MD
Mary Dennis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Clinton-County, Missouri
Our Model Tree links this Mary Dennis across the 1930 and 1940 US Censuses in Clinton-County, Missouri (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 8-person household.
Age 14
b. ~1926
Female
Daughter
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Clinton-County, Missouri |
| Surname | Dennis |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Clinton |
| 1935 Residence (County) | Clinton |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Missouri |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | Plattsburg |
| Est. Birth Year | ~1926 |
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 |
|---|---|---|---|---|
| Wallace Dennis | Son | — | 12 | ~1928 |
| Helen Grant | Other | — | 16 | ~1924 |
| Wilbur Dennis | Son | — | 9 | ~1931 |
| Kenneth Dennis | Son | — | 3 | ~1937 |
| Mary Dennis | Daughter | — | 14 | ~1926 |
| Leland Dennis | Son | — | 7 | ~1933 |
| Jennie Dennis | Spouse | — | 33 | ~1907 |
| Earl Dennis | Head | — | 41 | ~1899 |
Census Appearances
1930
Clinton, Missouri
Daughter, age 4
Clinton, Missouri · implied b. ~1926 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Dennis |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Tennessee |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
Clinton-County, Missouri
Daughter, age 14
Clinton-County, Missouri · implied b. ~1926 — 8 household members
| Surname | Dennis |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Clinton |
| 1935 Residence (County) | Clinton |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 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 Mary Dennis across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Dennis
Daughter · 1940 · age 14 · b. ~1926 · Missouri
★ You are viewing this record
Sibling
Kenneth Dennis
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wilbur Dennis
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wallace Dennis
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leland Dennis
Sibling · 1940 · age 7
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 — Clinton-County, Missouri
Open full size
1940 US Federal Census — Clinton-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02098-00072)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | H. Hazel | 47 | Wife | — | Missouri |
| 42 | Jean Hazel | 21 | Daughter | Stenographer | Missouri |
| 43 | E. Robert | 15 | Son | — | Missouri |
| 44 | William A. Rogers | 55 | Head | Superintendent | Missouri |
| 45 | Beryl Rogers | 47 | Wife | — | Missouri |
| 46 | Hugh James Rogers | 26 | Son | Electrician & Lineman | Missouri |
| 47 | J. Sidney Thomas | 49 | Head | Salesman | Nebraska |
| 48 | Edith G. Thomas | 36 | Wife | — | Missouri |
| 49 | Charlotte A. Thomas | 7 | Daughter | — | Missouri |
| 50 | Harry H. Oliver | 66 | Lodger | — | Missouri |
| 51 | John H. Foster | 38 | Head | Laborer | Missouri |
| 52 | Lula Foster | 31 | Wife | — | Missouri |
| 53 | Martha Basinger | 52 | Head | Cook | Missouri |
| 54 | Jasper Basinger | 24 | Son | Laborer | Missouri |
| 55 | Jasper L. Monroe | 25 | Head | — | Missouri |
| 56 | John S. May | 37 | Head | Laborer | Missouri |
| 57 | Ella A. May | 36 | Wife | Teacher | Missouri |
| 58 | Hazel M. May | 19 | Daughter | Maid | Missouri |
| 59 | John E. May | 11 | Son | — | Missouri |
| 60 | Margaret B. Kirley | 3 | Daughter | — | Missouri |
| 61 | Duty Hunter | 77 | Head | — | Missouri |
| 62 | Jannie Hunter | 37 | Son | Laborer | Missouri |
| 63 | Edward Robinson | 75 | Head | Contractor | Texas |
| 64 | Emma Robinson | 74 | Wife | — | Missouri |
| 65 | Richard Gelan | 72 | Head | Laborer | Missouri |
| 66 | James D. Leleader | 76 | Head | Barber | Missouri |
| 67 | Reece Jones | 52 | Head | — | Missouri |
| 68 | Ruby Jones | 25 | Wife | Switch Board Operator | Missouri |
| 69 | Earl P. Dennis | 41 | Head | Laborer | Missouri |
| 70 | Jennie D. Dennis | 33 | Wife | — | Missouri |
| 71 | Mary E. Dennis THIS PERSON | 14 | Daughter | — | Missouri |
| 72 | Wallace E. Dennis | 12 | Son | — | Missouri |
| 73 | Wilbur E. Dennis | 9 | Son | — | Missouri |
| 74 | Leland A. Dennis | 7 | Son | — | Missouri |
| 75 | Kenneth Lee Dennis | 3 | Son | — | Missouri |
| 76 | Helen Grant | 16 | Sister-in-law | — | Missouri |
| 77 | Maude D. Walker | 49 | Head | — | Missouri |
| 78 | John Squire Walker | 5 | Son | — | Missouri |
| 79 | Newton Jackson | 29 | Head | Laborer | Missouri |
| 80 | Christine Jackson | 32 | Wife | Maid | 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)