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Margaret Bell — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Dubuque-County, Iowa
Our Model Tree links this Margaret Bell across the 1930 and 1940 US Censuses in Dubuque-County, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1900), then head of a 8-person household.
Age 40
b. ~1900
Female
Spouse
Born: Iowa
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Dubuque-County, Iowa |
| Surname | Bell |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Center Township |
| 1935 Residence (County) | Dubuque |
| Additional Details | |
| Industry | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Center Township |
| Est. Birth Year | ~1900 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Bell | Spouse | — | 40 | ~1900 |
| Andrew Bell | Son | — | 13 | ~1927 |
| Marie Bell | Daughter | — | 7 | ~1933 |
| William Bell | Son | — | 3 | ~1937 |
| Sylvester Bell | Son | — | 9 | ~1931 |
| William Bell | Head | — | 42 | ~1898 |
| Merlin Bell | Son | — | 11 | ~1929 |
| Ray Bell | Son | — | 4 | ~1936 |
Census Appearances
1930
Dubuque, Iowa
Spouse, age 30
Dubuque, Iowa · implied b. ~1900 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Boll |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 20 |
| Father's Birthplace | Switzerland |
| Mother's Birthplace | Iowa |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Dubuque-County, Iowa
Spouse, age 40
Dubuque-County, Iowa · implied b. ~1900 — 8 household members
| Surname | Bell |
| Given Name | Margaret |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Iowa |
| 1935 Residence (City) | Center Township |
| 1935 Residence (County) | Dubuque |
| Industry | 0 |
| Highest Grade | 8 |
| 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 Margaret Bell across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Margaret Bell
Spouse · 1940 · age 40 · b. ~1900 · 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 — Dubuque-County, Iowa
Open full size
1940 US Federal Census — Dubuque-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01158-00083)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Margaret A. Hause | 48 | Wife | — | Iowa |
| 42 | Ruth Alleen Hause | 23 | Daughter | School Teacher | Iowa |
| 43 | Jean M. Hause | 19 | Daughter | — | Iowa |
| 44 | Oliver S. Hodgson | 19 | Hired Hand | Farm Hand | Wisconsin |
| 45 | William Bell | 42 | Head | Farming | Iowa |
| 46 | Margaret Bell THIS PERSON | 40 | Wife | — | Iowa |
| 47 | Andrew Bell | 13 | Son | — | Iowa |
| 48 | Merlin Bell | 11 | Son | — | Iowa |
| 49 | Sylvester Bell | 9 | Son | — | Iowa |
| 50 | Marie Bell | 7 | Daughter | — | Iowa |
| 51 | Ray Bell | 4 | Son | — | Iowa |
| 52 | William Jr. Bell | 3 | Son | — | Iowa |
| 53 | Louis Schmitt | 69 | Head | Farming | Iowa |
| 54 | Mary Schmitt | 68 | Wife | — | Iowa |
| 55 | Clement Polfer | 24 | Head | Farming | Iowa |
| 56 | Angeline E. Polfer | 23 | Wife | — | North Dakota |
| 57 | William J. Waland | 47 | Head | Farming | Iowa |
| 58 | Ruby E. Waland | 48 | Wife | — | Iowa |
| 59 | Kirby W. Waland | 23 | Son | Farm Hand | Iowa |
| 60 | Mildred M. Waland | 16 | Daughter | — | Iowa |
| 61 | William E. Clark | 66 | Head | Farming | Iowa |
| 62 | Emma Clark | 63 | Sister | — | Iowa |
| 63 | Herbert R. Clark | 60 | Brother | Farming | Iowa |
| 64 | John H. Graf | 34 | Head | Farming | Iowa |
| 65 | Margaret E. Graf | 31 | Wife | Farming | Iowa |
| 66 | James J. Graf | 9 | Son | — | Iowa |
| 67 | Jeanette J. Graf | 5 | Daughter | — | Iowa |
| 68 | John Walsh | 53 | Head | Farming | Iowa |
| 69 | Alida Walsh | 44 | Wife | — | Iowa |
| 70 | Donald J. Walsh | 24 | Son | Farming | Iowa |
| 71 | Vera L. Walsh | 17 | Daughter | — | Iowa |
| 72 | Betty A. Walsh | 8 | Daughter | — | Iowa |
| 73 | Dorine Mae Walsh | 4 | Daughter | — | Iowa |
| 74 | Leroy Frost | 54 | Head | Farming | Iowa |
| 75 | Mary N. Frost | 48 | Wife | — | Iowa |
| 76 | Charles R. Frost | 22 | Son | — | Iowa |
| 77 | Straub | 50 | Head | Farming | Iowa |
| 78 | William Straub | 79 | Father | — | Iowa |
| 79 | Mary Straub | 52 | Sister | — | Iowa |
| 80 | Ottilia Straub | 45 | Sister | — | 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)