MR
Mary Rice — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Polk, Iowa
Our Model Tree links this Mary Rice across the 1920 and 1930 US Censuses in Polk, Iowa (XGBoost, ~Confirmed) — first a daughter (b.~1911), then head of a 10-person household.
Age 19
b. ~1911
Female
Daughter
Born: Iowa
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Polk, Iowa |
| Surname | Rice |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 17 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Kansas |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Bloomfield Twps Part |
| Est. Birth Year | ~1911 |
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.
10 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Lilly Rice | Daughter | — | 15 | ~1915 |
| Maxine Rice | Daughter | — | 17 | ~1913 |
| Bettie Rice | Daughter | — | 6 | ~1924 |
| Maud Rice | Daughter | — | 12 | ~1918 |
| Mary Rice | Daughter | — | 19 | ~1911 |
| Charles Rice | Head | — | 46 | ~1884 |
| James Rice | Son | — | 4 | ~1926 |
| Vernon Rice | Son | — | 21 | ~1909 |
| Charles Rice | Son | — | 10 | ~1920 |
| Ethel Rice | Spouse | — | 39 | ~1891 |
Census Appearances
1920
Polk, Iowa
Other, age 8
Polk, Iowa · implied b. ~1912 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Rice |
| Given Name | Mary |
| Relationship to Head | Daughter in law |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Polk, Iowa
Daughter, age 19
Polk, Iowa · implied b. ~1911 — 10 household members
| Surname | Rice |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Married |
| Birthplace | Iowa |
| Age at First Marriage | 17 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Kansas |
| 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 Rice across 2 US Census years (1920 and 1930) in Polk, Iowa, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Rice
Daughter · 1930 · age 19 · b. ~1911 · Iowa
★ You are viewing this record
Sibling
James Rice
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Maud Rice
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Maxine Rice
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Rice
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lilly Rice
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bettie Rice
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Vernon Rice
Sibling · 1930 · age 21
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 — Polk, Iowa
Open full size
1930 US Federal Census — Polk, Iowa
Page Contents
50 people indexed on this census page (ia:1930:iowacensus00reel673:0453)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Harold Hampton | 21 | Son | — | Iowa |
| 52 | Clarence Johnson | 37 | Head | Clerk | Iowa |
| 53 | Emma Johnson | 30 | Wife | — | Sweden |
| 54 | Arthur Johnson | 6 | Son | — | Iowa |
| 55 | Walter Johnson | 3 | Son | — | Iowa |
| 56 | John Anderson | 65 | Head | — | Sweden |
| 57 | Sina Anderson | 57 | Wife | — | Norway |
| 58 | E. Well L. Miller | 36 | Head | Carpenter | Nebraska |
| 59 | Anna Miller | 35 | Wife | Dressmaker | Iowa |
| 60 | Edna I. Miller | 12 | Daughter | — | Wyoming |
| 61 | Mayon E. Miller | 10 | Daughter | — | Wyoming |
| 62 | Dorothy S. Miller | 9 | Daughter | — | Wyoming |
| 63 | Hattie Pattie | 69 | Mother-in-law | — | Massachusetts |
| 64 | George Gruber | 55 | Head | Miner | Iowa |
| 65 | Nellie M. Gruber | 49 | Wife | — | Illinois |
| 66 | Ralph Gruber | 9 | Son | — | Iowa |
| 67 | Sidney W. Marshal | 29 | Son-in-law | Articulator | Iowa |
| 68 | Hazel L. Marshal | 31 | Daughter | — | Iowa |
| 69 | Charles Rice | 46 | Head | Miner | Iowa |
| 70 | Ethel Rice | 39 | Wife | — | Kansas |
| 71 | Vernon Rice | 21 | Son | Laborer | Iowa |
| 72 | Mary Rice THIS PERSON | 19 | Daughter | — | Iowa |
| 73 | Maxine Rice | 17 | Daughter | — | Iowa |
| 74 | Lilly S. Rice | 15 | Daughter | — | Iowa |
| 75 | Maud S. Rice | 12 | Daughter | — | Iowa |
| 76 | Charles A. Rice | 10 | Son | — | Iowa |
| 77 | Bettie Rice | 6 | Daughter | — | Iowa |
| 78 | James Rice | 4 | Son | — | Iowa |
| 79 | John W. Jordan | 59 | Head | Farmer | Iowa |
| 80 | Anna Jordan | 56 | Wife | — | Iowa |
| 81 | Benjamin F. Jordan | 82 | Father | — | Illinois |
| 82 | Guy E. Williams | 34 | Head | Conductor | Iowa |
| 83 | Lucile Williams | 29 | Wife | — | Iowa |
| 84 | Lois A. Williams | 8 | Daughter | — | Iowa |
| 85 | Nick Scavo | 30 | Head | Farmer | Italy |
| 86 | Patricia Scavo | 24 | Wife | — | Italy |
| 87 | Pauline Scavo | 17 | Daughter | — | Iowa |
| 88 | Danny C. Scavo | 15 | Son | — | Iowa |
| 89 | Lucy Scavo | 10 | Daughter | — | Iowa |
| 90 | Roy Scavo | 9 | Son | — | Iowa |
| 91 | Tony Scavo | 8 | Son | — | Iowa |
| 92 | Peter Scavo | 5 | Son | — | Iowa |
| 93 | Angelina Scavo | 1 | Daughter | — | Iowa |
| 94 | Orval Coburn | 47 | Head | Gardener | Iowa |
| 95 | Pearl A. Coburn | 44 | Wife | — | Iowa |
| 96 | Oluf Noach | 48 | Head | Cabinetmaker | Denmark |
| 97 | Jessie S. Noach | 37 | Wife | — | Nebraska |
| 98 | Elizabeth E. Noach | 4 | Daughter | — | Iowa |
| 99 | Alice H. Noach | 3 | Daughter | — | Iowa |
| 100 | John Swanson | 57 | Head | Carpenter | Sweden |
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)