MD
Mary Dennis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · St.-Louis-City-County, Missouri
Our Model Tree links this Mary Dennis across the 1930 and 1940 US Censuses in St.-Louis-City-County, Missouri (XGBoost, ~Confirmed) — first a spouse (b.~1889), then head of a 8-person household.
Age 51
b. ~1889
Female
Spouse
Born: Mississippi
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | St.-Louis-City-County, Missouri |
| Surname | Dennis |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Mississippi |
| 1935 Residence (City) | St. Louis City |
| 1935 Residence (County) | St. Louis City |
| Additional Details | |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same Place |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
| Township / Ward | St Louis City |
| Est. Birth Year | ~1889 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Edward Dennis | Son | — | 3 | ~1937 |
| Oliver Dennis | Son | — | 18 | ~1922 |
| Major Dennis | Son | — | 25 | ~1915 |
| Ruth Dennis | Daughter | — | 10 | ~1930 |
| Major Dennis | Head | — | 51 | ~1889 |
| Willie Dennis | Son | — | 6 | ~1934 |
| Robert Dennis | Son | — | 13 | ~1927 |
| Mary Dennis | Spouse | — | 51 | ~1889 |
Census Appearances
1930
St Louis, …
Other, age 40
St Louis, Missouri · implied b. ~1890 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dennis |
| Given Name | Mary |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | Black |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Mississippi |
| Age at First Marriage | 17 |
| Father's Birthplace | Alabama |
| Mother's Birthplace | North Carolina |
| Can Read/Write | Yes |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
1940
St.-Louis-City-County, Missouri
Spouse, age 51
St.-Louis-City-County, Missouri · implied b. ~1889 — 8 household members
| Surname | Dennis |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 51 |
| Marital Status | Married |
| Birthplace | Mississippi |
| 1935 Residence (City) | St. Louis City |
| 1935 Residence (County) | St. Louis City |
| Hours Worked | 0 |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same Place |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
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 Mary Dennis across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Dennis
Spouse · 1940 · age 51 · b. ~1889 · 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
40 people indexed on this census page (nara:1940:m-t0627-02187-00697)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Maxine Jones | 20 | Wife | — | Arkansas |
| 2 | Ida Houston | 60 | Head | Laundress | Missouri |
| 3 | George Easter | 53 | Head | Moulder Helper | Arkansas |
| 4 | Ida Easter | 53 | Wife | — | So Carolina |
| 5 | Oscar Easter | 29 | Son | Iron Pourer | Mississippi |
| 6 | Don Richey | 34 | Head | Laborer | Arkansas |
| 7 | La Verne Richey | 18 | Wife | — | Missouri |
| 8 | Edward Richey | 4 | Son | — | Missouri |
| 9 | Estelle Mckinnon | 53 | Mother | Laundress | Mississippi |
| 10 | Rubbin Richey | 20 | Nephew | New Worker | Arkansas |
| 11 | Julia Smith | 35 | Head | Maid | Mississippi |
| 12 | Ida Collins | 33 | Roomer | Maid | Mississippi |
| 13 | Lemuel Foster | 26 | Roomer | Laborer | Mississippi |
| 14 | Frank Lloyd | 40 | Head | Chauffeur | Mississippi |
| 15 | Viola Lloyd | 39 | Wife | Paper Bag Maker | Mississippi |
| 16 | Mable Lloyd | 20 | Daughter | Paper Bag Maker | Mississippi |
| 17 | Thelma Lloyd | 18 | Daughter | — | Mississippi |
| 18 | Essie V. Lloyd | 13 | Daughter | — | Mississippi |
| 19 | Riley Smith | 23 | Bro-in-law | Laborer | Mississippi |
| 20 | Henry Snowden | 47 | Head | Messenger | Mississippi |
| 21 | Elzora Snowden | 39 | Wife | — | Missouri |
| 22 | Alex Washington | 55 | Head | Trucking | Alabama |
| 23 | Lucille Washington | 52 | Wife | — | Alabama |
| 24 | Willie Reese | 37 | Bro-in-law | Laborer | Alabama |
| 25 | Anna Reese | 36 | Sis-in-law | — | Alabama |
| 26 | Charles Bryant | 39 | Head | Laborer | Alabama |
| 27 | Lula Bryant | 39 | Wife | — | Louisiana |
| 28 | Bobby Jean Bryant | 2 | Daughter | — | Missouri |
| 29 | Charles Jr Bryant | 1 | Son | — | Missouri |
| 30 | Frances Long | 18 | Step-Daughter | Factory Helper | Illinois |
| 31 | Major Dennis | 51 | Head | Mover & Hauler | So Carolina |
| 32 | Mary Dennis THIS PERSON | 51 | Wife | — | Mississippi |
| 33 | Major Jr Dennis | 25 | Son | Helper On Truck | Mississippi |
| 34 | Oliver Dennis | 18 | Son | Helper On Truck | Missouri |
| 35 | Robert Dennis | 13 | Son | — | Missouri |
| 36 | Ruth Dennis | 10 | Daughter | — | Missouri |
| 37 | Willie Dennis | 6 | Son | — | Missouri |
| 38 | Edward Dennis | 3 | Son | — | Missouri |
| 39 | — | None | — | — | — |
| 40 | Charles H White | 56 | Head | Grader | Tennessee |
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)