MJ
Mildred Johnson — 1930 US Census Record
Model Tree available1930 United States Federal Census · Polk, Iowa
Our Model Tree links this Mildred Johnson across the 1910, 1920 and 1930 US Censuses in Polk, Iowa (XGBoost, ~Confirmed), with identified parents Axel & Axel — first a daughter (b.~1905), then head of a 5-person household.
Age 25
b. ~1905
Female
Daughter
Born: Iowa
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Polk, Iowa |
| Surname | Johnson |
| Given Name | Mildred G. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Mississippi |
| Additional Details | |
| Occupation | Nurse |
| Industry | Private homes |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Nurse |
| Township / Ward | Webster Township |
| Est. Birth Year | ~1905 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mildred | Age | Birth yr |
|---|---|---|---|---|
| Mildred Johnson | Daughter | — | 25 | ~1905 |
| Lillian Johnson | Daughter | — | 11 | ~1919 |
| Axel Johnson | Head | — | 50 | ~1880 |
| Richard Johnson | Son | — | 8 | ~1922 |
| Helen Johnson | Spouse | — | 46 | ~1884 |
Census Appearances
1910
Polk, Iowa
Daughter, age 5
Polk, Iowa · implied b. ~1905 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Mildred |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Swed. Swedish |
| Mother's Birthplace | Mississippi |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Polk, Iowa
Daughter, age 15
Polk, Iowa · implied b. ~1905 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Mildred |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Mississippi |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Polk, Iowa
Daughter, age 25
Polk, Iowa · implied b. ~1905 — 5 household members
| Surname | Johnson |
| Given Name | Mildred G. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Mississippi |
| Occupation | Nurse |
| Industry | Private homes |
| 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 Mildred Johnson across 3 US Census years (1910, 1920 and 1930) in Polk, Iowa, using XGBoost record linkage. Identified parents: father Axel Johnson (~0.92 confidence) and father Axel Johnson (~0.92 confidence) and mother Helen Johnson (~0.92 confidence) and mother Helen Johnson (~0.92 confidence) and mother Lillie Johnson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Axel Johnson
b. ~1874
Source father
● Household
· direct · ~0.92
Father
Axel Johnson
b. ~1880
Source father
● Household
· direct · ~0.92
Mother
Helen Johnson
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Helen Johnson
b. ~1884
Source mother
● Household
· direct · ~0.92
Mother
Lillie Johnson
b. ~1883
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mildred Johnson
Daughter · 1930 · age 25 · b. ~1905 · Iowa
★ You are viewing this record
Sibling
Richard Johnson
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lillian Johnson
Sibling · 1930 · age 11
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:iowacensus00reel678:0504)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Alpha E. Can'T | 38 | Wife | — | Iowa |
| 52 | Carroll J. Can'T | 12 | Son | — | Iowa |
| 53 | Andrew F. Can'T | 8 | Son | — | Iowa |
| 54 | Marian A. Can'T | 5 | Daughter | — | Iowa |
| 55 | Silas Saffell | 73 | Head | Repairman | Missouri |
| 56 | Stuart Hervey | 35 | Head | Truck Driver | Kentucky |
| 57 | Marguerita Hervey | 35 | Wife | — | Iowa |
| 58 | William R. Hervey | 11 | Son | — | Iowa |
| 59 | Bige C. Hervey | 10 | Son | — | Iowa |
| 60 | Thomas M. Wilson | 65 | Head | Freight Agent | Indiana |
| 61 | Catherine M. Wilson | 60 | Wife | — | Iowa |
| 62 | John P. Cunningham | 30 | Head | Dairyman | Missouri |
| 63 | Marie Cunningham | 31 | Wife | — | Iowa |
| 64 | Clyde E. Hunt | 52 | Head | Proprietor | Iowa |
| 65 | Johanna Hunt | 44 | Wife | — | Germany |
| 66 | Kenneth Shiffer | 24 | Head | Laborer | Iowa |
| 67 | June G. Shiffer | 24 | Wife | Cosmetologist | Iowa |
| 68 | Robert P. Chaney | 72 | Grandfather | — | Ohio |
| 69 | Axel V. Johnson | 50 | Head | Laborer | Sweden |
| 70 | Helen D. Johnson | 46 | Wife | — | Mississippi |
| 71 | Mildred G. Johnson THIS PERSON | 25 | Daughter | Nurse | Iowa |
| 72 | Lillian H. Johnson | 11 | Daughter | — | Iowa |
| 73 | Richard B. Johnson | 8 | Son | — | Iowa |
| 74 | Charles C. Fisher | 47 | Head | Bus Driver | Germany |
| 75 | Emma L. Fisher | 38 | Wife | — | Canada-English |
| 76 | Irene L. Fisher | 10 | Daughter | — | Iowa |
| 77 | Joseph Zibert | 47 | Head | Miner | Jugoslavia |
| 78 | Anna Zibert | 38 | Wife | — | Jugoslavia |
| 79 | Anna B. Zibert | 17 | Daughter | — | Jugoslavia |
| 80 | Joseph H. Zibert | 15 | Son | — | Iowa |
| 81 | Mattie F. Zibert | 13 | Daughter | — | Iowa |
| 82 | Leo F. Zibert | 7 | Son | — | Iowa |
| 83 | Peter Lukonovich | 38 | Boarder | Miner | Jugoslavia |
| 84 | Glenn Dilley | 37 | Head | Laborer | Iowa |
| 85 | Hazel Dilley | 36 | Wife | — | Iowa |
| 86 | Jack E. Dilley | 3 | Son | — | Iowa |
| 87 | Alvin Cummings | 60 | Head | Laborer | Iowa |
| 88 | Frank L. Longa | 52 | Head | Gardener | Italy |
| 89 | Anna Longa | 33 | Wife | — | Ohio |
| 90 | Joseph F. Longa | 23 | Son | Printer | Ohio |
| 91 | Marie Longa | 24 | Daughter | File Clerk | Indiana |
| 92 | Josephine Longa | 15 | Daughter | — | Ohio |
| 93 | Jordan M. Longa | 14 | Daughter | — | Iowa |
| 94 | Frances A. Longa | 11 | Daughter | — | Iowa |
| 95 | F. Dwight Standers | 32 | Head | Manager | Iowa |
| 96 | Rhea Standers | 26 | Wife | — | Iowa |
| 97 | Corrine Standers | 7 | Daughter | — | Iowa |
| 98 | Virginia Standers | 5 | Daughter | — | Iowa |
| 99 | Vernon Robison | 24 | Roomer | Laborer | Iowa |
| 100 | Mabb Rittgers | 53 | Head | Proprietor | Illinois |
Pedigree Summary
Mildred + 2 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)