EJ
Ellen Johnson — 1930 US Census Record
Model Tree available1930 United States Federal Census · Humboldt, Iowa
Our Model Tree links this Ellen Johnson across the 1910, 1920 and 1930 US Censuses in Humboldt, Iowa (XGBoost, ~Confirmed), with identified parents John & C — first a daughter (b.~1910), then head of a 6-person household.
Age 20
b. ~1910
Female
Daughter
Born: Iowa
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Humboldt, Iowa |
| Surname | Johnson |
| Given Name | Ellen M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Iowa |
| Additional Details | |
| Occupation | Housekeeper |
| Industry | Private family |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Housekeeper |
| Township / Ward | Beaver Township |
| Est. Birth Year | ~1910 |
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 1930 census.
| Name | Relation to head | Relative to Ellen | Age | Birth yr |
|---|---|---|---|---|
| Ellen Johnson | Daughter | — | 20 | ~1910 |
| Mildred Johnson | Daughter | — | 7 | ~1923 |
| C Johnson | Head | — | 53 | ~1877 |
| George Johnson | Son | — | 16 | ~1914 |
| Johnny Johnson | Son | — | 10 | ~1920 |
| Hulda Johnson | Spouse | — | 42 | ~1888 |
Census Appearances
1910
Humboldt, Iowa
Daughter, age
Humboldt, Iowa · implied b. ~1910 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Ellen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Iowa |
| Speaks English | English |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Humboldt, Iowa
Daughter, age 10
Humboldt, Iowa · implied b. ~1910 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Ellen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Iowa |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Humboldt, Iowa
Daughter, age 20
Humboldt, Iowa · implied b. ~1910 — 6 household members
| Surname | Johnson |
| Given Name | Ellen M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Iowa |
| Occupation | Housekeeper |
| Industry | Private family |
| Class of Worker | W |
| 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 Ellen Johnson across 3 US Census years (1910, 1920 and 1930) in Humboldt, Iowa, using XGBoost record linkage. Identified parents: father John Johnson (~0.92 confidence) and father C Johnson (~0.92 confidence) and mother Hulda Johnson (~0.92 confidence) and mother Anna Johnson (~0.92 confidence) and mother Helma Johnson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Johnson
b. ~1856
Source father
● Household
· direct · ~0.92
Father
C Johnson
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Hulda Johnson
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Anna Johnson
b. ~1893
Source mother
● Household
· direct · ~0.92
Mother
Helma Johnson
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ellen Johnson
Daughter · 1930 · age 20 · b. ~1910 · Iowa
★ You are viewing this record
Sibling
Johnny Johnson
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Johnson
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Johnson
Sibling · 1930 · age 16
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 — Humboldt, Iowa
Open full size
1930 US Federal Census — Humboldt, Iowa
Page Contents
50 people indexed on this census page (ia:1930:iowacensus00reel659:0335)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Andrew C Anderson | 28 | Nephew | Farm Laborer | Denmark |
| 2 | Arline Hutchinson | 6 | Niece | — | Missouri |
| 3 | Theodore Jensen | 44 | Head | Farmer | Denmark |
| 4 | Cecil Jensen | 40 | Wife | — | Denmark |
| 5 | Edna Jensen | 19 | Daughter | Housekeeper | Iowa |
| 6 | Edna Jensen | 12 | Daughter | — | Iowa |
| 7 | Harold Jensen | 10 | Son | — | Iowa |
| 8 | Alvin Jensen | 6 | Son | — | Minnesota |
| 9 | Betty L Jensen | 4 | Daughter | — | Iowa |
| 10 | Albert Hellickson | 32 | Head | Farmer | Illinois |
| 11 | Anna Hellickson | 27 | Wife | — | Norway |
| 12 | Betty J Hellickson | 3 | Daughter | — | Iowa |
| 13 | Harry A Koppe | 34 | Head | Farmer | Wisconsin |
| 14 | Carl J Schwab | 34 | Brother-in-law | Farm Laborer | California |
| 15 | Laura M Schwab | 33 | Sister-in-law | Housekeeper | Iowa |
| 16 | Earline L Schwab | 6 | Niece | — | Iowa |
| 17 | Ed E Koppe | 31 | Head | Farmer | Wisconsin |
| 18 | Thelma L Koppe | 23 | Wife | — | Iowa |
| 19 | Lois J Koppe | 3 | Daughter | — | Iowa |
| 20 | Mary L Koppe | 2 | Daughter | — | Iowa |
| 21 | Marjorie A Koppe | 1 | Daughter | — | Iowa |
| 22 | John W Sweeney | 49 | Head | Farmer | Iowa |
| 23 | Josephine Sweeney | 43 | Wife | — | Iowa |
| 24 | Loretta Sweeney | 16 | Daughter | — | Iowa |
| 25 | Hubert L Sweeney | 13 | Son | — | Iowa |
| 26 | Patricia J Sweeney | 9 | Daughter | — | Iowa |
| 27 | Ernest M Friedrich | 50 | Head | Minister | Saxony |
| 28 | Mary L Friedrich | 55 | Wife | — | Saxony |
| 29 | Ruth G Friedrich | 18 | Daughter | Housekeeper | Saxony |
| 30 | Paul G Friedrich | 16 | Son | — | Saxony |
| 31 | Bertha A Engel | 83 | Mother | — | Saxony |
| 32 | Amos H Lemmonig | 51 | Head | Farmer | Wisconsin |
| 33 | Frances Lemmonig | 43 | Sister | Housekeeper | Wisconsin |
| 34 | C John Johnson | 53 | Head | Farmer | Sweden |
| 35 | Hulda Johnson | 42 | Wife | — | Iowa |
| 36 | Ellen M Johnson THIS PERSON | 20 | Daughter | Housekeeper | Iowa |
| 37 | George Johnson | 16 | Son | Farm Laborer | Iowa |
| 38 | Johnny Johnson | 10 | Son | — | Iowa |
| 39 | Mildred Johnson | 7 | Daughter | — | Iowa |
| 40 | Albert Van Driel | 44 | Head | Farmer | Iowa |
| 41 | Ida A Van Driel | 35 | Wife | — | Illinois |
| 42 | Robert D Koppe | 56 | Head | Farmer | Iowa |
| 43 | Emma A Koppe | 45 | Wife | — | Iowa |
| 44 | Harold G Koppe | 13 | Son | Farm Laborer | Iowa |
| 45 | Roberta M Koppe | 8 | Daughter | — | Iowa |
| 46 | Carrie Tremere | 66 | Servant | Housekeeper | Wisconsin |
| 47 | August F Schulz | 53 | Head | Farmer | Iowa |
| 48 | Anna A Schulz | 53 | Wife | — | Germany |
| 49 | Willie Johnson | 43 | Head | Farmer | Holland |
| 50 | Margaret Johnson | 54 | Wife | — | Iowa |
Pedigree Summary
Ellen + 3 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
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)