MJ
Mildred Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Winnebago-County, Iowa
Our Model Tree links this Mildred Johnson across the 1920, 1930 and 1940 US Censuses in Winnebago-County, Iowa (XGBoost, ~Confirmed), with identified parents Ole & Olaf — first a daughter (b.~1916), then head of a 5-person household.
Age 24
b. ~1916
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Winnebago-County, Iowa |
| Surname | Johnson |
| Given Name | Mildred E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Winnebago |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Center |
| Est. Birth Year | ~1916 |
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 1940 census.
| Name | Relation to head | Relative to Mildred | Age | Birth yr |
|---|---|---|---|---|
| Berna Johnson | Daughter | — | 21 | ~1919 |
| Mildred Johnson | Daughter | — | 24 | ~1916 |
| Ole Johnson | Head | — | 50 | ~1890 |
| Robert Johnson | Son | — | 11 | ~1929 |
| Agnes Johnson | Spouse | — | 46 | ~1894 |
Census Appearances
1920
Winnebago, Iowa
Daughter, age 4
Winnebago, Iowa · implied b. ~1916 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Mildred E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Norway |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Winnebago, Iowa
Daughter, age 14
Winnebago, Iowa · implied b. ~1916 — 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 | 14 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Norway |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Winnebago-County, Iowa
Daughter, age 24
Winnebago-County, Iowa · implied b. ~1916 — 5 household members
| Surname | Johnson |
| Given Name | Mildred E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Winnebago |
| Income (1939) | 0 |
| Highest Grade | Hs 4 |
| 1935 Residence | Iowa |
| 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 (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Ole Johnson (~0.92 confidence) and father Olaf Johnson (~0.92 confidence) and father Ole Johnson (~0.92 confidence) and mother Agnes Johnson (~0.92 confidence) and mother Agnes Johnson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Ole Johnson
b. ~1890
Source father
● Household
· direct · ~0.92
Father
Olaf Johnson
b. ~1891
Source father
● Household
· direct · ~0.92
Father
Ole Johnson
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Agnes Johnson
b. ~1894
Source mother
● Household
· direct · ~0.92
Mother
Agnes Johnson
b. ~1894
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mildred Johnson
Daughter · 1940 · age 24 · b. ~1916 · Iowa
★ You are viewing this record
Sibling
Robert Johnson
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Berna Johnson
Sibling · 1940 · age 21
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 — Winnebago-County, Iowa
Open full size
1940 US Federal Census — Winnebago-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01213-00111)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Beverly D. Fjelstad | 2 | Daughter | — | Iowa |
| 42 | Ole S. M. Johnson | 50 | Head | Farmer | Norway |
| 43 | Agnes E. Johnson | 46 | Wife | — | Iowa |
| 44 | Mildred E. Johnson THIS PERSON | 24 | Daughter | — | Iowa |
| 45 | Berna R. Johnson | 21 | Daughter | — | Iowa |
| 46 | Robert D. Johnson | 11 | Son | — | Iowa |
| 47 | Oscar C. Jordahl | 33 | Head | Farmer | Wisconsin |
| 48 | Olga B. Jordahl | 30 | Wife | — | Iowa |
| 49 | Burnell H. Jordahl | 8 | Son | — | Iowa |
| 50 | Jolaine B. Jordahl | 6 | Daughter | — | Iowa |
| 51 | Carl L. Monson | 36 | Head | Farmer | Iowa |
| 52 | Fern L. Monson | 29 | Wife | — | Iowa |
| 53 | Arlene G. Monson | 11 | Daughter | — | Iowa |
| 54 | Maxine R. Monson | 9 | Daughter | — | Iowa |
| 55 | Carole F. Monson | 7 | Daughter | — | Iowa |
| 56 | Bonnie L. Monson | 5 | Daughter | — | Iowa |
| 57 | Marvin D. Monson | 4 | Son | — | Iowa |
| 58 | Roger D. Monson | 0 | Son | — | Iowa |
| 59 | Otto S. Filo | 36 | Head | Farmer | Iowa |
| 60 | Lillian B. Filo | 31 | Wife | — | Iowa |
| 61 | Waldo L. Filo | 12 | Son | — | Iowa |
| 62 | Marlo T. Filo | 9 | Son | — | Iowa |
| 63 | Lavonne O. Filo | 5 | Daughter | — | Iowa |
| 64 | Elvira S. Filo | 1 | Daughter | — | Iowa |
| 65 | Palmer A. Ingebretson | 56 | Head | Farmer | Iowa |
| 66 | Josie C. Ingebretson | 60 | Sister | — | Iowa |
| 67 | Ingvald R. Wuberg | 31 | Hired hand | Farm Laborer | Iowa |
| 68 | Clarence D. Flugum | 36 | Head | Farmer | Iowa |
| 69 | Myrtle J. Flugum | 25 | Wife | — | Iowa |
| 70 | Bernard D. Flugum | 8 | Son | — | Iowa |
| 71 | Ardys L. Flugum | 5 | Daughter | — | Iowa |
| 72 | Marilyn D. Flugum | 3 | Daughter | — | Iowa |
| 73 | Leandra R. Flugum | 1 | Daughter | — | Iowa |
| 74 | Joseph G. Flugum | 40 | Head | Farmer | Iowa |
| 75 | Gena T. Flugum | 32 | Wife | — | Iowa |
| 76 | Shirley J. Flugum | 9 | Daughter | — | Iowa |
| 77 | Betty J. Flugum | 5 | Daughter | — | Iowa |
| 78 | Reuben H. Escherich | 29 | Head | Farmer | Iowa |
| 79 | Anna Escherich | 30 | Wife | — | Iowa |
| 80 | Robert A. Escherich | 0 | Son | — | Iowa |
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 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)