KJ
Katherine Johnson — 1910 US Census Record
Model Tree available1910 United States Federal Census · Winneshiek, Iowa
Our Model Tree links this Katherine Johnson across the 1910, 1920 and 1930 US Censuses in Winneshiek, Iowa (XGBoost, ~Confirmed), with identified parents Helena — first a daughter (b.~1885), then head of a 4-person household.
Age 25
b. ~1885
Female
Daughter
Born: Iowa
Single
1910 Census Record Details
| Census Year | 1910 |
| Location | Winneshiek, Iowa |
| Surname | Johnson |
| Given Name | Katherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Additional Details | |
| Occupation | Teacher |
| Industry | Country school |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Teacher |
| Township / Ward | Decorah City |
| Est. Birth Year | ~1885 |
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.
4 people recorded at the same address in the 1910 census.
| Name | Relation to head | Relative to Katherine | Age | Birth yr |
|---|---|---|---|---|
| Melvin Johnson | Son | — | 19 | ~1891 |
| Helena Johnson | Head | — | 62 | ~1848 |
| Katherine Johnson | Daughter | — | 25 | ~1885 |
| Adolph Johnson | Son | — | 22 | ~1888 |
Census Appearances
1910
Winneshiek, Iowa
Daughter, age 25
Winneshiek, Iowa · implied b. ~1885 — 4 household members
| Surname | Johnson |
| Given Name | Katherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Teacher |
| Industry | Country school |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Winneshiek, Iowa
Daughter, age 36
Winneshiek, Iowa · implied b. ~1884 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Katharine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | Teacher |
| Industry | Business College |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Winneshiek, Iowa
Daughter, age 46
Winneshiek, Iowa · implied b. ~1884 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Kate |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 3 US Census years (1910, 1920 and 1930) in Winneshiek, Iowa, using XGBoost record linkage. Identified parents: mother Helena Johnson (~0.92 confidence). The pedigree spans 1 generation with 1 identified ancestor.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Helena Johnson
b. ~1848
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Katherine Johnson
Daughter · 1910 · age 25 · b. ~1885 · Iowa
★ You are viewing this record
Sibling
Melvin Johnson
Sibling · 1910 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Adolph Johnson
Sibling · 1910 · age 22
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
1910 US Federal Census — Winneshiek, Iowa
Open full size
1910 US Federal Census — Winneshiek, Iowa
Page Contents
50 people indexed on this census page (ia:1910:13thcensus1910po428unit:1025)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mrs Anna Larsen | 64 | Head | Commercial | Norway |
| 2 | Eric Gunderson | 39 | Son-in-law | Commercial | Canada |
| 3 | Hattie Gunderson | 34 | Daughter | — | Minnesota |
| 4 | Edmund Gunderson | 0 | Grandson | — | Minnesota |
| 5 | W. S. Hayward | 45 | Head | Commercial | Wisconsin |
| 6 | Lenora Hayward | 45 | Wife | — | Norway |
| 7 | Dan Graham | 53 | Head | — | Wisconsin |
| 8 | Nellie Graham | 52 | Wife | — | Illinois |
| 9 | Byron Graham | 10 | Son | — | Wisconsin |
| 10 | Olaf Wistad | 43 | Boarder | Laborer | Norway |
| 11 | John O'Neil | 45 | Head | Blacksmith | Minnesota |
| 12 | Bertha O'Neil | 32 | Wife | — | Iowa |
| 13 | Laverne O'Neil | 11 | Daughter | — | Iowa |
| 14 | Ruth O'Neil | 8 | Daughter | — | Iowa |
| 15 | Leonard Gunderson | 27 | Head | Salesman | Minnesota |
| 16 | Minnie Gunderson | 25 | Wife | — | Iowa |
| 17 | Amos Smith | 65 | Head | — | Canada |
| 18 | Elizabeth Smith | 61 | Wife | — | Indiana |
| 19 | Thomas Masten | 39 | Head | Commercial Trav | Iowa |
| 20 | Lillian Masten | 37 | Wife | — | Iowa |
| 21 | Lillian Masten | 16 | Daughter | — | Illinois |
| 22 | Carl Harberg | 30 | Head | Proprietor | Iowa |
| 23 | Ingary Harberg | 29 | Wife | — | Wisconsin |
| 24 | Hazel Harberg | 7 | Daughter | — | Iowa |
| 25 | Helena Johnson | 62 | Head | — | Norway |
| 26 | Katherine Johnson THIS PERSON | 25 | Daughter | Teacher | Iowa |
| 27 | Adolph Johnson | 22 | Son | Salesman | Iowa |
| 28 | Melvin Johnson | 19 | Son | Salesman | Iowa |
| 29 | John O. Alstad | 39 | Head | Salesman | Norway |
| 30 | Tilla Alstad | 39 | Wife | Saleslady | Iowa |
| 31 | Lottie Alstad | 16 | Daughter | — | Iowa |
| 32 | S. R. Severson | 73 | Mother-in-law | — | Norway |
| 33 | John Mcandrews | 80 | Head | Laborer | Ireland |
| 34 | Anne Mcandrews | 80 | Wife | — | Ireland |
| 35 | Kate Mcandrews | 30 | Daughter | Apprentice | Iowa |
| 36 | John Mcandrews | 27 | Son | Pressman | Iowa |
| 37 | S. S. Boyd | 41 | Head | Proprietor | Iowa |
| 38 | Elizabeth Boyd | 34 | Wife | — | Iowa |
| 39 | Thomas Boyd | 6 | Son | — | Iowa |
| 40 | Kenneth Boyd | 4 | Son | — | Iowa |
| 41 | Virginia Boyd | 1 | Daughter | — | Iowa |
| 42 | Nels Ronsdahl | 69 | Head | Stoneshewer | Norway |
| 43 | Martha Ronsdahl | 63 | Wife | — | Norway |
| 44 | Carrie Stensrud | 27 | Daughter | — | Iowa |
| 45 | Nels Stensrud | 6 | Grandson | — | Iowa |
| 46 | Melvin Stensrud | 5 | Grandson | — | Iowa |
| 47 | E. O. Stalsberg | 47 | Head | Buttermaker | Iowa |
| 48 | Clara Stalsberg | 49 | Wife | Housekeeper | Iowa |
| 49 | Myrah Stalsberg | 18 | Daughter | Helper | Iowa |
| 50 | Albert Stalsberg | 16 | Son | — | Iowa |
Pedigree Summary
Katherine + 2 siblings
Gen 1 · 1 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1910 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)