BK
Bertha King — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Polk, Iowa
Our Model Tree links this Bertha King across the 1920 and 1930 US Censuses in Polk, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1908), then head of a 11-person household.
Age 22
b. ~1908
Female
Daughter
Born: Iowa
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Polk, Iowa |
| Surname | King |
| Given Name | Bertha |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Kansas |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Des Moines City |
| Est. Birth Year | ~1908 |
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.
11 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Bertha | Age | Birth yr |
|---|---|---|---|---|
| Bessie King | Daughter | — | 12 | ~1918 |
| William King | Son | — | 17 | ~1913 |
| Goldia King | Daughter | — | 15 | ~1915 |
| Ora King | Daughter | — | 6 | ~1924 |
| Velda King | Daughter | — | 19 | ~1911 |
| Mary King | Other | — | 42 | ~1888 |
| Walter King | Son | — | 10 | ~1920 |
| Mary King | Daughter | — | 7 | ~1923 |
| Grace King | Daughter | — | 1 | ~1929 |
| William King | Head | — | 72 | ~1858 |
| Bertha King | Daughter | — | 22 | ~1908 |
Census Appearances
1920
Polk, Iowa
Daughter, age 12
Polk, Iowa · implied b. ~1908 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | King |
| Given Name | Bertha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Kansas |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Polk, Iowa
Daughter, age 22
Polk, Iowa · implied b. ~1908 — 11 household members
| Surname | King |
| Given Name | Bertha |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Kansas |
| 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 Bertha King across 2 US Census years (1920 and 1930) in Polk, Iowa, using XGBoost record linkage.
Show:
This person
Anchor record
Bertha King
Daughter · 1930 · age 22 · b. ~1908 · Iowa
★ You are viewing this record
Sibling
Bessie King
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Grace King
Sibling · 1930 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Goldia King
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary King
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Velda King
Sibling · 1930 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William King
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter King
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ora King
Sibling · 1930 · age 6
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 — Polk, Iowa
Open full size
1930 US Federal Census — Polk, Iowa
Page Contents
50 people indexed on this census page (ia:1930:iowacensus00reel677:0003)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Matilda Solman | 73 | Head | None | Illinois |
| 2 | Walter Moore | 46 | Head | Moulder | Iowa |
| 3 | Nancy Moore | 38 | wife-H | None | Missouri |
| 4 | Vinton Cowan | 14 | Step son | None | Iowa |
| 5 | June Cowan | 12 | Step daughter | None | Iowa |
| 6 | Dorothy Cowan | 10 | daughter | None | Iowa |
| 7 | Mary Cowan | 8 | daughter | None | Iowa |
| 8 | Leslie Robuck | 29 | Head | Laborer | Iowa |
| 9 | Ethel Robuck | 29 | wife-H | None | Illinois |
| 10 | Clyde Robuck | 12 | Step son | None | Iowa |
| 11 | Leslie Robuck | 10 | son | None | Iowa |
| 12 | Roy Robuck | 8 | son | None | Iowa |
| 13 | James Myron Robuck | 6 | son | None | Iowa |
| 14 | Sam Thompson | 38 | Head | Laborer | South Carolina |
| 15 | Laura Thompson | 38 | wife-H | None | Iowa |
| 16 | Alfred Baldwin | 17 | Step son | Laborer | Iowa |
| 17 | William King | 72 | Head | None | Indiana |
| 18 | Mary King | 42 | wife-H | None | Kansas |
| 19 | Bertha King THIS PERSON | 22 | daughter | None | Iowa |
| 20 | Velda King | 19 | daughter | None | Iowa |
| 21 | William King | 17 | son | None | Iowa |
| 22 | Goldia King | 15 | daughter | None | Iowa |
| 23 | Bessie King | 12 | daughter | None | Iowa |
| 24 | Walter King | 10 | son | None | Iowa |
| 25 | Mary Jane King | 7 | daughter | None | Iowa |
| 26 | Ora King | 6 | daughter | None | Iowa |
| 27 | Grace King | 1 | daughter | None | Iowa |
| 28 | John F Mason | 74 | Head | Laborer | at sea |
| 29 | Anna Mason | 65 | wife-H | None | New York |
| 30 | John B Beeler | 28 | Head | Machinist | Missouri |
| 31 | Helen Beeler | 22 | wife-H | None | Iowa |
| 32 | Ann Colelagier | 52 | mother-in-law | Servant | Iowa |
| 33 | Ed Illingworth | 60 | Head | Laborer | Iowa |
| 34 | Mary C Illingworth | 61 | wife-H | None | Iowa |
| 35 | Lewis Smith | 66 | Head | Night Watch | Iowa |
| 36 | Anna Smith | 67 | wife-H | None | Iowa |
| 37 | Mattie Barouskie | 41 | Head | Laborer | Lithuania |
| 38 | Anna Barouskie | 37 | wife-H | None | Lithuania |
| 39 | Anna L Barouskie | 13 | daughter | None | Iowa |
| 40 | Walter A Barouskie | 5 | son | None | Iowa |
| 41 | Betty Jane Barouskie | 3 | daughter | None | Iowa |
| 42 | W D Mcmains | 31 | Head | Painter | Iowa |
| 43 | Lulu Mcmains | 29 | wife-H | None | Iowa |
| 44 | Robert Mcmains | 6 | son | None | Iowa |
| 45 | Ray Blanchard | 31 | Head | Laborer | Iowa |
| 46 | Rebecca Blanchard | 26 | wife-H | Laundress | Iowa |
| 47 | Mildred Blanchard | 16 | daughter | None | Iowa |
| 48 | Lester Blanchard | 14 | son | None | Iowa |
| 49 | May Blanchard | 12 | daughter | None | Iowa |
| 50 | Virginia Blanchard | 10 | daughter | None | Iowa |
Related Census Records
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)