WM
William Mason — 1940 US Census Record
Model Tree available1940 United States Federal Census · Sussex-County, Virginia
Our Model Tree links this William Mason across the 1920, 1930 and 1940 US Censuses in Sussex-County, Virginia (XGBoost, ~Confirmed), with identified parents Prince & Ethel — first a son (b.~1920), then head of a 8-person household.
Age 20
b. ~1920
Male
Son
Born: Virginia
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Sussex-County, Virginia |
| Surname | Mason |
| Given Name | William A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Virginia |
| 1935 Residence (City) | Stony Creek Dist |
| 1935 Residence (County) | Sussex |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | C 3 |
| 1935 Residence | Same place |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
| Township / Ward | Stony Creek Dist |
| 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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| Virginia Mason | Daughter | — | 11 | ~1929 |
| Prince Mason | Head | — | 47 | ~1893 |
| Prince Mason | Son | — | 16 | ~1924 |
| Alvin Mason | Son | — | 18 | ~1922 |
| Gustav Mason | Son | — | 8 | ~1932 |
| Theophilus Mason | Son | — | 5 | ~1935 |
| William Mason | Son | — | 20 | ~1920 |
| Ethel Mason | Spouse | — | 40 | ~1900 |
Census Appearances
1920
Greensville, Virginia
Son, age 1
Greensville, Virginia · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mason |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Virginia |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1930
Sussex, Virginia
Son, age 11
Sussex, Virginia · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mason |
| Given Name | Willie |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 11 |
| 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
Sussex-County, Virginia
Son, age 20
Sussex-County, Virginia · implied b. ~1920 — 8 household members
| Surname | Mason |
| Given Name | William A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Virginia |
| 1935 Residence (City) | Stony Creek Dist |
| 1935 Residence (County) | Sussex |
| Class of Worker | 0 |
| Highest Grade | C 3 |
| 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 William Mason across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: father Prince Mason (~0.92 confidence) and mother Ethel Mason (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Prince Mason
b. ~1893
Source father
● Household
· direct · ~0.92
Mother
Ethel Mason
b. ~1900
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Mason
Son · 1940 · age 20 · b. ~1920 · Virginia
★ You are viewing this record
Sibling
Prince Mason
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gustav Mason
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Theophilus Mason
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alvin Mason
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Virginia Mason
Sibling · 1940 · age 11
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 — Sussex-County, Virginia
Open full size
1940 US Federal Census — Sussex-County, Virginia
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04297-00670)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Maynard Robinson | 12 | Head | — | Virginia |
| 2 | Mary E. Robinson | 9 | Granddaughter | — | Virginia |
| 3 | Henry S. Jones | 33 | Head | Laborer | Virginia |
| 4 | Nalann Jones | 28 | Wife | — | Virginia |
| 5 | Haywood Jones | 12 | Son | — | Virginia |
| 6 | Florence Jones | 9 | Daughter | — | Virginia |
| 7 | Allie Jones | 6 | Son | — | Virginia |
| 8 | James H. Jones | 4 | Son | — | Virginia |
| 9 | Mattie R. S. Parker | 18 | Cousin | — | Virginia |
| 10 | Eva Parker | 14 | Sister-in-law | — | Virginia |
| 11 | Adeline Bunger | 60 | Head | — | Virginia |
| 12 | Charles Cooke | 21 | Grandson | Laborer | Virginia |
| 13 | Luther Potter | 18 | Grandson | Farm Laborer | Virginia |
| 14 | Inez Potter | 16 | Granddaughter | Beatician | Virginia |
| 15 | Mammie Potter | 14 | Granddaughter | — | Virginia |
| 16 | Ruth Potter | 11 | Granddaughter | — | Virginia |
| 17 | Charlie Cahill | 48 | Head | Farming | Virginia |
| 18 | Lucie M. Cahill | 29 | Wife | — | Virginia |
| 19 | Dorothy Cahill | 17 | Daughter | Cook | Virginia |
| 20 | Frances Cahill | 14 | Daughter | — | Virginia |
| 21 | Royal Cahill | 8 | Son | — | Virginia |
| 22 | Charles E. Cahill | 6 | Son | — | Virginia |
| 23 | Lucie M. Cahill | 4 | Daughter | — | Virginia |
| 24 | Jane Cahill | 1 | Daughter | — | Virginia |
| 25 | Prince Mason | 47 | Head | Farming | Virginia |
| 26 | Ethel Mason | 40 | Wife | Cook | Virginia |
| 27 | William A. Mason THIS PERSON | 20 | Son | — | Virginia |
| 28 | Alvin A. Mason | 18 | Son | — | Virginia |
| 29 | Prince Jr. Mason | 16 | Son | — | Virginia |
| 30 | Virginia Mason | 11 | Daughter | — | Virginia |
| 31 | Gustav Mason | 8 | Son | — | Virginia |
| 32 | Theophilus Mason | 5 | Son | — | Virginia |
| 33 | Eddie Mason | 70 | Head | Farming | Virginia |
| 34 | Lucy Mason | 71 | Wife | — | Virginia |
| 35 | Watency Branch | 43 | Head | Farming | Virginia |
| 36 | Rebecca Branch | 31 | Wife | — | Virginia |
| 37 | Alfield Branch | 12 | Son | — | Virginia |
| 38 | Frances Branch | 10 | Daughter | — | Virginia |
| 39 | Watency Jr. Branch | 8 | Son | — | Virginia |
| 40 | Edith Branch | 6 | Daughter | — | Virginia |
Pedigree Summary
William + 5 siblings
Gen 1 · 2 parents
~0.92
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)