MP
Mary Pollock — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Pocahontas, Iowa
Our Model Tree links this Mary Pollock across the 1920 and 1930 US Censuses in Pocahontas, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1914), then head of a 6-person household.
Age 16
b. ~1914
Female
Daughter
Born: Iowa
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Pocahontas, Iowa |
| Surname | Pollock |
| Given Name | Mary M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Rolfe Town |
| Est. Birth Year | ~1914 |
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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Pollock | Daughter | — | 16 | ~1914 |
| Grant Pollock | Head | — | 65 | ~1865 |
| Marie Pollock | Spouse | — | 49 | ~1881 |
| Jeanette Pollock | Daughter | — | 14 | ~1916 |
| Robert Pollock | Son | — | 21 | ~1909 |
| Margaret Pollock | Daughter | — | 20 | ~1910 |
Census Appearances
1920
Pocahontas, Iowa
Daughter, age 6
Pocahontas, Iowa · implied b. ~1914 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Pollock |
| Given Name | Mary M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Pocahontas, Iowa
Daughter, age 16
Pocahontas, Iowa · implied b. ~1914 — 6 household members
| Surname | Pollock |
| Given Name | Mary M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| 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 Mary Pollock across 2 US Census years (1920 and 1930) in Pocahontas, Iowa, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Pollock
Daughter · 1930 · age 16 · b. ~1914 · Iowa
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Sibling
Robert Pollock
Sibling · 1930 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Margaret Pollock
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jeanette Pollock
Sibling · 1930 · age 14
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
1930 US Federal Census — Pocahontas, Iowa
Open full size
1930 US Federal Census — Pocahontas, Iowa
Page Contents
50 people indexed on this census page (ia:1930:iowacensus00reel673:0102)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Robert T. Watts | 10 | Son | — | Iowa |
| 52 | Bonnie J. Watts | 7 | Daughter | — | Iowa |
| 53 | Daniel R. Watts | 2 | Son | — | Iowa |
| 54 | Pearl White | 14 | Lodger | — | Iowa |
| 55 | Grant Pollock | 65 | Head | — | Iowa |
| 56 | Marie B. Pollock | 49 | Wife | — | Iowa |
| 57 | Robert B. Pollock | 21 | Son | — | Iowa |
| 58 | Margaret E. Pollock | 20 | Daughter | — | Iowa |
| 59 | Mary M. Pollock THIS PERSON | 16 | Daughter | — | Iowa |
| 60 | Jeanette E. Pollock | 14 | Daughter | — | Iowa |
| 61 | Charles Clifford | 74 | Head | — | New York |
| 62 | Ole G. Borch | 24 | Head | Lineman | Denmark |
| 63 | Mabel L. Borch | 22 | Wife | — | Denmark |
| 64 | Lafayette H. Shaw | 76 | Head | — | Illinois |
| 65 | Isabel J. Shaw | 68 | Wife | — | Indiana |
| 66 | George B. Hawks | 59 | Head | Proprietor | Iowa |
| 67 | Hattie M. Hawks | 56 | Wife | — | Wisconsin |
| 68 | Marguerite Hawks | 31 | Daughter | — | Iowa |
| 69 | Benjamin F. Freeman | 42 | Head | Mechanic | United States |
| 70 | Pearl Freeman | 44 | Wife | — | Iowa |
| 71 | Warren G. Freeman | 21 | Son | Carrier | Iowa |
| 72 | Gilbert L. Freeman | 14 | Son | — | Iowa |
| 73 | Doris White | 18 | Lodger | — | Iowa |
| 74 | William H. Patterson | 58 | Head | Salesman | Iowa |
| 75 | Minnie E. Patterson | 52 | Wife | — | Kansas |
| 76 | Rhoda E. Lachlan | 83 | Head | — | Indiana |
| 77 | John H. Brinkman | 46 | Head | Agent | Iowa |
| 78 | Annie F. Brinkman | 41 | Wife | — | Iowa |
| 79 | Halleck Brinkman | 16 | Son | — | Iowa |
| 80 | Helen E. Brinkman | 14 | Daughter | — | Iowa |
| 81 | William J. Brinkman | 12 | Son | — | Iowa |
| 82 | M. Elaine Brinkman | 7 | Daughter | — | Iowa |
| 83 | Anna P. Ryan | 48 | Head | Seamstress | Illinois |
| 84 | Harry K. Squires | 73 | Head | — | Iowa |
| 85 | Mary E. Squires | 72 | Wife | — | Ohio |
| 86 | Charles L. Gunderson | 70 | Head | — | Wisconsin |
| 87 | Dena O. Gunderson | 63 | Wife | — | Wisconsin |
| 88 | Belle Kirkpatrick | 64 | Head | House Keeper | Missouri |
| 89 | Ole Olsen | 55 | Lodger | Repairman | Wisconsin |
| 90 | Michael A. Mugan | 57 | Lodger | Stone Cutter | Iowa |
| 91 | Vern Peshia | 37 | Head | Mail Carrier | Iowa |
| 92 | Harriet A. Peshia | 28 | Wife | — | Iowa |
| 93 | Phyllis J. Peshia | 7 | Daughter | — | Iowa |
| 94 | Augusta Cochlin | 73 | Mother-in-law | — | Denmark |
| 95 | Marius Holt | 70 | Head | — | Denmark |
| 96 | Christine M. Holt | 47 | Daughter | — | Iowa |
| 97 | Sylvester E. Davidson | 39 | Lodger | Mechanic | Illinois |
| 98 | Harry C. Dickey | 50 | Head | Operator | Illinois |
| 99 | Ester M. Dickey | 40 | Wife | — | Illinois |
| 100 | Lucile Dickey | 12 | Daughter | — | 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)