MH
Mary Hays — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Washington-County, Missouri
Our Model Tree links this Mary Hays across the 1930 and 1940 US Censuses in Washington-County, Missouri (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 8-person household.
Age 11
b. ~1929
Female
Daughter
Born: Missouri
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Washington-County, Missouri |
| Surname | Hays |
| Given Name | Mary Lou |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Bellevue |
| 1935 Residence (County) | Washington |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Township / Ward | Bellevue |
| Est. Birth Year | ~1929 |
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 |
|---|---|---|---|---|
| Martha Hays | Daughter | — | 4 | ~1936 |
| Frances Hays | Daughter | — | 16 | ~1924 |
| Annie Hays | Spouse | — | 41 | ~1899 |
| Maxine Hays | Daughter | — | 15 | ~1925 |
| Mary Hays | Daughter | — | 11 | ~1929 |
| Margaret Hays | Daughter | — | 12 | ~1928 |
| Walter Hays | Son | — | 19 | ~1921 |
| Willard Hays | Son | — | 1 | ~1939 |
Census Appearances
1930
Washington, Missouri
Daughter, age
Washington, Missouri · implied b. ~1930 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hays |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Missouri |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
Washington-County, Missouri
Daughter, age 11
Washington-County, Missouri · implied b. ~1929 — 8 household members
| Surname | Hays |
| Given Name | Mary Lou |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Missouri |
| 1935 Residence (City) | Bellevue |
| 1935 Residence (County) | Washington |
| Class of Worker | 0 |
| Highest Grade | No 5 |
| 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 Hays across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Hays
Daughter · 1940 · age 11 · b. ~1929 · Missouri
★ You are viewing this record
Sibling
Frances Hays
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martha Hays
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Hays
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Willard Hays
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Hays
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Maxine Hays
Sibling · 1940 · age 15
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 — 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-t0627-02163-00054)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Annie Bell Hays | 41 | Wife | — | Missouri |
| 2 | Walter Hays | 19 | Son | Laborer | Missouri |
| 3 | Frances Hays | 16 | Daughter | — | Missouri |
| 4 | Maxine Hays | 15 | Daughter | — | Missouri |
| 5 | Margaret Hays | 12 | Daughter | — | Missouri |
| 6 | Mary Lou Hays THIS PERSON | 11 | Daughter | — | Missouri |
| 7 | Martha Jane Hays | 4 | Daughter | — | Missouri |
| 8 | Willard Grant Hays | 1 | Son | — | Missouri |
| 9 | Jim Williams | 55 | Head | Laborer | Missouri |
| 10 | Ruby Williams | 23 | Wife | — | Missouri |
| 11 | Dallas G. Williams | 5 | Son | — | Missouri |
| 12 | Bonnie M. Williams | 2 | Daughter | — | Missouri |
| 13 | Arthur Mcnabb | 65 | Head | — | Missouri |
| 14 | Lenna Mcnabb | 61 | Wife | — | Missouri |
| 15 | Loubelle Mcnabb | 23 | Daughter | — | Missouri |
| 16 | Ardark Mcnabb | 21 | Daughter | Teacher | Missouri |
| 17 | William D. Akers | 52 | Head | Farmer | Missouri |
| 18 | Etta Akers | 47 | Wife | — | Missouri |
| 19 | Kenneth Akers | 18 | Son | Laborer | Missouri |
| 20 | Charley Akers | 15 | Son | — | Missouri |
| 21 | Lawrence Akers | 13 | Son | — | Missouri |
| 22 | Ida May Akers | 9 | Daughter | — | Missouri |
| 23 | Lester Akers | 20 | Son | Laborer | Missouri |
| 24 | Hilda Akers | 16 | Daughter-in-law | — | Missouri |
| 25 | George Rickman | 41 | Head | Farmer | Missouri |
| 26 | Drudilla Rickman | 72 | Mother | — | Ohio |
| 27 | Gladstone Pruitt | 39 | Head | Laborer | Missouri |
| 28 | Birdie Pruitt | 37 | Wife | — | Tennessee |
| 29 | Bernice Pruitt | 19 | Daughter | Cook | Missouri |
| 30 | Linus Pruitt | 17 | Son | Laborer | Missouri |
| 31 | Thessie Pruitt | 15 | Daughter | — | Missouri |
| 32 | Linn Pruitt | 13 | Son | — | Missouri |
| 33 | Jesse Pruitt | 11 | Son | — | Missouri |
| 34 | Vernon Pruitt | 9 | Son | — | Missouri |
| 35 | Lindell Pruitt | 6 | Son | — | Missouri |
| 36 | Delores Pruitt | 4 | Daughter | — | Missouri |
| 37 | Donald Pruitt | 1 | Son | — | Missouri |
| 38 | Ira Hendrix | 54 | Head | Farmer | Illinois |
| 39 | Bessie Hendrix | 42 | Wife | — | Missouri |
| 40 | Ernest Hendrix | 18 | Son | Laborer | 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)