HM
Helen Mason — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Campbell-County, Virginia
Our Model Tree links this Helen Mason across the 1930 and 1940 US Censuses in Campbell-County, Virginia (XGBoost, ~Confirmed) — first a daughter (b.~1927), then head of a 11-person household.
Age 13
b. ~1927
Female
Daughter
Born: Virginia
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Campbell-County, Virginia |
| Surname | Mason |
| Given Name | Helen Kelly |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Virginia |
| 1935 Residence (City) | Seneca Magisterial District |
| 1935 Residence (County) | Campbell |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
| Township / Ward | Seneca Magisterial District |
| Est. Birth Year | ~1927 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Oliver Mason | Son | — | 15 | ~1925 |
| Paul Mason | Son | — | 10 | ~1930 |
| Allen Mason | Son | — | 17 | ~1923 |
| Irene Mason | Daughter | — | 19 | ~1921 |
| Betty Mason | Daughter | — | 1 | ~1939 |
| Willie Mason | Son | — | 21 | ~1919 |
| Helen Mason | Daughter | — | 13 | ~1927 |
| Milford Mason | Son | — | 7 | ~1933 |
| Willie Mason | Head | — | 48 | ~1892 |
| Clara Mason | Daughter | — | 5 | ~1935 |
| Mary Mason | Spouse | — | 41 | ~1899 |
Census Appearances
1930
Campbell, Virginia
Daughter, age 5
Campbell, Virginia · implied b. ~1925 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mason |
| Given Name | Helen V |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Virginia |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
1940
Campbell-County, Virginia
Daughter, age 13
Campbell-County, Virginia · implied b. ~1927 — 11 household members
| Surname | Mason |
| Given Name | Helen Kelly |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Virginia |
| 1935 Residence (City) | Seneca Magisterial District |
| 1935 Residence (County) | Campbell |
| Highest Grade | No 5 |
| 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 Helen Mason across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Helen Mason
Daughter · 1940 · age 13 · b. ~1927 · Virginia
★ You are viewing this record
Sibling
Allen Mason
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Milford Mason
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Mason
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Willie Mason
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Irene Mason
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clara Mason
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Oliver Mason
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Mason
Sibling · 1940 · age 1
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 — Campbell-County, Virginia
Open full size
1940 US Federal Census — Campbell-County, Virginia
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-04252-01073)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Grace Phillips | 34 | Daughter | School Teacher | Virginia |
| 42 | Edwin Phillips | 21 | Son | Farmer | Virginia |
| 43 | Joe Palmer | 27 | Lodger | Farmer | Virginia |
| 44 | Preston Noel | 19 | Lodger | Farmer | Virginia |
| 45 | Willie G. Mason | 48 | Head | Farmer | Virginia |
| 46 | Mary Mason | 41 | Wife | — | Virginia |
| 47 | Willie F. Mason | 21 | Son | Frame Spinner | Virginia |
| 48 | Irene Mason | 19 | Daughter | — | Virginia |
| 49 | Allen Randolph Mason | 17 | Son | Farmer | Virginia |
| 50 | Oliver Reed Mason | 15 | Son | — | Virginia |
| 51 | Helen Kelly Mason THIS PERSON | 13 | Daughter | — | Virginia |
| 52 | Paul Humphrey Mason | 10 | Son | — | Virginia |
| 53 | Milford Hill Mason | 7 | Son | — | Virginia |
| 54 | Clara Marie Mason | 5 | Daughter | — | Virginia |
| 55 | Betty Jean Mason | 1 | Daughter | — | Virginia |
| 56 | James Gayce Hall | 34 | Head | Laborer | Virginia |
| 57 | Ethel Hall | 32 | Wife | — | Virginia |
| 58 | Leslie Anderson Hall | 10 | Son | — | Virginia |
| 59 | Wayne Jackson Hall | 7 | Son | — | Virginia |
| 60 | Mamie Lois Hall | 5 | Daughter | — | Virginia |
| 61 | Ethel Marie Hall | 3 | Daughter | — | Virginia |
| 62 | James Gayce Hall | 1 | Son | — | Virginia |
| 63 | Joe Mason | 51 | Head | Mill Operator | Virginia |
| 64 | Janie Mason | 47 | Wife | — | Virginia |
| 65 | Ralph Edward Mason | 18 | Son | Mill Worker | Virginia |
| 66 | Kathaleen Mason | 16 | Daughter | — | Virginia |
| 67 | Howard Mason | 14 | Son | — | Virginia |
| 68 | Martha Jane Mason | 9 | Daughter | — | Virginia |
| 69 | Melvinie Mason | 7 | Daughter | — | Virginia |
| 70 | Lillie May Mason | 3 | Daughter | — | Virginia |
| 71 | Leata Reese | 31 | Head | Seamstress | Virginia |
| 72 | Mary Ellen Reese | 10 | Daughter | — | Virginia |
| 73 | David Reese | 4 | Son | — | Virginia |
| 74 | Agnes Mason | 49 | Head | — | Virginia |
| 75 | Beulah Mason | 15 | Daughter | — | Virginia |
| 76 | Egaltan Mason | 11 | Son | — | Virginia |
| 77 | Luther Mason | 8 | Son | — | Virginia |
| 78 | A. J. Cox | 45 | Head | Machine Operator | Virginia |
| 79 | Kabina Cox | 37 | Wife | — | Virginia |
| 80 | Thelma Cox | 18 | Daughter | New Worker | 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)