MH
Mary Hancock — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Polk, Iowa
Our Model Tree links this Mary Hancock across the 1900, 1910, 1920 and 1930 US Censuses in Polk, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1873), then head of a 4-person household.
Age 57
b. ~1873
Female
Spouse
Born: Wales
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Polk, Iowa |
| Surname | Hancock |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Wales |
| Year of Immigration | 1900 |
| Age at First Marriage | 20 |
| Father's Birthplace | Wales |
| Mother's Birthplace | Wales |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | Welsh |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
| Township / Ward | Des Moines City |
| Est. Birth Year | ~1873 |
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 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| John Hancock | Head | — | 53 | ~1877 |
| Mary Hancock | Spouse | — | 57 | ~1873 |
| Arthur Hancock | Son | — | 24 | ~1906 |
| Neil Hancock | Son | — | 34 | ~1896 |
Census Appearances
1900
Mahaska, Iowa
Spouse, age 29
Mahaska, Iowa · implied b. ~1871 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hancock |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Wales |
| Birth Month | Dec |
| Birth Year | 1871 |
| Year of Immigration | 1885 |
| Father's Birthplace | Wales |
| Mother's Birthplace | Wales |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
1910
Mahaska, Iowa
Spouse, age 39
Mahaska, Iowa · implied b. ~1871 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hancock |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Wales |
| Years Married | 19 |
| Children Born | 7 |
| Children Living | 7 |
| Father's Birthplace | Wales |
| Mother's Birthplace | Wales |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
1920
Polk, Iowa
Spouse, age 49
Polk, Iowa · implied b. ~1871 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Hancock |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Wales |
| Year of Immigration | 1884 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Wales |
| Mother's Birthplace | Wales |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Welsh |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
1930
Polk, Iowa
Spouse, age 57
Polk, Iowa · implied b. ~1873 — 4 household members
| Surname | Hancock |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 57 |
| Marital Status | Married |
| Birthplace | Wales |
| Year of Immigration | 1900 |
| Age at First Marriage | 20 |
| Father's Birthplace | Wales |
| Mother's Birthplace | Wales |
| Occupation | none |
| Can Read/Write | Yes |
| Mother Tongue | Welsh |
| Birth Country | Wales |
| Birthplace (normalized) | wales |
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 Hancock across 4 US Census years (1900, 1910, 1920 and 1930) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Hancock
Spouse · 1930 · age 57 · b. ~1873 · 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 — Polk, Iowa
Open full size
1930 US Federal Census — Polk, Iowa
Page Contents
50 people indexed on this census page (ia:1930:iowacensus00reel673:0834)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Floyd M Lucas | 58 | Head | Proprietor | Ohio |
| 52 | Phillip Kaster | 65 | Head | Superintendent | Germany |
| 53 | Charlotte Kaster | 53 | Wife | Clerk | Iowa |
| 54 | Henry R Jacobson | 38 | Head | Proprietor | Poland |
| 55 | Dora R Jacobson | 34 | Wife | — | Poland |
| 56 | Harold Jacobson | 13 | Son | None | Iowa |
| 57 | Bernice Jacobson | 10 | Daughter | None | Iowa |
| 58 | John Hancock | 53 | Head | Miner | Pennsylvania |
| 59 | Mary Hancock THIS PERSON | 57 | Wife | None | Wales |
| 60 | Neil Hancock | 34 | Son | Manager | Iowa |
| 61 | Arthur Hancock | 24 | Son | Pressman | Iowa |
| 62 | Edward Rudebeck | 53 | Head | Proprietor | Sweden |
| 63 | Emma Rudebeck | 43 | Wife | None | Sweden |
| 64 | Louise Rudebeck | 19 | Daughter | None | Iowa |
| 65 | Edwin Rudebeck | 12 | Son | None | Iowa |
| 66 | John W Rudebeck | 8 | Son | None | Iowa |
| 67 | Bates E Soules | 34 | Head | Proprietor | West Virginia |
| 68 | Gladys H Soules | 34 | Wife | None | Iowa |
| 69 | Jane E Soules | 3 | Son | None | Iowa |
| 70 | Ray E Jaggar | 37 | Head | Manager | Kansas |
| 71 | Iva Jaggar | 35 | Wife | None | Texas |
| 72 | Melvin W Jaggar | 13 | Son | None | Kansas |
| 73 | Ilma L Jaggar | 1 | Daughter | None | Iowa |
| 74 | Bruce S Melchi | 46 | Head | Commercial Traveler | Iowa |
| 75 | Veda Melchi | 40 | Wife | None | Missouri |
| 76 | James B Melchi | 16 | Son | None | Iowa |
| 77 | Dorothy L Melchi | 11 | Daughter | None | Iowa |
| 78 | Wayne E Moore | 23 | Head | Knitter | Iowa |
| 79 | Reta P Moore | 20 | Wife | Topper | Missouri |
| 80 | Ivor O Larson | 33 | Head | Mason | Sweden |
| 81 | Anna R Larson | 36 | Wife | None | Sweden |
| 82 | Betty J Larson | 9 | Daughter | None | Iowa |
| 83 | Morty B Brightman | 23 | — | Foreman | Iowa |
| 84 | Dorothy J Brightman | 23 | Wife | None | Iowa |
| 85 | Theodore J Brightman | 2 | Son | None | Missouri |
| 86 | Kenneth G Manson | 25 | Head | Technician | Iowa |
| 87 | Dorothy L Manson | 22 | Wife | None | Iowa |
| 88 | Kenneth J Manson | 1 | Son | None | Iowa |
| 89 | Harry B Cook | 35 | Head | Fireman | Iowa |
| 90 | Hazel B Cook | 35 | Wife | None | Iowa |
| 91 | Lyle D Cook | 17 | Son | None | Iowa |
| 92 | Earl A Cook | 13 | Son | None | Iowa |
| 93 | Donald Cook | 0 | Son | None | Iowa |
| 94 | Tompkins J Burg | 27 | Head | None | Kansas |
| 95 | Velma E Burg | 24 | Wife | None | Iowa |
| 96 | Vernon R Burg | 1 | Son | None | Iowa |
| 97 | William Martindale | 23 | Head | Window Trimmer | Iowa |
| 98 | Inez C Martindale | 25 | Wife | Bookkeeper | Iowa |
| 99 | Bessie Kopf | 50 | Wife | None | Iowa |
| 100 | Kathlyn Kopf | 15 | Daughter | None | Oregon |
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)