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Mary Bell — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Dubuque, Iowa
Our Model Tree links this Mary Bell across the 1910, 1920 and 1930 US Censuses in Dubuque, Iowa (XGBoost, ~Confirmed) — first a head (b.~1853), then head of a 3-person household.
Age 77
b. ~1853
Female
Head
Born: New York
Widowed
1930 Census Record Details
| Census Year | 1930 |
| Location | Dubuque, Iowa |
| Surname | Bell |
| Given Name | Mary J. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 77 |
| Marital Status | Widowed |
| Birthplace | New York |
| Age at First Marriage | 24 |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Additional Details | |
| Occupation | Farmer |
| Industry | Gen. farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Occupation | Farmer |
| Township / Ward | Dodge Township |
| Est. Birth Year | ~1853 |
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.
3 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Margaret Phelps | Daughter | — | 46 | ~1884 |
| Mary Bell | Head | — | 77 | ~1853 |
| O Ross | Other | — | 49 | ~1881 |
Census Appearances
1910
Dubuque, Iowa
Spouse, age 57
Dubuque, Iowa · implied b. ~1853 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bell |
| Given Name | Mary J |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | New York |
| Years Married | 26 |
| Children Born | 1 |
| Children Living | 1 |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1920
Dubuque, Iowa
Head, age 67
Dubuque, Iowa · implied b. ~1853 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Bell |
| Given Name | Mary J. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 67 |
| Marital Status | Widowed |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | Ireland |
| Occupation | Farmer |
| Industry | General farm |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1930
Dubuque, Iowa
Head, age 77
Dubuque, Iowa · implied b. ~1853 — 3 household members
| Surname | Bell |
| Given Name | Mary J. |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 77 |
| Marital Status | Widowed |
| Birthplace | New York |
| Age at First Marriage | 24 |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Occupation | Farmer |
| Industry | Gen. farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
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 Mary Bell across 3 US Census years (1910, 1920 and 1930) in Dubuque, Iowa, using XGBoost record linkage.
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This person
Anchor record
Mary Bell
Head · 1930 · age 77 · b. ~1853 · Iowa
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Dubuque, Iowa
Open full size
1930 US Federal Census — Dubuque, Iowa
Page Contents
50 people indexed on this census page (ia:1930:iowacensus00reel653:0683)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Felix Hilbert | 10 | Son | — | Iowa |
| 2 | Marion Hilbert | 7 | Daughter | — | Iowa |
| 3 | Mary Hilbert | 5 | Daughter | — | Iowa |
| 4 | Laurabelle Hilbert | 3 | Daughter | — | Iowa |
| 5 | William Hilbert | 1 | Son | — | Iowa |
| 6 | Mary J. Bell THIS PERSON | 77 | Head | Farmer | New York |
| 7 | Margaret Phelps | 46 | Daughter | Music Teacher | Iowa |
| 8 | O. Ross | 49 | Son-in-law | Commercial Traveler | Iowa |
| 9 | William Thomas | 44 | Head | Farmer | Iowa |
| 10 | Theodore Thomas | 19 | Son | Farmer | Iowa |
| 11 | Adelaide Thomas | 17 | Daughter | Farmer | Iowa |
| 12 | Raymond Hoffmann | 30 | Head | Farmer | Iowa |
| 13 | Clara Hoffmann | 25 | Wife | — | Iowa |
| 14 | Harold Hoffmann | 5 | Son | — | Iowa |
| 15 | Gerald Hoffmann | 1 | Son | — | Iowa |
| 16 | Louis Wilhelm | 34 | Head | Farmer | Iowa |
| 17 | Myrtle Wilhelm | 32 | Wife | — | Iowa |
| 18 | Lester Wilhelm | 6 | Son | — | Iowa |
| 19 | Reginald C. Thomas | 36 | Head | Farmer | Iowa |
| 20 | Lela Thomas | 38 | Wife | — | Iowa |
| 21 | Clyde M. Thomas | 16 | Son | Laborer | Iowa |
| 22 | Verona Faye Thomas | 11 | Daughter | — | Iowa |
| 23 | William J. Thomas | 8 | Son | — | Iowa |
| 24 | Martin H. Kramer | 34 | Head | Farmer | Iowa |
| 25 | Catherine Kramer | 64 | Mother | — | Iowa |
| 26 | Mathilda F. Kramer | 32 | Sister | Housekeeper | Iowa |
| 27 | Frank Olberding | 35 | Head | Farmer | Iowa |
| 28 | Cecelia Olberding | 33 | Wife | — | Iowa |
| 29 | Mercedes Olberding | 8 | Daughter | — | Iowa |
| 30 | Germaine Olberding | 7 | Daughter | — | Iowa |
| 31 | Catherine Olberding | 5 | Daughter | — | Iowa |
| 32 | Gerald Olberding | 3 | Son | — | Iowa |
| 33 | Delbert Olberding | 1 | Son | — | Iowa |
| 34 | Leo Honkamp | 18 | Boarder | Laborer | Iowa |
| 35 | William Nadermann | 36 | Head | Farmer | Iowa |
| 36 | Frances Nadermann | 40 | Wife | — | Iowa |
| 37 | Elizabeth Nadermann | 11 | Daughter | — | Iowa |
| 38 | Nadermann | 9 | Daughter | — | Iowa |
| 39 | William H. Pins | 58 | Head | Farmer | Iowa |
| 40 | Edward Pins | 25 | Son | Laborer | Iowa |
| 41 | Henry H. Clemen | 28 | Head | Farmer | Iowa |
| 42 | Edna A. Clemen | 23 | Wife | — | Iowa |
| 43 | Mary Kathryn Clemen | 2 | Daughter | — | Iowa |
| 44 | Dorothy Anne Clemen | 0 | Daughter | — | Iowa |
| 45 | J. Paul Kerwin | 40 | Boarder | Laborer | Wisconsin |
| 46 | Hugo H. Funke | 22 | Head | Farmer | Iowa |
| 47 | Regina Funke | 21 | Wife | — | Iowa |
| 48 | Augusta Funke | 60 | Mother | — | Germany |
| 49 | Anton Digman | 49 | Head | Farmer | Iowa |
| 50 | Mary Digman | 42 | Wife | — | Iowa |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1930 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)