KJ
Katherine Johnson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Washington, Texas
Our Model Tree links this Katherine Johnson across the 1920 and 1930 US Censuses in Washington, Texas (XGBoost, ~Confirmed) — first a daughter (b.~1917), then head of a 13-person household.
Age 13
b. ~1917
Female
Daughter
Born: Texas
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Washington, Texas |
| Surname | Johnson |
| Given Name | Katherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Texas |
| Father's Birthplace | Texas |
| Mother's Birthplace | Texas |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
| Township / Ward | Justice Precinct 5 |
| Est. Birth Year | ~1917 |
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 Katherine | Age | Birth yr |
|---|---|---|---|---|
| Cora Johnson | Other | — | 35 | ~1895 |
| John Johnson | Son | — | 17 | ~1913 |
| Johnny Johnson | Head | — | 37 | ~1893 |
| Viola Johnson | Daughter | — | 1 | ~1929 |
| Tav Johnson | Son | — | 9 | ~1921 |
| Robert Johnson | Son | — | 18 | ~1912 |
| Mary Johnson | Daughter | — | 5 | ~1925 |
| Alvin Johnson | Son | — | 11 | ~1919 |
| Nettie Johnson | Daughter | — | 15 | ~1915 |
| Willie Johnson | Daughter | — | 3 | ~1927 |
| Clinnon Johnson | Son | — | 2 | ~1928 |
| Adele Johnson | Daughter | — | 7 | ~1923 |
| Katherine Johnson | Daughter | — | 13 | ~1917 |
Census Appearances
1920
Washington, Texas
Daughter, age 3
Washington, Texas · implied b. ~1917 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Kathrine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Texas |
| Father's Birthplace | Texas |
| Mother's Birthplace | Texas |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
1930
Washington, Texas
Daughter, age 13
Washington, Texas · implied b. ~1917 — 13 household members
| Surname | Johnson |
| Given Name | Katherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Texas |
| Father's Birthplace | Texas |
| Mother's Birthplace | Texas |
| Can Read/Write | Yes |
| Birth State | Texas |
| Birth Country | United States |
| Birthplace (normalized) | texas |
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 Katherine Johnson across 2 US Census years (1920 and 1930) in Washington, Texas, using XGBoost record linkage.
Show:
This person
Anchor record
Katherine Johnson
Daughter · 1930 · age 13 · b. ~1917 · Texas
★ You are viewing this record
Sibling
Adele Johnson
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Johnson
Sibling · 1930 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alvin Johnson
Sibling · 1930 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Johnson
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Viola Johnson
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clinnon Johnson
Sibling · 1930 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Johnson
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nettie Johnson
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Tav Johnson
Sibling · 1930 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Willie Johnson
Sibling · 1930 · age 3
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 — Washington, Texas
Open full size
1930 US Federal Census — Washington, Texas
Page Contents
50 people indexed on this census page (ia:1930:texascensus00reel2406:0979)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Floyd A. Booker | 77 | Head | Farmer | Virginia |
| 52 | Tacitus H. Clay | 37 | Son-in-law | Mail Carrier | Texas |
| 53 | Dorothy E. Clay | 37 | Daughter | Teacher | Texas |
| 54 | Sarah Crenshaw | 70 | Servant | Servant | Georgia |
| 55 | Henry White | 47 | Head | Farmer | Texas |
| 56 | Frances White | 26 | Wife-H | Laborer | Texas |
| 57 | Henry White | 9 | Son | — | Texas |
| 58 | Joe W. Vickers | 42 | Head | Farmer | Texas |
| 59 | Mabel Vickers | 30 | Wife-H | — | Texas |
| 60 | Joe W. Jr. Vickers | 6 | Son | — | Texas |
| 61 | Mary A. Vickers | 5 | Daughter | — | Texas |
| 62 | Gladys L. Vickers | 1 | Daughter | — | Texas |
| 63 | Buck Mccowan | 33 | Head | Farmer | Texas |
| 64 | Annie Mccowan | 32 | Wife-H | Laborer | Texas |
| 65 | Tary Mccowan | 13 | Son | Laborer | Texas |
| 66 | Howard Mccowan | 12 | Son | Laborer | Texas |
| 67 | Mary Mccowan | 11 | Daughter | Laborer | Texas |
| 68 | Willie Mae Mccowan | 6 | Daughter | — | Texas |
| 69 | Ester Mccowan | 3 | Daughter | — | Texas |
| 70 | Jesse M. Mccowan | 1 | Son | — | Texas |
| 71 | Johnny Johnson | 37 | Head | Farmer | Texas |
| 72 | Cora Johnson | 35 | Wife-H | Laborer | Texas |
| 73 | Robert Johnson | 18 | Son | Laborer | Texas |
| 74 | John E. Johnson | 17 | Son | Laborer | Texas |
| 75 | Nettie B. Johnson | 15 | Daughter | Laborer | Texas |
| 76 | Katherine Johnson THIS PERSON | 13 | Daughter | — | Texas |
| 77 | Alvin Johnson | 11 | Son | — | Texas |
| 78 | Tav Ot. Johnson | 9 | Son | — | Texas |
| 79 | Adele Johnson | 7 | Daughter | — | Texas |
| 80 | Mary Johnson | 5 | Daughter | — | Texas |
| 81 | Willie E. Johnson | 3 | Daughter | — | Texas |
| 82 | Clinnon Johnson | 2 | Son | — | Texas |
| 83 | Viola Johnson | 1 | Daughter | — | Texas |
| 84 | Harvey Hanks | 43 | Head | Farmer | Texas |
| 85 | Annie Hanks | 44 | Wife-H | Laborer | Texas |
| 86 | Bettie M. Hanks | 20 | Daughter | Laborer | Texas |
| 87 | Icy E. Hanks | 18 | Son | Laborer | Texas |
| 88 | Harvey Jr. Hanks | 17 | Son | Laborer | Texas |
| 89 | Inice L. Hanks | 12 | Son | — | Texas |
| 90 | Nathan Hanks | 8 | Son | — | Texas |
| 91 | Johnny E. Hanks | 4 | Son | — | Texas |
| 92 | William Winkelmann | 47 | Head | Farmer | Texas |
| 93 | Hulda Winkelmann | 45 | Wife-H | Laborer | Texas |
| 94 | Walter Winkelmann | 25 | Son | Laborer | Texas |
| 95 | Ester Winkelmann | 19 | Daughter | Laborer | Texas |
| 96 | — | None | — | — | — |
| 97 | — | None | — | — | — |
| 98 | — | None | — | — | — |
| 99 | — | None | — | — | — |
| 100 | — | None | — | — | — |
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)