MC
Mary Caldwell — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Botetourt-County, Virginia
Our Model Tree links this Mary Caldwell across the 1920, 1930 and 1940 US Censuses in Botetourt-County, Virginia (XGBoost, ~Confirmed) — first a spouse (b.~1878), then head of a 3-person household.
Age 62
b. ~1878
Female
Spouse
Born: Virginia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Botetourt-County, Virginia |
| Surname | Caldwell |
| Given Name | Mary T. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Virginia |
| 1935 Residence (City) | Buchanan Mag. Dist. |
| 1935 Residence (County) | Botetourt |
| Additional Details | |
| Class of Worker | 0 |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
| Township / Ward | Buchanan Mag Dist |
| Est. Birth Year | ~1878 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Luther Caldwell | Head | — | 64 | ~1876 |
| Earl Caldwell | Son | — | 24 | ~1916 |
| Mary Caldwell | Spouse | — | 62 | ~1878 |
Census Appearances
1920
Botetourt, Virginia
Spouse, age 41
Botetourt, Virginia · implied b. ~1879 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Caldwell |
| Given Name | Mary E. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 41 |
| Marital Status | Married |
| Birthplace | Virginia |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1930
Botetourt, Virginia
Spouse, age 52
Botetourt, Virginia · implied b. ~1878 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Caldwell |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 52 |
| Marital Status | Married |
| Birthplace | Virginia |
| Age at First Marriage | 24 |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Can Read/Write | Yes |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1940
Botetourt-County, Virginia
Spouse, age 62
Botetourt-County, Virginia · implied b. ~1878 — 3 household members
| Surname | Caldwell |
| Given Name | Mary T. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | Virginia |
| 1935 Residence (City) | Buchanan Mag. Dist. |
| 1935 Residence (County) | Botetourt |
| Class of Worker | 0 |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
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 Caldwell 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 Caldwell
Spouse · 1940 · age 62 · b. ~1878 · Virginia
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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 — Botetourt-County, Virginia
Open full size
1940 US Federal Census — Botetourt-County, Virginia
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04249-00507)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Nelda T. Myers | 31 | Wife | — | Virginia |
| 2 | Dorothy S. Myers | 4 | Daughter | 0 | Virginia |
| 3 | Samuel L. Myers | 2 | Son | 0 | Virginia |
| 4 | Kenneth W. Myers | 0 | Son | 0 | Virginia |
| 5 | Boyce P. Obershain | 67 | Head | Operator | Virginia |
| 6 | Lucy Obershain | 40 | Daughter | — | Virginia |
| 7 | Harley J. Mullins | 15 | Lodger | — | Virginia |
| 8 | James E. Deel | 66 | Head | Operator | Virginia |
| 9 | Lillie B. Deel | 54 | Wife | — | Virginia |
| 10 | Russell R. Deel | 27 | Son | Laborer | Virginia |
| 11 | Joseph S. Deel | 29 | Son | Laborer | Virginia |
| 12 | Stella F. Deel | 23 | Daughter-in-law | — | Virginia |
| 13 | James W. Deel | 6 | Grandson | — | Virginia |
| 14 | Larry K. Deel | 4 | Grandson | — | Virginia |
| 15 | Marlene F. Deel | 3 | Granddaughter | — | Virginia |
| 16 | Joseph S. Jr. Deel | 1 | Grandson | — | Virginia |
| 17 | David L. Simpson | 54 | Head | Operator | Virginia |
| 18 | Marada M. Simpson | 51 | Wife | — | Virginia |
| 19 | Aubrey M. Simpson | 17 | Daughter | — | Virginia |
| 20 | Bruce H. Simpson | 14 | Son | — | Virginia |
| 21 | Isabelle E. Simpson | 12 | Daughter | — | Virginia |
| 22 | Maxine J. Simpson | 9 | Daughter | — | Virginia |
| 23 | Matilda Simpson | 80 | Mother | — | Virginia |
| 24 | Elmer P. Obershain | 54 | Head | Operator | Virginia |
| 25 | Lawrence B. Obershain | 30 | Son | Laborer | Virginia |
| 26 | Lee Obershain | 29 | Son | Salesman | Virginia |
| 27 | James C. Obershain | 26 | Son | Operator | Virginia |
| 28 | Mary L. Obershain | 21 | Daughter | — | Virginia |
| 29 | Ernest P. Jr. Obershain | 19 | Son | Laborer | Virginia |
| 30 | Grace V. Obershain | 16 | Daughter | — | Virginia |
| 31 | Dewey S. Obershain | 13 | Son | — | Virginia |
| 32 | Luther M. Caldwell | 64 | Head | Operator | Virginia |
| 33 | Mary T. Caldwell THIS PERSON | 62 | Wife | — | Virginia |
| 34 | Earl M. Caldwell | 24 | Son | Laborer | Virginia |
| 35 | Thomas W. Atkinson | 40 | Head | Laborer | Virginia |
| 36 | Willie E. Atkinson | 30 | Wife | — | Virginia |
| 37 | William C. Atkinson | 10 | Son | — | Virginia |
| 38 | Mary E. Atkinson | 4 | Daughter | — | Virginia |
| 39 | Wilson W. Baker | 55 | Head | Operator | Virginia |
| 40 | Mattie Baker | 58 | Wife | — | Virginia |
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)