MD
Mary Davidson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Clay-County, Arkansas
Our Model Tree links this Mary Davidson across the 1930 and 1940 US Censuses in Clay-County, Arkansas (XGBoost, ~Confirmed) — first a daughter (b.~1924), then head of a 8-person household.
Age 16
b. ~1924
Female
Daughter
Born: Arkansas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Clay-County, Arkansas |
| Surname | Davidson |
| Given Name | Mary A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Arkansas |
| 1935 Residence (City) | Knob Township |
| 1935 Residence (County) | Clay |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Arkansas |
| Birth State | Arkansas |
| Birth Country | United States |
| Birthplace (normalized) | arkansas |
| Township / Ward | Knob Township |
| Est. Birth Year | ~1924 |
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 |
|---|---|---|---|---|
| Betty Davidson | Daughter | — | 6 | ~1934 |
| Lorene Davidson | Daughter | — | 24 | ~1916 |
| Mary Davidson | Daughter | — | 16 | ~1924 |
| Robert Davidson | Head | — | 50 | ~1890 |
| Ralph Davidson | Son | — | 14 | ~1926 |
| Doyle Davidson | Son | — | 10 | ~1930 |
| Sheryane Davidson | Son | — | 17 | ~1923 |
| Ella Davidson | Spouse | — | 44 | ~1896 |
Census Appearances
1930
Clay, Arkansas
Daughter, age 6
Clay, Arkansas · implied b. ~1924 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davidson |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Arkansas |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Arkansas |
| Occupation | none |
| Birth State | Arkansas |
| Birth Country | United States |
| Birthplace (normalized) | arkansas |
1940
Clay-County, Arkansas
Daughter, age 16
Clay-County, Arkansas · implied b. ~1924 — 8 household members
| Surname | Davidson |
| Given Name | Mary A. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Arkansas |
| 1935 Residence (City) | Knob Township |
| 1935 Residence (County) | Clay |
| Income (1939) | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Arkansas |
| Birth State | Arkansas |
| Birth Country | United States |
| Birthplace (normalized) | arkansas |
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 Davidson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Davidson
Daughter · 1940 · age 16 · b. ~1924 · Arkansas
★ You are viewing this record
Sibling
Lorene Davidson
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Doyle Davidson
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sheryane Davidson
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Davidson
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ralph Davidson
Sibling · 1940 · age 14
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 — Clay-County, Arkansas
Open full size
1940 US Federal Census — Clay-County, Arkansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00124-00416)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Bernice Bartlett | 19 | Daughter | — | Arkansas |
| 2 | Mayzell Bartlett | 16 | Daughter | — | Arkansas |
| 3 | Anna S. Bartlett | 14 | Daughter | — | Arkansas |
| 4 | James L. Bartlett | 11 | Son | — | Arkansas |
| 5 | John J. Bartlett | 7 | Son | — | Arkansas |
| 6 | James D. Dertch | 65 | Head | Laborer | Arkansas |
| 7 | Florence Dertch | 61 | Wife | — | Arkansas |
| 8 | Lola Parsons | 29 | Daughter | — | Arkansas |
| 9 | Ruel Parsons | 33 | Son-in-law | Laborer | Arkansas |
| 10 | Rose M. Parsons | 9 | Granddaughter | — | Arkansas |
| 11 | James H. Parsons | 5 | Grandson | — | Arkansas |
| 12 | Shirl J. Reed | 31 | Head | Laborer | Arkansas |
| 13 | Rosella Reed | 26 | Wife | — | Arkansas |
| 14 | J. C. Reed | 8 | Son | — | Arkansas |
| 15 | Bobby G. Reed | 6 | Son | — | Arkansas |
| 16 | Maylene Reed | 4 | Daughter | — | Arkansas |
| 17 | George R. Horton | 69 | Head | Laborer | Tennessee |
| 18 | Joseph W. Horton | 28 | Son | Laborer | Arkansas |
| 19 | Wilford Horton | 18 | Son | Truck Driver | Arkansas |
| 20 | Stella Alsey | 27 | Daughter | — | Arkansas |
| 21 | Wesley W. Thorne | 31 | Head | Laborer | Arkansas |
| 22 | Vera S. Thorne | 29 | Wife | — | Arkansas |
| 23 | J. W. Thorne | 10 | Son | — | Arkansas |
| 24 | Margarette Thorne | 4 | Daughter | — | Arkansas |
| 25 | Robert E. Davidson | 50 | Head | Laborer | Illinois |
| 26 | Ella Davidson | 44 | Wife | — | Arkansas |
| 27 | Lorene Davidson | 24 | Daughter | — | Arkansas |
| 28 | Sheryane Davidson | 17 | Son | Laborer | Arkansas |
| 29 | Mary A. Davidson THIS PERSON | 16 | Daughter | — | Arkansas |
| 30 | Ralph E. Davidson | 14 | Son | Laborer | Arkansas |
| 31 | Doyle Davidson | 10 | Son | — | Arkansas |
| 32 | Betty J. Davidson | 6 | Daughter | — | Arkansas |
| 33 | Howard R. Baker | 23 | Head | Laborer | Minnesota |
| 34 | Eithel Baker | 22 | Wife | — | Arkansas |
| 35 | Billy L. Baker | 2 | Son | — | Arkansas |
| 36 | William S. Dertch | 67 | Head | Laborer | Arkansas |
| 37 | Annie P. Dertch | 56 | Wife | — | Arkansas |
| 38 | Edna R. Dertch | 32 | Daughter | — | Arkansas |
| 39 | Robert S. Dertch | 38 | Son | Laborer | Arkansas |
| 40 | Earnest Grill | 49 | Head | Laborer | Illinois |
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)