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Bertha Lee — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Hardin-County, Iowa
Our Model Tree links this Bertha Lee across the 1920, 1930 and 1940 US Censuses in Hardin-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1890), then head of a 4-person household.
Age 50
b. ~1890
Female
Spouse
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Hardin-County, Iowa |
| Surname | Lee |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Concord Twp |
| 1935 Residence (County) | Hardin |
| Additional Details | |
| Class of Worker | NP |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Concord Twp |
| Est. Birth Year | ~1890 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Bertha | Age | Birth yr |
|---|---|---|---|---|
| Eryal Lee | Daughter | — | 19 | ~1921 |
| Robert Lee | Son | — | 25 | ~1915 |
| Bertha Lee | Spouse | — | 50 | ~1890 |
| Robert Lee | Head | — | 53 | ~1887 |
Census Appearances
1920
Hardin, Iowa
Spouse, age 30
Hardin, Iowa · implied b. ~1890 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lee |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Norwegian |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Hardin, Iowa
Other, age 40
Hardin, Iowa · implied b. ~1890 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lee |
| Given Name | Bertha L. |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 20 |
| Father's Birthplace | Norway |
| Mother's Birthplace | Norway |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Hardin-County, Iowa
Spouse, age 50
Hardin-County, Iowa · implied b. ~1890 — 4 household members
| Surname | Lee |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Concord Twp |
| 1935 Residence (County) | Hardin |
| Class of Worker | NP |
| Highest Grade | No 8 |
| 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 Bertha Lee across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Bertha Lee
Spouse · 1940 · age 50 · b. ~1890 · Iowa
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Hardin-County, Iowa
Open full size
1940 US Federal Census — Hardin-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01165-00098)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edmund Newborn | 28 | Son | — | Iowa |
| 2 | Walter Newborn | 22 | Son | — | Iowa |
| 3 | Aran O Johnson | 62 | Head | Farmer | Illinois |
| 4 | Alena Johnson | 62 | Wife | — | Illinois |
| 5 | Donald Johnson | 25 | Son | — | Iowa |
| 6 | Olaf Elwood | 51 | Head | Farmer | Norway |
| 7 | Malinda Elwood | 43 | Wife | — | Norway |
| 8 | Carroll Elwood | 13 | Son | — | Iowa |
| 9 | Mervin Elwood | 11 | Son | — | Iowa |
| 10 | Elvin Elwood | 7 | Son | — | Iowa |
| 11 | Walter O Hake | 37 | Head | Farmer | Illinois |
| 12 | Alillia Hake | 39 | Wife | — | Iowa |
| 13 | Elvin Hake | 14 | Son | — | Iowa |
| 14 | Richard Hake | 4 | Son | — | Iowa |
| 15 | Jacob J Knutson | 52 | Head | Farmer | Iowa |
| 16 | Josie Knutson | 50 | Wife | — | Iowa |
| 17 | Jaden Knutson | 25 | Son | Farmer | Iowa |
| 18 | Irvin Knutson | 15 | Son | — | Iowa |
| 19 | Dale Knutson | 11 | Son | — | Iowa |
| 20 | James Knutson | 6 | Son | — | Iowa |
| 21 | Dan Miller | 69 | Lodger | — | Norway |
| 22 | Robert O Lee | 53 | Head | Farmer | Iowa |
| 23 | Bertha Lee THIS PERSON | 50 | Wife | — | Iowa |
| 24 | Robert Jr. Lee | 25 | Son | — | Iowa |
| 25 | Eryal Lee | 19 | Daughter | Grade Teacher | Iowa |
| 26 | John J Maley | 41 | Head | Farmer | Iowa |
| 27 | Eleanora Maley | 41 | Wife | — | Iowa |
| 28 | Jesse O Hegland | 44 | Head | Farmer | Iowa |
| 29 | Selma Hegland | 38 | Wife | — | Iowa |
| 30 | Robert Hegland | 13 | Son | — | Iowa |
| 31 | Joan Hegland | 5 | Daughter | — | Iowa |
| 32 | Dean Erley | 13 | Nephew | — | Illinois |
| 33 | Rasmus Thorsheim | 68 | Head | Farmer | Norway |
| 34 | Anna Thorsheim | 66 | Wife | — | Norway |
| 35 | Elmer M Thorsheim | 26 | Son | Farmer | Iowa |
| 36 | Ida Stensland | 43 | Head | — | Iowa |
| 37 | Ruben Stensland | 17 | Son | — | Iowa |
| 38 | Russell Stensland | 17 | Son | — | Iowa |
| 39 | Barbara Stensland | 7 | Daughter | — | Iowa |
| 40 | Walter Anderson | 48 | Head | Farmer | 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)