MH
Mary Hancock — 1940 US Census Record
Model Tree available1940 United States Federal Census · Chesterfield-County, Virginia
Our Model Tree links this Mary Hancock across the 1920, 1930 and 1940 US Censuses in Chesterfield-County, Virginia (XGBoost, ~Confirmed), with identified parents Flora & George — first a daughter (b.~1920), then head of a 5-person household.
Age 20
b. ~1920
Female
Daughter
Born: Virginia
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Chesterfield-County, Virginia |
| Surname | Hancock |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Virginia |
| 1935 Residence (City) | Dale District |
| 1935 Residence (County) | Chesterfield |
| Additional Details | |
| Occupation | Houseworker |
| Class of Worker | PW |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
| Occupation | Houseworker |
| Township / Ward | Dale District |
| Est. Birth Year | ~1920 |
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 |
|---|---|---|---|---|
| Walter Hancock | Son | — | 26 | ~1914 |
| Junius Hancock | Head | — | 54 | ~1886 |
| Algia Hancock | Daughter | — | 15 | ~1925 |
| Mary Hancock | Daughter | — | 20 | ~1920 |
| Bessie Hancock | Spouse | — | 44 | ~1896 |
Census Appearances
1920
Chesterfield, Virginia
Daughter, age 2
Chesterfield, Virginia · implied b. ~1918 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hancock |
| Given Name | Mary L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Virginia |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Speaks English | Yes |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1930
Chesterfield, Virginia
Daughter, age 10
Chesterfield, Virginia · implied b. ~1920 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hancock |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Virginia |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Can Read/Write | Yes |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1940
Chesterfield-County, Virginia
Daughter, age 20
Chesterfield-County, Virginia · implied b. ~1920 — 5 household members
| Surname | Hancock |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Virginia |
| 1935 Residence (City) | Dale District |
| 1935 Residence (County) | Chesterfield |
| Occupation | Houseworker |
| Class of Worker | PW |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 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 Hancock across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Flora Hancock (~0.85 confidence) and father George Hancock (~0.85 confidence) and father Junius Hancock (~0.92 confidence) and father Walter Hancock (~0.92 confidence) and mother Bessie Hancock (~0.92 confidence) and mother Pearl Hancock (~0.92 confidence). The pedigree spans 2 generations with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.9
Mother
Flora Hancock
b. ~1860
Source father>mother
● Household
· direct · ~0.85
Father
George Hancock
b. ~1866
Source father>father
● Household
· direct · ~0.85
Father
Junius Hancock
b. ~1886
Source father
● Household
· direct · ~0.92
Father
Walter Hancock
b. ~1894
Source father
● Household
· direct · ~0.92
Mother
Bessie Hancock
b. ~1895
Source mother
● Household
· direct · ~0.92
Mother
Pearl Hancock
b. ~1900
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Hancock
Daughter · 1940 · age 20 · b. ~1920 · Virginia
★ You are viewing this record
Sibling
Algia Hancock
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Hancock
Sibling · 1940 · age 26
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 — Chesterfield-County, Virginia
Open full size
1940 US Federal Census — Chesterfield-County, Virginia
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04255-00251)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Charles G. Jackson | 4 | Son | — | Virginia |
| 42 | Sylvia Jackson | 2 | Daughter | — | Virginia |
| 43 | Barbara A. Jackson | 0 | Daughter | — | Virginia |
| 44 | Joseph Frazier | 31 | Brother in law | Labour | North Carolina |
| 45 | Myrtle Frazier | 23 | Sister in law | House Keeper | Virginia |
| 46 | Mary M. Ford | 56 | Head | Wash Woman | Virginia |
| 47 | Jonathan Jones | 24 | Grand son | Labour | Virginia |
| 48 | Rebecca Jones | 10 | Grand daughter | — | Virginia |
| 49 | Thomas Williams | 25 | Boarder | Labour | Virginia |
| 50 | Fred Jefferson | 64 | Boarder | Labour | Virginia |
| 51 | John T. Martin | 43 | Head | Farmer | Virginia |
| 52 | Dora I. Martin | 38 | Wife | — | Virginia |
| 53 | Floyd W. Martin | 17 | Son | Farmer | Virginia |
| 54 | Ruby M. Martin | 15 | Daughter | — | Virginia |
| 55 | Ruth Martin | 12 | Daughter | — | Virginia |
| 56 | Mary F. Martin | 9 | Daughter | — | Virginia |
| 57 | Henry C. Martin | 5 | Son | — | Virginia |
| 58 | Edna Bradley | 50 | Head | — | Virginia |
| 59 | Dort C. Bradley | 59 | Husband | Farmer | Virginia |
| 60 | Mamie Jackson | 14 | Helper | — | Virginia |
| 61 | Cora Washington | 27 | Head | — | Virginia |
| 62 | Adolphus Washington | 19 | Son | Wood Cutter | Virginia |
| 63 | Mary Washington | 16 | Daughter | House Cleaner | Virginia |
| 64 | Ruby Washington | 14 | Daughter | House Worker | Virginia |
| 65 | Samuel Bentley | 50 | Head | Labour | Virginia |
| 66 | Ida Lou Bentley | 31 | Wife | — | Virginia |
| 67 | Samuel Jr. Bentley | 11 | Son | — | Virginia |
| 68 | James Bentley | 8 | Son | — | Virginia |
| 69 | Edward Mccrae | 55 | Head | Preacher | North Carolina |
| 70 | Elizabeth Mccrae | 39 | Wife | — | North Carolina |
| 71 | Andrew Bailey | 60 | Head | Labour | Virginia |
| 72 | Lottie Bailey | 56 | Wife | — | Virginia |
| 73 | Verla Bailey | 27 | Daughter | House Keeper | Virginia |
| 74 | Maxine Bailey | 17 | Daughter | Stemmer | Virginia |
| 75 | Juanita Bailey | 10 | Daughter | — | Virginia |
| 76 | Junius Hancock | 54 | Head | Labour | Virginia |
| 77 | Bessie Hancock | 44 | Wife | — | Virginia |
| 78 | Walter Hancock | 26 | Son | Labour | Virginia |
| 79 | Mary E. Hancock THIS PERSON | 20 | Daughter | Houseworker | Virginia |
| 80 | Algia I. Hancock | 15 | Daughter | — | Virginia |
Pedigree Summary
Mary + 2 siblings
Gen 1 · 4 parents
~0.92
Gen 2 · 2 grandparents
~0.85
Max depth 4 (1900–1950 window)
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)