Baltimore-City-County, Maryland
Open full size
1940 US Federal Census — Baltimore-City-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01517-00235)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Daniel Kerrigan | 46 | Head | Laborer | Irish Free State |
| 2 | Margaret Kerrigan | 39 | Wife | — | Irish Free State |
| 3 | Patrick Wallace | 38 | Lodger | Laborer | Irish Free State |
| 4 | John King | 31 | Head | Driver | Maryland |
| 5 | Ethel King | 24 | Wife | Sorter | Maryland |
| 6 | John Jr. King | 2 | Son | — | Maryland |
| 7 | Bertha Gohl | 62 | Head | — | Pennsylvania |
| 8 | Joseph Kaufman | 33 | Lodger | Warehouseman | Pennsylvania |
| 9 | Ruth Kaufman | 30 | Lodger | — | Virginia |
| 10 | Robert Moore | 35 | Lodger | Carpenter | Virginia |
| 11 | William Perkins | 26 | Nephew | Office | Maryland |
| 12 | George Perkins | 24 | Nephew | Office | Virginia |
| 13 | Rosa Blaney | 60 | Head | — | Maryland |
| 14 | Mary Schuster | 57 | Head | — | England |
| 15 | Elaine Schuster | 14 | Daughter | Assistant Secretary | Maryland |
| 16 | Mary Schuster | 17 | Daughter | — | Maryland |
| 17 | Leo Schuster | 21 | Son | Special Delivery | Maryland |
| 18 | William Canton | 36 | Head | Credit Manager | Maryland |
| 19 | Dorothy Canton | 30 | Wife | — | Maryland |
| 20 | Dorothy A. Canton | 12 | Daughter | — | Maryland |
| 21 | William Jr. Canton | 10 | Son | — | Maryland |
| 22 | Joseph Bona | 60 | Head | Head Waiter | Italy |
| 23 | Julia Bona | 57 | Wife | — | Italy |
| 24 | Paul Bona | 24 | Son | Machinist | Maryland |
| 25 | Howard Lyons | 38 | Head | Embalmer | Maryland |
| 26 | Ida Lyons | 38 | Wife | Typist | Maryland |
| 27 | Thomas Bryant | 54 | Head | Carpenter | Hungary |
| 28 | Winifred Bryant | 48 | Wife | — | Dakota |
| 29 | Fred Kelley | 55 | Lodger | Weather Stripper | Iowa |
| 30 | Rose Ending | 55 | Head | Seamstress | Maryland |
| 31 | Alice Ending | 19 | Daughter | Waitress | Maryland |
| 32 | Mary Ending | 17 | Daughter | — | Maryland |
| 33 | William Ending | 10 | Son | — | Maryland |
| 34 | Bernard Dempsey | 51 | Head | Guard | Maryland |
| 35 | Elizabeth Dempsey | 42 | Wife | — | Maryland |
| 36 | Bernard Jr. Dempsey | 14 | Son | — | Maryland |
| 37 | William Dempsey THIS PERSON | 12 | Son | — | Maryland |
| 38 | Elizabeth Dempsey | 10 | Daughter | — | Maryland |
| 39 | Joseph Mihm | 23 | Lodger | Clerk | Maryland |
| 40 | Margaret Keeney | 53 | Head | — | Free State |
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)