MP
Mary Pollock — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Humboldt, Iowa
Our Model Tree links this Mary Pollock across the 1900, 1910 and 1920 US Censuses in Humboldt, Iowa (XGBoost, ~Confirmed) — first a spouse (b.~1864), then head of a 4-person household.
Age 56
b. ~1864
Female
Spouse
Born: New York
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Humboldt, Iowa |
| Surname | Pollock |
| Given Name | Mary A |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
| Township / Ward | Pioneer Town |
| Est. Birth Year | ~1864 |
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 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Harry Pollock | Son | — | 21 | ~1899 |
| Mary Pollock | Spouse | — | 56 | ~1864 |
| Ruth Pollock | Spouse | — | 19 | ~1901 |
| David Pollock | Head | — | 57 | ~1863 |
Census Appearances
1900
Humboldt, Iowa
Spouse, age 37
Humboldt, Iowa · implied b. ~1863 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Pollock |
| Given Name | Maria |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Married |
| Birthplace | New York |
| Birth Month | Nov |
| Birth Year | 1863 |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | New York |
| Birth Country | United States |
| Birthplace (normalized) | new york |
1910
Humboldt, Iowa
Spouse, age 46
Humboldt, Iowa · implied b. ~1864 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Pollock |
| Given Name | Mary A |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 46 |
| Marital Status | Married |
| Birthplace | New York |
| Years Married | 26 |
| Children Born | 3 |
| Children Living | 3 |
| 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
Humboldt, Iowa
Spouse, age 56
Humboldt, Iowa · implied b. ~1864 — 4 household members
| Surname | Pollock |
| Given Name | Mary A |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 56 |
| Marital Status | Married |
| Birthplace | New York |
| Father's Birthplace | New York |
| Mother's Birthplace | New York |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| 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 Pollock across 3 US Census years (1900, 1910 and 1920) in Humboldt, Iowa, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Pollock
Spouse · 1920 · age 56 · b. ~1864 · Iowa
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Humboldt, Iowa
Open full size
1920 US Federal Census — Humboldt, Iowa
Page Contents
34 people indexed on this census page (ia:1920:14thcensusofpopu494unit:1182)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Millie L Dean | 13 | Grand Son | — | Iowa |
| 52 | Donald M Dean | 11 | Grand son | — | Iowa |
| 53 | John W Tryeson | 57 | Head | — | Indiana |
| 54 | Mary Tryeson | 48 | Wife | Agent | Iowa |
| 55 | Roland S Tryeson | 15 | Son | — | Iowa |
| 56 | Marjorie J Tryeson | 12 | Daughter | — | Iowa |
| 57 | Charlie F Wittman | 50 | Head | Grain Dealer | Illinois |
| 58 | Florence M Wittman | 50 | Wife | — | Illinois |
| 59 | Mary P Wittman | 73 | Mother | — | New York |
| 60 | Leonard F Wittman | 24 | Son | Implement D | Illinois |
| 61 | Howard D Wittman | 20 | Son | Mechanic | Iowa |
| 62 | Arthur T Wittman | 16 | Son | At School | Iowa |
| 63 | David Pollock | 57 | Head | Retired | Canada |
| 64 | Mary A Pollock THIS PERSON | 56 | Wife | — | New York |
| 65 | Harry G Pollock | 21 | Son | Harness Maker | Iowa |
| 66 | Ruth Pollock | 19 | Wife | — | New York |
| 67 | Albert E King | 43 | Head | Grain Buyer | Minnesota |
| 68 | Minnie M King | 43 | Wife | — | Minnesota |
| 69 | Jasper W King | 14 | Son | — | Minnesota |
| 70 | Howard H King | 12 | Son | — | Minnesota |
| 71 | Minnie V King | 10 | Daughter | — | Minnesota |
| 72 | Eugene F King | 8 | Son | — | Minnesota |
| 73 | Arthur W King | 3 | Son | — | Iowa |
| 74 | Lois M King | 2 | Daughter | — | Iowa |
| 75 | Anita P King | 0 | Daughter | — | Iowa |
| 76 | Vola Mc Cane | 25 | Head | School Teacher | Minnesota |
| 77 | Addison D Mc Kinney | 31 | Head | Harness Maker | Kansas |
| 78 | William A Reeves | 57 | Head | Drayman | Illinois |
| 79 | Delia A Reeves | 58 | Wife | — | Illinois |
| 80 | Wallace E Lockard | 48 | Head | Printer | Iowa |
| 81 | Ora M Lockard | 40 | Wife | — | Iowa |
| 82 | Fred D Forrest | 48 | Head | Carpenter | Minnesota |
| 83 | Emil A Wittman | 35 | Head | Farm Hand | Illinois |
| 84 | Frank Strong | 52 | Head | Carpenter | Pennsylvania |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)