MD
Mary Dennis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jefferson-County, Kentucky
Our Model Tree links this Mary Dennis across the 1930 and 1940 US Censuses in Jefferson-County, Kentucky (XGBoost, ~Confirmed) — first a spouse (b.~1904), then head of a 6-person household.
Age 36
b. ~1904
Female
Spouse
Born: Kentucky
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Jefferson-County, Kentucky |
| Surname | Dennis |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville |
| 1935 Residence (County) | Jefferson |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | Camp Taylor |
| Est. Birth Year | ~1904 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Sylvia Dennis | Daughter | — | 6 | ~1934 |
| Clarence Dennis | Son | — | 15 | ~1925 |
| Clarence Dennis | Head | — | 35 | ~1905 |
| Mary Dennis | Spouse | — | 36 | ~1904 |
| Martha Dennis | Daughter | — | 9 | ~1931 |
| Donald Dennis | Son | — | 11 | ~1929 |
Census Appearances
1930
Jefferson, Kentucky
Other, age 26
Jefferson, Kentucky · implied b. ~1904 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dennis |
| Given Name | Mary E. |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Age at First Marriage | 21 |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Jefferson-County, Kentucky
Spouse, age 36
Jefferson-County, Kentucky · implied b. ~1904 — 6 household members
| Surname | Dennis |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Louisville |
| 1935 Residence (County) | Jefferson |
| Class of Worker | 0 |
| Highest Grade | H-4 |
| 1935 Residence | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
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 36 · b. ~1904 · Kentucky
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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 — Jefferson-County, Kentucky
Open full size
1940 US Federal Census — Jefferson-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01321-00043)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Bill Henry | 6 | Son | — | Kentucky |
| 2 | Paul M. Finley | 33 | Head | Printer | Kentucky |
| 3 | Thelma Finley | 37 | Wife | Proof Reader | Kentucky |
| 4 | Anna Finley | 64 | Mother | — | Kentucky |
| 5 | Clay L. Johnson | 37 | Head | Operator | Kentucky |
| 6 | Anna Johnson | 28 | Wife | — | Kentucky |
| 7 | Nora J. Johnson | 8 | Daughter | — | Kentucky |
| 8 | Louis P. Bohrman | 30 | Head | Driver | Kentucky |
| 9 | Joan Bohrman | 30 | Wife | — | Ohio |
| 10 | Gayle Bohrman | 7 | Daughter | — | Kentucky |
| 11 | Phillip Bohrman | 6 | Son | — | Kentucky |
| 12 | Clarence H. Dennis | 35 | Head | Chemist | Texas |
| 13 | Mary Dennis THIS PERSON | 36 | Wife | — | Kentucky |
| 14 | Clarence Jr. Dennis | 15 | Son | — | Kentucky |
| 15 | Donald D. Dennis | 11 | Son | — | Kentucky |
| 16 | Martha J. Dennis | 9 | Daughter | — | Kentucky |
| 17 | Sylvia L. Dennis | 6 | Daughter | — | Kentucky |
| 18 | Stanley B. Cundiff | 38 | Head | Substitute Postal Clerk | Kentucky |
| 19 | Viola Cundiff | 41 | Wife | — | Kentucky |
| 20 | John C. Schmidt | 54 | Head | Machinist | Kentucky |
| 21 | Louise Schmidt | 54 | Wife | — | Kentucky |
| 22 | John Vogel | 43 | Head | Asst Foreman | Kentucky |
| 23 | Rose Vogel | 44 | Wife | — | Kentucky |
| 24 | Carl Vogel | 24 | Son | Laborer | Kentucky |
| 25 | Rosetta Vogel | 21 | Daughter | Stenographer | Kentucky |
| 26 | Delphine Vogel | 12 | Daughter | — | Kentucky |
| 27 | C. G. Fowler | 58 | Head | Chiropractor | Kentucky |
| 28 | Marguerite Fowler | 49 | Wife | Business Director | Kentucky |
| 29 | Hattie Dravo | 73 | Mother-in-law | — | Kentucky |
| 30 | Marguerite Dravo | 15 | Niece | — | Kentucky |
| 31 | J. B. Hellems | 41 | Head | Hair Dresser | West Virginia |
| 32 | Dorothy Hellems | 29 | Wife | Instructress | Kentucky |
| 33 | Larry Hellems | 3 | Son | 0 | Kentucky |
| 34 | Ann Bindeman | 52 | Housekeeper | Housekeeper | Kentucky |
| 35 | E. H. Grimes | 41 | Head | Salesman | Kentucky |
| 36 | Nell C. Grimes | 33 | Wife | — | Tennessee |
| 37 | Emory Jr. Grimes | 8 | Son | — | Kentucky |
| 38 | Janelle Grimes | 2 | Daughter | 0 | Kentucky |
| 39 | Jack Fisher | 41 | Head | Beautician | Kentucky |
| 40 | Violet Fisher | 37 | Wife | — | Kentucky |
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)