KA
Katherine Anderson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Webster-County, Iowa
Our Model Tree links this Katherine Anderson across the 1930 and 1940 US Censuses in Webster-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 6-person household.
Age 17
b. ~1923
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Webster-County, Iowa |
| Surname | Anderson |
| Given Name | Katherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Lost Grove |
| 1935 Residence (County) | Webster |
| Additional Details | |
| Highest Grade | Hs 1 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Lost Grove |
| Est. Birth Year | ~1923 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Katherine | Age | Birth yr |
|---|---|---|---|---|
| Irene Anderson | Daughter | — | 11 | ~1929 |
| Edna Anderson | Head | — | 44 | ~1896 |
| Darwin Anderson | Son | — | 12 | ~1928 |
| Katherine Anderson | Daughter | — | 17 | ~1923 |
| Richard Anderson | Son | — | 15 | ~1925 |
| Evelyn Anderson | Daughter | — | 14 | ~1926 |
Census Appearances
1930
Webster, Iowa
Daughter, age 7
Webster, Iowa · implied b. ~1923 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Anderson |
| Given Name | Katherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Webster-County, Iowa
Daughter, age 17
Webster-County, Iowa · implied b. ~1923 — 6 household members
| Surname | Anderson |
| Given Name | Katherine |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Lost Grove |
| 1935 Residence (County) | Webster |
| Highest Grade | Hs 1 |
| 1935 Residence | Same house |
| 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 Anderson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Katherine Anderson
Daughter · 1940 · age 17 · b. ~1923 · Iowa
★ You are viewing this record
Sibling
Irene Anderson
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Darwin Anderson
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Evelyn Anderson
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Anderson
Sibling · 1940 · age 15
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 — Webster-County, Iowa
Open full size
1940 US Federal Census — Webster-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01212-00400)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Sophie M. Carlson | 61 | Wife | — | Iowa |
| 42 | Richard Carlson | 20 | Son | Farmer | Iowa |
| 43 | Elizabeth Carlson | 17 | Daughter | — | Iowa |
| 44 | Mabel Hartquist | 59 | Head | — | Iowa |
| 45 | Bert Hartquist | 24 | Son | Trucker | Iowa |
| 46 | Charles Hartquist | 22 | Son | Operator | Iowa |
| 47 | Emma Kullberg | 48 | Head | — | Iowa |
| 48 | Arlene Kullberg | 11 | Daughter | — | Iowa |
| 49 | Edna Anderson | 44 | Head | — | Iowa |
| 50 | Katherine Anderson THIS PERSON | 17 | Daughter | — | Iowa |
| 51 | Richard Anderson | 15 | Son | — | Iowa |
| 52 | Evelyn Anderson | 14 | Daughter | — | Iowa |
| 53 | Darwin Anderson | 12 | Son | — | Iowa |
| 54 | Irene Anderson | 11 | Daughter | — | Iowa |
| 55 | Mathilda Bjork | 64 | Head | — | Sweden |
| 56 | Hannah Bjork | 46 | Daughter | — | Iowa |
| 57 | Amanda Erickson | 75 | Head | — | Sweden |
| 58 | Ida Anderson | 48 | Lodger | — | Illinois |
| 59 | Carl A. Carlson | 72 | Head | — | Illinois |
| 60 | Anna Carlson | 70 | Wife | — | Sweden |
| 61 | Mildred Carlson | 39 | Daughter | — | Iowa |
| 62 | Justus Carlson | 73 | Head | — | Sweden |
| 63 | Anna Carlson | 73 | Wife | — | Sweden |
| 64 | Bertha Lindgren | 71 | Head | — | Sweden |
| 65 | Axel Mossberg | 54 | Head | Merchant | Sweden |
| 66 | Hulda Mossberg | 51 | Wife | — | Iowa |
| 67 | Gust Burgh | 80 | Head | — | Sweden |
| 68 | Mathilda Burgh | 76 | Wife | — | Sweden |
| 69 | Jennie Burgh | 47 | Daughter | — | Iowa |
| 70 | Paul Burgh | 41 | Son | Farmer | Iowa |
| 71 | Harry Carlson | 40 | Head | Proprietor | Iowa |
| 72 | Imo Carlson | 37 | Wife | — | Illinois |
| 73 | Dean Carlson | 5 | Son | — | Iowa |
| 74 | Dale Stotts | 24 | Lodger | Mechanic | Illinois |
| 75 | Paul Le Roy Olson | 37 | Head | Clergyman | Minnesota |
| 76 | Alfreda Olson | 36 | Wife | — | Michigan |
| 77 | Virginia Mae Olson | 9 | Daughter | — | Minnesota |
| 78 | Angelina Olson | 8 | Daughter | — | Minnesota |
| 79 | Timothy Olson | 4 | Son | — | Minnesota |
| 80 | Marilyn Olson | 1 | Daughter | — | Iowa |
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)