WD
William Dennis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Louis-City-County, Missouri
Our Model Tree links this William Dennis across the 1930 and 1940 US Censuses in St.-Louis-City-County, Missouri (XGBoost, ~Confirmed) — first a head (b.~1915), then head of a 6-person household.
Age 25
b. ~1915
Male
Head
Born: Missouri
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-City-County, Missouri |
| Surname | Dennis |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | St. Louis |
| 1935 Residence (County) | St. Louis City |
| Additional Details | |
| Occupation | Laborer |
| Industry | St. Improvement |
| Class of Worker | GW |
| Hours Worked | 20 |
| Income (1939) | 638 |
| Highest Grade | No 7 |
| 1935 Residence | Missouri |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Occupation | Laborer |
| Township / Ward | St Louis |
| Est. Birth Year | ~1915 |
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 |
|---|---|---|---|---|
| Donald Woodruff | Daughter | — | 7 | ~1933 |
| William Dennis | Son | — | 2 | ~1938 |
| Patrick Donnelly | Other | — | 40 | ~1900 |
| William Dennis | Head | — | 25 | ~1915 |
| Mildred Dennis | Spouse | — | 32 | ~1908 |
| Robert Rorie | Son | — | 25 | ~1915 |
Census Appearances
1930
St Louis, …
Son, age 14
St Louis, Missouri · implied b. ~1916 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dennis |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Can Read/Write | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
St.-Louis-City-County, Missouri
Head, age 25
St.-Louis-City-County, Missouri · implied b. ~1915 — 6 household members
| Surname | Dennis |
| Given Name | William |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | St. Louis |
| 1935 Residence (County) | St. Louis City |
| Occupation | Laborer |
| Industry | St. Improvement |
| Class of Worker | GW |
| Hours Worked | 20 |
| Income (1939) | 638 |
| Highest Grade | No 7 |
| 1935 Residence | Missouri |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 Dennis across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Dennis
Head · 1940 · age 25 · b. ~1915 · Missouri
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — St.-Louis-City-County, Missouri
Open full size
1940 US Federal Census — St.-Louis-City-County, Missouri
Page Contents
37 people indexed on this census page (nara:1940:m-t0627-02208-00393)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 2 | Katherine Stark | 51 | Head | — | Missouri |
| 3 | George Poston | 56 | Brother | Bill Passer | Missouri |
| 4 | Cecil Ellis | 39 | Lodger | Music Salesman | Missouri |
| 5 | Robert Oliver | 29 | Lodger | Utility Man | Arkansas |
| 6 | Rose Walton | 35 | Head | Seamstress | Missouri |
| 7 | Jack Walton | 12 | Son | — | Missouri |
| 8 | Ola Poston | 43 | Head | P. Machine Operator | Missouri |
| 9 | Charles Maloney | 57 | Head | Interior Decorator | Missouri |
| 10 | Charles Jr. Maloney | 18 | Son | New Worker | Missouri |
| 11 | Margaret Maloney | 20 | Daughter | — | Missouri |
| 12 | William Dennis THIS PERSON | 25 | Head | Laborer | Missouri |
| 13 | Mildred Dennis | 32 | Wife | — | Illinois |
| 14 | William Dennis | 2 | Son | — | Missouri |
| 15 | Patrick Donnelly | 40 | Lodger | Furniture Driver | Irish Free State |
| 16 | Donald Woodruff | 7 | Daughter | — | Missouri |
| 18 | Robert D. Rorie | 25 | Son | Mechanic | Missouri |
| 19 | Edward Jaeger | 36 | Head | Superintendent | Indiana |
| 20 | Mildred Jaeger | 33 | Wife | — | Missouri |
| 21 | Robert Jaeger | 11 | Son | — | Illinois |
| 22 | Kenneth Jaeger | 9 | Son | — | Illinois |
| 23 | Joseph Russell | 36 | Head | Bus Driver | Missouri |
| 24 | Marie Russell | 34 | Wife | — | Illinois |
| 25 | Joseph Russell | 15 | Son | — | Missouri |
| 26 | Susan Brown | 72 | Mother-in-law | — | Missouri |
| 27 | Harvey Kline | 19 | Son | New Worker | Illinois |
| 28 | Elva Woods | 19 | Lodger | Cashier | Missouri |
| 29 | Doris Hoffman | 10 | Daughter | — | Missouri |
| 30 | Lee Jr. Menges | 3 | Son | — | Missouri |
| 31 | Margaret Johnson | 38 | Maid | Maid | Missouri |
| 32 | Ivan Magnusson | 63 | Janitor | Janitor | Sweden |
| 33 | Dennis Goodwin | 8 | Son | — | Missouri |
| 35 | Margaret Cole | 56 | Head | Weaver | Illinois |
| 36 | Daniel Cole | 19 | Son | New Worker | Illinois |
| 37 | William Salyer | 39 | Head | Prop. Clerk | W. Virginia |
| 38 | Virginia Salyer | 38 | Wife | — | Texas |
| 39 | Billie Salyer | 14 | Daughter | — | Texas |
| 40 | Theodore Buente | 61 | Head | Truck Helper | Missouri |
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)