MC
Mary Clarke — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Prince-George-County, Virginia
Our Model Tree links this Mary Clarke across the 1930 and 1940 US Censuses in Prince-George-County, Virginia (XGBoost, ~Confirmed) — first a spouse (b.~1901), then head of a 7-person household.
Age 39
b. ~1901
Female
Spouse
Born: Georgia
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Prince-George-County, Virginia |
| Surname | Clarke |
| Given Name | Mary S. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Georgia |
| 1935 Residence (City) | Bland District |
| 1935 Residence (County) | Prince George |
| Additional Details | |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
| Township / Ward | Bland District |
| Est. Birth Year | ~1901 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Harry Clarke | Son | — | 12 | ~1928 |
| Louise Clarke | Daughter | — | 15 | ~1925 |
| Mary Clarke | Spouse | — | 39 | ~1901 |
| Dorothy Clarke | Daughter | — | 17 | ~1923 |
| John Clarke | Son | — | 9 | ~1931 |
| John Clarke | Head | — | 48 | ~1892 |
| Wilbur Clarke | Son | — | 5 | ~1935 |
Census Appearances
1930
Prince George, …
Other, age 28
Prince George, Virginia · implied b. ~1902 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clarke |
| Given Name | Mary S. |
| Relationship to Head | wife H. |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Georgia |
| Age at First Marriage | 17 |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | Alabama |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
1940
Prince-George-County, Virginia
Spouse, age 39
Prince-George-County, Virginia · implied b. ~1901 — 7 household members
| Surname | Clarke |
| Given Name | Mary S. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Georgia |
| 1935 Residence (City) | Bland District |
| 1935 Residence (County) | Prince George |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Georgia |
| Birth Country | United States |
| Birthplace (normalized) | georgia |
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 Clarke across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Clarke
Spouse · 1940 · age 39 · b. ~1901 · 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 — Prince-George-County, Virginia
Open full size
1940 US Federal Census — Prince-George-County, Virginia
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04285-00759)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jeanette D. Atwater | 1 | Daughter | — | Virginia |
| 2 | Samuel L. Hess | 56 | Head | Carpenter | Kentucky |
| 3 | Beulah S. Hess | 48 | Wife | — | Virginia |
| 4 | Francis S. Hess | 15 | Son | News Boy | Virginia |
| 5 | Charlotte M. Hess | 14 | Daughter | — | Virginia |
| 6 | John W. Clarke | 48 | Head | Laborer | Virginia |
| 7 | Mary S. Clarke THIS PERSON | 39 | Wife | — | Georgia |
| 8 | Dorothy S. Clarke | 17 | Daughter | New Worker | Virginia |
| 9 | Louise M. Clarke | 15 | Daughter | — | Virginia |
| 10 | Harry D. Clarke | 12 | Son | — | Virginia |
| 11 | John F. Clarke | 9 | Son | — | Virginia |
| 12 | Wilbur R. Clarke | 5 | Son | — | Virginia |
| 13 | Arthur Mcdaniel | 60 | Head | Watchman | North Carolina |
| 14 | M. Addie Mcdaniel | 59 | Wife | — | North Carolina |
| 15 | Rolf E. Mcdaniel | 31 | Son | Truck Driver | South Carolina |
| 16 | H. Curtis Mcdaniel | 29 | Son | Helper | South Carolina |
| 17 | W. Edgar Mcdaniel | 13 | Son | — | North Carolina |
| 18 | James E. Passmore | 43 | Head | Mechanic | Virginia |
| 19 | Elizabeth Passmore | 39 | Wife | — | Kentucky |
| 20 | Peggy J. Passmore | 13 | Daughter | — | Kentucky |
| 21 | James E. Jr. Passmore | 9 | Son | — | Virginia |
| 22 | James S. Rogers | 65 | Head | Farmer | North Carolina |
| 23 | Oma L. Rogers | 63 | Wife | — | North Carolina |
| 24 | John L. Rogers | 29 | Son | Spinning Operator | North Carolina |
| 25 | Wiley W. Rogers | 26 | Son | Owner | North Carolina |
| 26 | Sarah N. Rogers | 23 | Daughter | New Worker | North Carolina |
| 27 | Benjamin Ivey | 52 | Head | Elevator Operator | North Carolina |
| 28 | Arthur L. Mcdaniel | 27 | Head | Truck Driver | South Carolina |
| 29 | Mary L. Mcdaniel | 28 | Wife | — | North Carolina |
| 30 | Betty L. Mcdaniel | 8 | Daughter | — | Virginia |
| 31 | Arthur C. Mcdaniel | 6 | Son | — | Virginia |
| 32 | Robert M. Mcdaniel | 4 | Son | — | Virginia |
| 33 | Jo Ann Mcdaniel | 2 | Daughter | — | Virginia |
| 34 | Oscar F. Mccollum | 35 | Head | Oiler | North Carolina |
| 35 | Ethel R. Mccollum | 33 | Wife | — | North Carolina |
| 36 | W. Franklin Mccollum | 11 | Son | — | Virginia |
| 37 | James R. Mccollum | 1 | Son | — | Virginia |
| 38 | Jack Davis | 40 | Head | Mold Runner | Maryland |
| 39 | Estell Davis | 41 | Wife | — | Virginia |
| 40 | Florence M. Davis | 14 | Daughter | — | 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)