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Mary Boyer — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Washington-County, Missouri
Our Model Tree links this Mary Boyer across the 1920, 1930 and 1940 US Censuses in Washington-County, Missouri (XGBoost, ~Confirmed) — first a spouse (b.~1896), then head of a 5-person household.
Age 44
b. ~1896
Female
Spouse
Born: Missouri
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Washington-County, Missouri |
| Surname | Boyer |
| Given Name | Mary O. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | Union T |
| 1935 Residence (County) | Washington |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same house |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | Union T |
| Est. Birth Year | ~1896 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Michael Boyer | Son | — | 22 | ~1918 |
| Mary Boyer | Spouse | — | 44 | ~1896 |
| Jerome Boyer | Head | — | 65 | ~1875 |
| Robert Boyer | Son | — | 19 | ~1921 |
| Clara Boyer | Daughter | — | 11 | ~1929 |
Census Appearances
1920
Washington, Missouri
Spouse, age 20
Washington, Missouri · implied b. ~1900 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Boyer |
| Given Name | Mary |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Married |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
Washington, Missouri
Spouse, age 32
Washington, Missouri · implied b. ~1898 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Boyer |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Missouri |
| Age at First Marriage | 16 |
| 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
Washington-County, Missouri
Spouse, age 44
Washington-County, Missouri · implied b. ~1896 — 5 household members
| Surname | Boyer |
| Given Name | Mary O. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | Union T |
| 1935 Residence (County) | Washington |
| Class of Worker | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same house |
| 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 Boyer 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 Boyer
Spouse · 1940 · age 44 · b. ~1896 · 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 — Washington-County, Missouri
Open full size
1940 US Federal Census — Washington-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02163-00388)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Marenetha Pinson | 29 | Wife | — | Missouri |
| 2 | Fernandez Pinson | 4 | Son | — | Missouri |
| 3 | David Pinson | 2 | Son | — | Missouri |
| 4 | James A. Courtois | 26 | Head | Miner | Missouri |
| 5 | Pauline O. Courtois | 19 | Wife | — | Missouri |
| 6 | George Barton | 19 | Head | Laborer | Missouri |
| 7 | Gladys A. Barton | 19 | Wife | — | Missouri |
| 8 | Kyle Boyer | 56 | Head | Laborer | Missouri |
| 9 | Ella O. Boyer | 56 | Wife | — | Missouri |
| 10 | Cora Boyer | 19 | Daughter | — | Missouri |
| 11 | Faye Boyer | 17 | Daughter | — | Missouri |
| 12 | Annie C. Boyer | 13 | Daughter | — | Missouri |
| 13 | Dean Herbert Boyer | 8 | Son | — | Missouri |
| 14 | Ernest Rhodes | 32 | Head | Miner | Missouri |
| 15 | Wilma O. Rhodes | 25 | Wife | — | Missouri |
| 16 | Lennie Rhodes | 6 | Adopted Son | — | Missouri |
| 17 | William Cassaday | 33 | Head | Laborer | Texas |
| 18 | Nellie O. Cassaday | 29 | Wife | — | Missouri |
| 19 | James Cassaday | 8 | Son | — | Missouri |
| 20 | Euelin Cassaday | 5 | Son | — | Missouri |
| 21 | Joseph Cassaday | 5 | Son | — | Missouri |
| 22 | John Cassaday | 2 | Son | — | Missouri |
| 23 | Jerome Boyer | 65 | Head | Miner | Missouri |
| 24 | Mary O. Boyer THIS PERSON | 44 | Wife | — | Missouri |
| 25 | Michael Boyer | 22 | Son | Miner | Missouri |
| 26 | Robert Boyer | 19 | Son | Miner | Missouri |
| 27 | Clara Boyer | 11 | Daughter | — | Missouri |
| 28 | Andrew Thickeleau | 70 | Head | Farmer | Missouri |
| 29 | Florence Thickeleau | 63 | Wife | — | Missouri |
| 30 | Easton Boyer | 34 | Head | Miner | Missouri |
| 31 | Myrtle Boyer | 35 | Wife | — | Missouri |
| 32 | Catherine Boyer | 11 | Daughter | — | Missouri |
| 33 | Herbert Boyer | 9 | Son | — | Missouri |
| 34 | Simon Boyer | 8 | Son | — | Missouri |
| 35 | Carl Boyer | 2 | Son | — | Missouri |
| 36 | Charlotte Boyer | 1 | Daughter | — | Missouri |
| 37 | Henry Schutte | 31 | Head | Miner | Missouri |
| 38 | Loretta O. Schutte | 21 | Wife | — | Missouri |
| 39 | Mary Schutte | 1 | Daughter | — | Missouri |
| 40 | Christina Schutte | 0 | Daughter | — | 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)