BH
Bertha Hall — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Pottawattamie-County, Iowa
Our Model Tree links this Bertha Hall across the 1930 and 1940 US Censuses in Pottawattamie-County, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1929), then head of a 10-person household.
Age 11
b. ~1929
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Pottawattamie-County, Iowa |
| Surname | Hall |
| Given Name | Bertha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Council Bluffs |
| 1935 Residence (County) | Pottawattamie |
| Additional Details | |
| Highest Grade | No 5 |
| 1935 Residence | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Council Bluffs |
| Est. Birth Year | ~1929 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Bertha | Age | Birth yr |
|---|---|---|---|---|
| Bertha Hall | Daughter | — | 11 | ~1929 |
| Clarence Hall | Other | — | 36 | ~1904 |
| Marjorie Hall | Daughter | — | 13 | ~1927 |
| Margaret Hall | Daughter | — | 9 | ~1931 |
| Fred Hall | Other | — | 64 | ~1876 |
| Bonnie Hall | Daughter | — | 7 | ~1933 |
| Hazel Hall | Spouse | — | 33 | ~1907 |
| Doris Hall | Daughter | — | 15 | ~1925 |
| Ernest Hall | Head | — | 39 | ~1901 |
| Geraldine Hall | Daughter | — | 5 | ~1935 |
Census Appearances
1930
Pottawattamie, Iowa
Daughter, age 1
Pottawattamie, Iowa · implied b. ~1929 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hall |
| Given Name | Bertha |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Pottawattamie-County, Iowa
Daughter, age 11
Pottawattamie-County, Iowa · implied b. ~1929 — 10 household members
| Surname | Hall |
| Given Name | Bertha |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Council Bluffs |
| 1935 Residence (County) | Pottawattamie |
| Highest Grade | No 5 |
| 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 Bertha Hall across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Bertha Hall
Daughter · 1940 · age 11 · b. ~1929 · Iowa
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Sibling
Marjorie Hall
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Geraldine Hall
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Doris Hall
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bonnie Hall
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Hall
Sibling · 1940 · age 9
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 — Pottawattamie-County, Iowa
Open full size
1940 US Federal Census — Pottawattamie-County, Iowa
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-01199-00209)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Bertha Walton | 6 | Daughter | — | Iowa |
| 42 | Henry Mclean | 51 | Head | Seamstress | Nebraska |
| 43 | Bertha Mclean | 18 | Wife | Maid | Iowa |
| 44 | Norah Mclean | 14 | Daughter | — | Iowa |
| 45 | John Mclean | 5 | Son | — | Iowa |
| 46 | Henry Mclean | 32 | Head | Farm Laborer | Iowa |
| 47 | Ruth Mclean | 36 | Wife | — | Missouri |
| 48 | Narlene Starr | 11 | Step daughter | — | Iowa |
| 49 | Dorothy Starr | 8 | Step daughter | — | Iowa |
| 50 | Ray D Lallman | 37 | Head | Truck Driver | Iowa |
| 51 | Irene Lallman | 20 | Wife | — | Colorado |
| 52 | William Clark | 55 | Head | Labourer | Iowa |
| 53 | Cora Clark | 41 | Wife | — | Iowa |
| 54 | Evan Clark | 20 | Son | Mechanic Helper | Iowa |
| 55 | Fred Clark | 18 | Son | Laborer | Iowa |
| 56 | Vergil Clark | 15 | Son | — | Iowa |
| 57 | Bonnie Clark | 7 | Daughter | — | Iowa |
| 59 | Katie Fredrickson | 74 | Head | Housework | Denmark |
| 60 | William Mathews | 40 | Head | Mechanic Helper | Iowa |
| 61 | Jessie Mathews | 37 | Wife | — | Iowa |
| 62 | William Mathews | 18 | Son | — | Iowa |
| 63 | Harold Mathews | 17 | Son | — | Iowa |
| 64 | Lloyd Mathews | 15 | Son | — | Iowa |
| 65 | Nora Hayes | 63 | Mother in law | Housework | Iowa |
| 66 | Ernest Hall | 39 | Head | Carman Helper | Iowa |
| 67 | Hazel Hall | 33 | Wife | — | Iowa |
| 68 | Doris Hall | 15 | Daughter | — | Iowa |
| 69 | Marjorie Hall | 13 | Daughter | — | Iowa |
| 70 | Bertha Hall THIS PERSON | 11 | Daughter | — | Iowa |
| 71 | Margaret Hall | 9 | Daughter | — | Iowa |
| 72 | Bonnie Hall | 7 | Daughter | — | Iowa |
| 73 | Geraldine Hall | 5 | Daughter | — | Iowa |
| 74 | Clarence Hall | 36 | Brother | Labourer | Iowa |
| 75 | Fred Hall | 64 | Father | Blacksmith | Iowa |
| 77 | Charles Hulbert | 41 | Head | Block Laborer | Iowa |
| 78 | Pearl Hulbert | 39 | Wife | — | Nebraska |
| 79 | Ruby Hulbert | 20 | Daughter | Nya | Iowa |
| 80 | George Hulbert | 17 | Son | — | Iowa |
Related Census Records
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)