JB
James Brock — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Parke, Indiana
Our Model Tree links this James Brock across the 1930 and 1940 US Censuses in Parke, Indiana (XGBoost, ~Confirmed) — first a son (b.~1921), then head of a 8-person household.
Age 9
b. ~1921
Male
Son
Born: Indiana
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Parke, Indiana |
| Surname | Brock |
| Given Name | James |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Liberty Township |
| Est. Birth Year | ~1921 |
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 1930 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| William Brock | Son | — | 4 | ~1926 |
| James Brock | Son | — | 9 | ~1921 |
| Mary Brock | Spouse | — | 44 | ~1886 |
| Oris Brock | Head | — | 39 | ~1891 |
| Charles Cole | Other | — | 6 | ~1924 |
| Herbert Cole | Other | — | 14 | ~1916 |
| John Brock | Son | — | 5 | ~1925 |
| Thelma Brock | Daughter | — | 13 | ~1917 |
Census Appearances
1930
Parke, Indiana
Son, age 9
Parke, Indiana · implied b. ~1921 — 8 household members
| Surname | Brock |
| Given Name | James |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Parke-County, Indiana
Son, age 19
Parke-County, Indiana · implied b. ~1921 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brook |
| Given Name | James S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Liberty Township |
| 1935 Residence (County) | Parke |
| Occupation | Farm Laborer |
| Industry | Farm |
| Class of Worker | NP |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 James Brock across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Brock
Son · 1930 · age 9 · b. ~1921 · Indiana
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Sibling
John Brock
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Brock
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thelma Brock
Sibling · 1930 · age 13
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 — Parke, Indiana
Open full size
1930 US Federal Census — Parke, Indiana
Page Contents
50 people indexed on this census page (ia:1930:indianacensus00reel622:0424)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Marjorie Louise | 7 | daughter | — | Indiana |
| 52 | Elsie Fern | 5 | daughter | — | Indiana |
| 53 | Garland Eugene | 1 | son | — | Indiana |
| 54 | Gansby Williamson | 68 | Head | Farmer | Kentucky |
| 55 | Walter Lewis | 30 | Head | Laborer | Indiana |
| 56 | Sarah Lewis | 30 | wife | None | Indiana |
| 57 | Charley E. Lewis | 7 | son | None | Indiana |
| 58 | Robert W. Lewis | 5 | son | None | Indiana |
| 59 | Caroline Lewis | 75 | mother | None | Indiana |
| 60 | Arron Jones | 18 | brother-in-law | Laborer | Indiana |
| 61 | Odis A. Ratcliff | 46 | Head | Farmer | Indiana |
| 62 | Lettia Ratcliff | 38 | wife | None | Indiana |
| 63 | Thomas Ratcliff | 15 | son | None | Indiana |
| 64 | Marjorie Ratcliff | 14 | daughter | None | Indiana |
| 65 | Ralph Clem Ratcliff | 13 | son | None | Arkansas |
| 66 | Kitty Clover Ratcliff | 11 | daughter | None | Arkansas |
| 67 | Sarah M. Ratcliff | 8 | daughter | None | Arkansas |
| 68 | Robert Lee Ratcliff | 4 | son | None | Indiana |
| 69 | Betty Lou Ratcliff | 2 | daughter | None | Indiana |
| 70 | William Clemery | 62 | Head | Farmer | Indiana |
| 71 | Mary Clemery | 55 | wife | None | Indiana |
| 72 | Daniel Clemery | 19 | son | Laborer | Indiana |
| 73 | Edith Clemery | 16 | daughter | None | Indiana |
| 74 | Charley Debaun | 62 | Head | Farmer | Indiana |
| 75 | David Jackson | 20 | Boarder | Laborer | Indiana |
| 76 | Oris Brock | 39 | Head | Farmer | Indiana |
| 77 | Mary Brock | 44 | wife | None | Indiana |
| 78 | Thelma Brock | 13 | daughter | None | Indiana |
| 79 | James Brock THIS PERSON | 9 | son | None | Indiana |
| 80 | John Brock | 5 | son | None | Indiana |
| 81 | William Brock | 4 | son | None | Indiana |
| 82 | Herbert Cole | 14 | step-son | None | Indiana |
| 83 | Charles Cole | 6 | step-son | None | Indiana |
| 84 | Lloyd Shrake | 22 | Head | Laborer | Indiana |
| 85 | Gray Harvey | 37 | Head | Farmer | Indiana |
| 86 | Margaret Harvey | 24 | wife | None | Indiana |
| 87 | Thomas Ritter | 77 | Head | None | Missouri |
| 88 | Martin Ritter | 54 | Head | Farmer | Indiana |
| 89 | Hattie Ritter | 49 | wife | None | Indiana |
| 90 | Ruby Ritter | 25 | daughter-in-law | None | Indiana |
| 91 | James Ritter | 1 | grandson | None | Indiana |
| 92 | Milton Swaim | 75 | Head | Farmer | Indiana |
| 93 | Margaret Swaim | 73 | wife | None | Indiana |
| 94 | Allen A. Morris | 72 | Head | Farmer | Indiana |
| 95 | Adora Morris | 74 | wife | None | Indiana |
| 96 | James A. Sherrill | 56 | Head | Farmer | Illinois |
| 97 | Louisa Sherrill | 53 | wife | None | Iowa |
| 98 | Roy Sherrill | 33 | son | Laborer | Indiana |
| 99 | Edna May Sherrill | 13 | daughter | None | Indiana |
| 100 | Harvey Pitto | 37 | brother | None | Indiana |
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)