MC
Mary Chapman — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Monroe-County, Missouri
Our Model Tree links this Mary Chapman across the 1920, 1930 and 1940 US Censuses in Monroe-County, Missouri (XGBoost, ~Confirmed) — first a spouse (b.~1897), then head of a 8-person household.
Age 43
b. ~1897
Female
Spouse
Born: Missouri
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Monroe-County, Missouri |
| Surname | Chapman |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | Jackson Tw. |
| 1935 Residence (County) | Monroe |
| Additional Details | |
| Industry | H |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | Jackson Tw |
| Est. Birth Year | ~1897 |
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 |
|---|---|---|---|---|
| Dorothy Chapman | Daughter | — | 11 | ~1929 |
| Thomas Chapman | Head | — | 44 | ~1896 |
| George Blake | Other | — | 29 | ~1911 |
| Fannie Young | Other | — | 69 | ~1871 |
| Lucy Clark | Other | — | 40 | ~1900 |
| Samuel Wheeler | Son | — | 22 | ~1918 |
| William Clark | Son | — | 3 | ~1937 |
| Mary Chapman | Spouse | — | 43 | ~1897 |
Census Appearances
1920
Monroe, Missouri
Spouse, age 25
Monroe, Missouri · implied b. ~1895 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Chapman |
| Given Name | Mary B |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
Monroe, Missouri
Spouse, age 33
Monroe, Missouri · implied b. ~1897 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Chapman |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 33 |
| Marital Status | Married |
| Birthplace | Missouri |
| Age at First Marriage | 31 |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
Monroe-County, Missouri
Spouse, age 43
Monroe-County, Missouri · implied b. ~1897 — 8 household members
| Surname | Chapman |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | Jackson Tw. |
| 1935 Residence (County) | Monroe |
| Industry | H |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| 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 Chapman across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Chapman
Spouse · 1940 · age 43 · b. ~1897 · 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 — Monroe-County, Missouri
Open full size
1940 US Federal Census — Monroe-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02130-00426)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Lillie Wade | 28 | Wife | — | Missouri |
| 42 | Ella Hickenbottom | 70 | Head | — | Missouri |
| 43 | Florence Woodson | 81 | Head | — | Missouri |
| 44 | Vi Stalcup | 73 | Sister | — | Missouri |
| 45 | B. F. Mcgill | 72 | Head | Farmer | Missouri |
| 46 | Irene Mcgill | 71 | Wife | — | Illinois |
| 47 | Thomas T. Chapman | 44 | Head | Farmer | Missouri |
| 48 | Mary Chapman THIS PERSON | 43 | Wife | — | Missouri |
| 49 | Dorothy Chapman | 11 | Daughter | — | Missouri |
| 50 | Samuel Wheeler | 22 | Son | Laborer | Missouri |
| 51 | Lucy Clark | 40 | Sister | — | Missouri |
| 52 | George Blake | 29 | Brother | Farmer | Missouri |
| 53 | Fannie Young | 69 | Mother | — | Kentucky |
| 54 | William Clark | 3 | Son | — | Missouri |
| 55 | Joseph F. Wills | 61 | Head | Farmer | Missouri |
| 56 | Mable C. Wills | 56 | Wife | — | Missouri |
| 57 | Roy R. Reid | 53 | Head | Farmer | Missouri |
| 58 | Mary Lou Reid | 51 | Wife | — | Missouri |
| 59 | Albert D. Stone | 38 | Head | Farmer | Missouri |
| 60 | Lucile Stone | 34 | Wife | — | Missouri |
| 61 | Kenneth E. Stone | 4 | Son | — | Missouri |
| 62 | C. L. Buie | 66 | Head | Farmer | California |
| 63 | Alma Buie | 55 | Wife | — | Missouri |
| 64 | Thelma Buie | 28 | Daughter | — | Missouri |
| 65 | Leon Buie | 27 | Son | Laborer | Missouri |
| 66 | Wilma Buie | 25 | Daughter | Clerk | Missouri |
| 67 | Donald Buie | 18 | Son | Laborer | Missouri |
| 68 | James E. Dover | 73 | Head | — | Missouri |
| 69 | May Dover | 63 | Wife | — | Missouri |
| 70 | W. R. Wilkinson | 62 | Head | Doctor | Missouri |
| 71 | Pearl Wilkinson | 60 | Wife | — | Missouri |
| 72 | Reginald Wilkinson | 25 | Son | Laborer | Missouri |
| 73 | M. T. Curtright | 71 | Head | Farmer | Missouri |
| 74 | Jennie Curtright | 60 | Wife | — | Missouri |
| 75 | H. C. Houghton | 68 | Head | Farmer | Illinois |
| 76 | Agusta Houghton | 60 | Wife | — | Missouri |
| 77 | T. M. Shearer | 57 | Boarder | Laborer | Missouri |
| 78 | William Martin | 73 | Head | Farmer | New York |
| 79 | Gertrude Martin | 58 | Sister | — | New York |
| 80 | H. C. Mashin | 68 | Head | Farmer | 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)