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William Dempsey — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-County, Maryland
Our Model Tree links this William Dempsey across the 1930 and 1940 US Censuses in Baltimore-County, Maryland (XGBoost, ~Confirmed) — first a son (b.~1924), then head of a 5-person household.
Age 16
b. ~1924
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-County, Maryland |
| Surname | Dempsey |
| Given Name | William H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | # District 11 |
| 1935 Residence (County) | Baltimore |
| Additional Details | |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 185 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | District 11 |
| Est. Birth Year | ~1924 |
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 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| William Dempsey | Son | — | 16 | ~1924 |
| Harry Dempsey | Son | — | 15 | ~1925 |
| James Dempsey | Son | — | 14 | ~1926 |
| Harry Dempsey | Head | — | 40 | ~1900 |
| Emily Dempsey | Spouse | — | 41 | ~1899 |
Census Appearances
1930
Baltimore, Maryland
Son, age 6
Baltimore, Maryland · implied b. ~1924 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dempsey |
| Given Name | William H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | No |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-County, Maryland
Son, age 16
Baltimore-County, Maryland · implied b. ~1924 — 5 household members
| Surname | Dempsey |
| Given Name | William H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | # District 11 |
| 1935 Residence (County) | Baltimore |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 185 |
| Highest Grade | No 7 |
| 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 16 · b. ~1924 · Maryland
★ You are viewing this record
Sibling
James Dempsey
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harry Dempsey
Sibling · 1940 · age 15
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-County, Maryland
Open full size
1940 US Federal Census — Baltimore-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01505-00675)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Wife Evelyn | None | F | — | — |
| 42 | Son Lavellia | None | M | — | — |
| 43 | Daughter Helen E | None | F | — | — |
| 44 | Dempsey Jackson | 44 | Lodger | Wood Cutter | Maryland |
| 45 | Francis Dilworth | 52 | Head | Poultryman | Maryland |
| 46 | Grace S Dilworth | 47 | Wife | — | Maryland |
| 47 | Marian E Dilworth | 20 | Daughter | Stenographer | Maryland |
| 48 | Albert F Burton | 21 | Head | Laborer | Maryland |
| 49 | Marie S Burton | 20 | Wife | — | Maryland |
| 50 | Albert F Jr Burton | 2 | Son | — | Maryland |
| 51 | Norman N Burton | 1 | Son | — | Maryland |
| 52 | Ranta Kustas | 45 | Head | Houseman | Finland |
| 53 | Olga Kustas | 49 | Wife | Cook | Finland |
| 54 | Wilson T Huff | 24 | Head | Laborer | Maryland |
| 55 | Virginia S Huff | 22 | Wife | — | Maryland |
| 56 | Francis Locky | 43 | Head | Farmer | Germany |
| 57 | Minnie Locky | 45 | Wife | — | Germany |
| 58 | Ida M Locky | 18 | Daughter | Maid | Germany |
| 59 | Theodore E Locky | 15 | Son | Laborer | Maryland |
| 60 | Richard W Locky | 13 | Son | — | Maryland |
| 61 | Pauline Klumpp | 81 | Aunt | — | Germany |
| 62 | Norman R Norton | 24 | Head | Laborer | Maryland |
| 63 | Hilda G Norton | 19 | Wife | — | Maryland |
| 64 | Harry F Dempsey | 40 | Head | Chaufeur | Maryland |
| 65 | Emily D Dempsey | 41 | Wife | — | Maryland |
| 66 | William H Dempsey THIS PERSON | 16 | Son | — | Maryland |
| 67 | Harry F Dempsey | 15 | Son | — | Maryland |
| 68 | James B Dempsey | 14 | Son | — | Maryland |
| 69 | Lewis A Fox | 40 | Head | Butler | Vermont |
| 70 | Elsie Fox | 37 | Wife | Cook | Maryland |
| 71 | Marian Fox | 7 | Daughter | — | California |
| 72 | William P Townsley | 18 | Head | Laborer | Maryland |
| 73 | George W Stroup | 75 | Partner | Night Watchman | West Virginia |
| 74 | Lelilord Gerlock | 21 | Partner | Laborer | Maryland |
| 75 | Lloyd G Dorsey | 45 | Head | Secretary | Maryland |
| 76 | Elizabeth G Dorsey | 45 | Wife | — | Maryland |
| 77 | Joshua Lenton | 77 | Father | — | Maryland |
| 78 | Jackson Thomas | 22 | Lodger | Butler | Virginia |
| 79 | William D Hoffman | 63 | Head | Farmer | Maryland |
| 80 | Annie L Hoffman | 56 | Wife | — | Maryland |
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)