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Mary Grimes — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Providence, Rhode Island
Our Model Tree links this Mary Grimes across the 1920 and 1930 US Censuses in Providence, Rhode Island (XGBoost, ~Confirmed) — first a daughter (b.~1911), then head of a 7-person household.
Age 19
b. ~1911
Female
Daughter
Born: Rhode Island
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Providence, Rhode Island |
| Surname | Grimes |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| Father's Birthplace | Rhode Island |
| Mother's Birthplace | Rhode Island |
| Additional Details | |
| Occupation | Bookkeeper |
| Industry | Glass Works |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
| Occupation | Bookkeeper |
| Township / Ward | Providence City |
| 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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Clement Grimes | Son | — | 24 | ~1906 |
| Elizabeth Grimes | Head | — | 54 | ~1876 |
| George Grimes | Son | — | 22 | ~1908 |
| Henry Reall | Other | — | 30 | ~1900 |
| Loretta Reall | Daughter | — | 31 | ~1899 |
| Mary Grimes | Daughter | — | 19 | ~1911 |
| Margaret Grimes | Daughter | — | 17 | ~1913 |
Census Appearances
1920
Providence, Rhode …
Daughter, age 10
Providence, Rhode Island · implied b. ~1910 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Grimes |
| Given Name | Mary C |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| Father's Birthplace | Rhode Island |
| Mother's Birthplace | Rhode Island |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
1930
Providence, Rhode …
Daughter, age 19
Providence, Rhode Island · implied b. ~1911 — 7 household members
| Surname | Grimes |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Rhode Island |
| Father's Birthplace | Rhode Island |
| Mother's Birthplace | Rhode Island |
| Occupation | Bookkeeper |
| Industry | Glass Works |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Rhode Island |
| Birth Country | United States |
| Birthplace (normalized) | rhode island |
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 Grimes across 2 US Census years (1920 and 1930) in Providence, Rhode Island, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Grimes
Daughter · 1930 · age 19 · b. ~1911 · Rhode Island
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Sibling
Margaret Grimes
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Loretta Reall
Sibling · 1930 · age 31
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clement Grimes
Sibling · 1930 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Grimes
Sibling · 1930 · age 22
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 — Providence, Rhode Island
Open full size
1930 US Federal Census — Providence, Rhode Island
Page Contents
17 people indexed on this census page (ia:1930:15thcensus2183unit:1042)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | William Donovan | 28 | Son-in-law | Machinist | Rhode Island |
| 52 | William J. Reilly | 64 | Head | Clerk | Rhode Island |
| 53 | Annie H. Reilly | 68 | Sister-in-law | — | Rhode Island |
| 54 | Ruth Reilly | 28 | Niece | — | Rhode Island |
| 55 | Elizabeth Grimes | 54 | Head | — | Rhode Island |
| 56 | Clement Grimes | 24 | Son | Manager | Rhode Island |
| 57 | Mary E. Grimes THIS PERSON | 19 | Daughter | Bookkeeper | Rhode Island |
| 58 | Margaret G. Grimes | 17 | Daughter | — | Rhode Island |
| 59 | Henry D. Reall | 30 | Boarder | Clerk | Rhode Island |
| 60 | Loretta L. Reall | 31 | Daughter | Bookkeeper | Rhode Island |
| 61 | George Grimes | 22 | Son | — | Rhode Island |
| 62 | Ellen E. Hawkins | 47 | Head | — | Rhode Island |
| 63 | Thomas W. Hawkins | 21 | Son | Test Man | Rhode Island |
| 64 | Katherine M. Hawkins | 20 | Daughter | Stenographer | Rhode Island |
| 65 | Lazarus Hawkins | 9 | Son | — | Rhode Island |
| 66 | Thomas F. Minier | 44 | Brother | Accountant | Rhode Island |
| 67 | Frank Jr. Ducate | 12 | Son | — | Rhode Island |
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)