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John Brock — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Wise, Virginia
Our Model Tree links this John Brock across the 1930 and 1940 US Censuses in Wise, Virginia (XGBoost, ~Confirmed) — first a son (b.~1929), then head of a 13-person household.
Age 1
b. ~1929
Male
Son
Born: Virginia
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Wise, Virginia |
| Surname | Brock |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Virginia |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Virginia |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Virginia |
| Birth Country | United States |
| Birthplace (normalized) | virginia |
| Township / Ward | Richmond Magisterial District |
| Est. Birth Year | ~1929 |
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.
13 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| James Brock | Son | — | 8 | ~1922 |
| Mary Brock | Daughter | — | 1 | ~1929 |
| Mary Brock | Spouse | — | 38 | ~1892 |
| Charles Brock | Son | — | 14 | ~1916 |
| Lula Brock | Daughter | — | 4 | ~1926 |
| Alice Brock | Daughter | — | 10 | ~1920 |
| Helen Brock | Daughter | — | 1 | ~1929 |
| Arthur Brock | Son | — | 12 | ~1918 |
| Walter Brock | Son | — | 2 | ~1928 |
| John Brock | Son | — | 1 | ~1929 |
| Fred Brock | Son | — | 16 | ~1914 |
| George Brock | Son | — | 6 | ~1924 |
| Fred Brock | Head | — | 41 | ~1889 |
Census Appearances
1930
Wise, Virginia
Son, age 1
Wise, Virginia · implied b. ~1929 — 13 household members
| Surname | Brock |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| 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
Wise-County, Virginia
Son, age 10
Wise-County, Virginia · implied b. ~1930 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brooks |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Virginia |
| 1935 Residence (City) | Gladeville Mag. |
| 1935 Residence (County) | Wise |
| Highest Grade | No 2 |
| 1935 Residence | Virginia |
| 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 John Brock across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Brock
Son · 1930 · age 1 · b. ~1929 · Virginia
★ You are viewing this record
Sibling
Lula Brock
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Brock
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Arthur Brock
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Brock
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Brock
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Fred Brock
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Brock
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Brock
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Brock
Sibling · 1930 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Brock
Sibling · 1930 · age 10
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
1930 US Federal Census — Wise, Virginia
Open full size
1930 US Federal Census — Wise, Virginia
Page Contents
50 people indexed on this census page (ia:1930:15thcensus2465unitrs:0221)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mollie A Hughes | 22 | Daughter | Cashier | Virginia |
| 2 | Willie Hughes | 20 | Son | — | Kentucky |
| 3 | Joseph Hughes | 18 | Daughter | — | Virginia |
| 4 | George Hughes | 16 | Son | — | Virginia |
| 5 | Walter Reid | 40 | Head | — | Alabama |
| 6 | Lula Reid | 37 | Wife | — | South Carolina |
| 7 | Lula Reid | 16 | Daughter | — | South Carolina |
| 8 | Walter Reid | 14 | Son | — | South Carolina |
| 9 | James Reid | 12 | Son | — | Virginia |
| 10 | John Hamilton | 42 | Head | — | Virginia |
| 11 | Margaret Hamilton | 40 | Wife | — | Virginia |
| 12 | Margaret Hamilton | 18 | Daughter | — | Virginia |
| 13 | John Hamilton | 16 | Son | — | Virginia |
| 14 | Alice Hamilton | 14 | Daughter | — | Virginia |
| 15 | Charles Hamilton | 12 | Son | — | Virginia |
| 16 | Fred Brock | 41 | Head | — | Virginia |
| 17 | Mary Brock | 38 | Wife | — | Virginia |
| 18 | Fred Brock | 16 | Son | — | Virginia |
| 19 | Charles Brock | 14 | Son | — | Virginia |
| 20 | Arthur Brock | 12 | Son | — | Virginia |
| 21 | Alice Brock | 10 | Daughter | — | Virginia |
| 22 | James Brock | 8 | Son | — | Virginia |
| 23 | George Brock | 6 | Son | — | Virginia |
| 24 | Lula Brock | 4 | Daughter | — | Virginia |
| 25 | Walter Brock | 2 | Son | — | Virginia |
| 26 | Helen Brock | 1 | Daughter | — | Virginia |
| 27 | Mary Brock | 1 | Daughter | — | Virginia |
| 28 | John Brock THIS PERSON | 1 | Son | — | Virginia |
| 29 | Robert Fisher | 52 | Head | — | Virginia |
| 30 | Mary Fisher | 48 | Wife | — | Virginia |
| 31 | Robert Fisher | 20 | Son | — | Virginia |
| 32 | Mary Fisher | 18 | Daughter | — | Virginia |
| 33 | John Fisher | 16 | Son | — | Virginia |
| 34 | Marshall Mahan | 50 | Head | — | Virginia |
| 35 | Victoria Mahan | 46 | Wife | — | Virginia |
| 36 | Marshall Mahan | 20 | Son | — | Virginia |
| 37 | John Mahan | 18 | Son | — | Virginia |
| 38 | Victoria Mahan | 16 | Daughter | — | Virginia |
| 39 | Alice Mahan | 14 | Daughter | — | Virginia |
| 40 | Charles Mahan | 12 | Son | — | Virginia |
| 41 | Margaret Mahan | 10 | Daughter | — | Virginia |
| 42 | John Mahan | 8 | Son | — | Virginia |
| 43 | James Mullins | 45 | Head | Coal Miner | Virginia |
| 44 | Sara Mullins | 42 | Wife | — | Virginia |
| 45 | Margaret Mullins | 20 | Daughter | — | Virginia |
| 46 | John Mullins | 18 | Son | — | Virginia |
| 47 | Alice Mullins | 16 | Daughter | — | Virginia |
| 48 | Charles Mullins | 14 | Son | — | Virginia |
| 49 | Joseph Mullins | 12 | Son | — | Virginia |
| 50 | Albert Mullins | 10 | Son | — | Virginia |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)