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Bertha Miller — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Polk-County, Iowa
Our Model Tree links this Bertha Miller across the 1920, 1930 and 1940 US Censuses in Polk-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1883), then head of a 7-person household.
Age 57
b. ~1883
Female
Spouse
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Polk-County, Iowa |
| Surname | Miller |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Des Moines City |
| Est. Birth Year | ~1883 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Bertha | Age | Birth yr |
|---|---|---|---|---|
| Donna Northrup | Daughter | — | 8 | ~1932 |
| Barbara Northrup | Daughter | — | 9 | ~1931 |
| Elma Northrup | Daughter | — | 26 | ~1914 |
| Beverly Northrup | Daughter | — | 10 | ~1930 |
| Orlando Miller | Head | — | 57 | ~1883 |
| Orrin Miller | Son | — | 30 | ~1910 |
| Bertha Miller | Spouse | — | 57 | ~1883 |
Census Appearances
1920
Polk, Iowa
Spouse, age 36
Polk, Iowa · implied b. ~1884 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Miller |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Wisconsin |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Polk, Iowa
Spouse, age 47
Polk, Iowa · implied b. ~1883 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Miller |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 22 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Wisconsin |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Polk-County, Iowa
Spouse, age 57
Polk-County, Iowa · implied b. ~1883 — 7 household members
| Surname | Miller |
| Given Name | Bertha |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Des Moines City |
| 1935 Residence (County) | Polk |
| Class of Worker | 0 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| 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 Miller across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Bertha Miller
Spouse · 1940 · age 57 · b. ~1883 · Iowa
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Polk-County, Iowa
Open full size
1940 US Federal Census — Polk-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01197-00579)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Clara Mary Casper | 59 | Head | — | Iowa |
| 42 | Hazel L. Casper | 16 | Daughter | Library Helper | Iowa |
| 43 | Lewis C. Mayner | 86 | Head | Farmer | Indiana |
| 44 | Mina Mayner | 73 | Wife | — | Iowa |
| 45 | Frank H. Larson | 71 | Head | Laborer | Sweden |
| 46 | Thos. Howard | 39 | Head | Janitor | Iowa |
| 47 | Olive Howard | 33 | Wife | — | Iowa |
| 48 | Clarice Howard | 15 | Daughter | — | Iowa |
| 49 | Jo Ann Howard | 6 | Daughter | — | Iowa |
| 50 | James Roth | 57 | Head | Receiving Clerk | Iowa |
| 51 | Gertrude Roth | 57 | Wife | — | Iowa |
| 52 | Ralph Roth | 31 | Son | Butcher | Iowa |
| 53 | Donald Roth | 18 | Son | Salesman | Iowa |
| 54 | Aileen Roth | 15 | Daughter | — | Iowa |
| 55 | Lewis Overton | 55 | Head | Truck Driver | Iowa |
| 56 | Grace Overton | 48 | Wife | Housecleaning | Iowa |
| 57 | Dorothy Overton | 14 | Daughter | — | Minnesota |
| 58 | Lois Overton | 9 | Son | — | Minnesota |
| 59 | John Hammill | 66 | Head | Carpenter | Iowa |
| 60 | Margaret Hammill | 56 | Wife | — | Norway |
| 61 | William R. Hammill | 23 | Son | Laborer | Iowa |
| 62 | James L. Hammill | 19 | Son | — | Iowa |
| 63 | John Jr. Hammill | 17 | Son | Laborer | Iowa |
| 64 | Margaret Hammill | 13 | Daughter | — | Iowa |
| 65 | William H. Haltom | 40 | Head | Salesman | Iowa |
| 66 | Blanche Haltom | 38 | Wife | — | Iowa |
| 67 | Ramona Haltom | 20 | Daughter | Bookkeeper | Iowa |
| 68 | Ulyss J. Jr. Haltom | 18 | Son | Curb-Boy | Iowa |
| 69 | Bernadine Haltom | 11 | Daughter | — | Iowa |
| 70 | Orlando Miller | 57 | Head | Carpenter | Iowa |
| 71 | Bertha Miller THIS PERSON | 57 | Wife | — | Iowa |
| 72 | Orrin Miller | 30 | Son | Laborer | Iowa |
| 73 | Beverly Northrup | 10 | Daughter | — | Iowa |
| 74 | Barbara Northrup | 9 | Daughter | — | Iowa |
| 75 | Donna Northrup | 8 | Daughter | — | Iowa |
| 76 | Elma Northrup | 26 | Daughter | — | Iowa |
| 77 | Aubrey Williams | 31 | Head | Maintenance Wk. | Missouri |
| 78 | Bertina Williams | 32 | Wife | — | Iowa |
| 79 | Delbert Davidson | 41 | Head | Maintenance Man | Iowa |
| 80 | Lelia L. Davidson | 39 | Wife | Waitress | Illinois |
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)