MC
Mary Carey — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Alameda, California
Our Model Tree links this Mary Carey across the 1930 and 1940 US Censuses in Alameda, California (XGBoost, ~Confirmed) — first a daughter (b.~1918), then head of a 8-person household.
Age 12
b. ~1918
Female
Daughter
Born: California
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Alameda, California |
| Surname | Carey |
| Given Name | Mary F. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Oakland City Pt |
| Est. Birth Year | ~1918 |
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.
8 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Catherine Carey | Daughter | — | 14 | ~1916 |
| Mary Carey | Daughter | — | 12 | ~1918 |
| Virginia Carey | Daughter | — | 6 | ~1924 |
| Thomas Carey | Head | — | 44 | ~1886 |
| Hazel Carey | Other | — | 47 | ~1883 |
| Thomas Carey | Son | — | 10 | ~1920 |
| Hugh Carey | Son | — | 6 | ~1924 |
| Francis Carey | Son | — | 8 | ~1922 |
Census Appearances
1930
Alameda, California
Daughter, age 12
Alameda, California · implied b. ~1918 — 8 household members
| Surname | Carey |
| Given Name | Mary F. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Alameda-County, California
Daughter, age 23
Alameda-County, California · implied b. ~1917 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carey |
| Given Name | Margaret M |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | City of Oakland |
| 1935 Residence (County) | Alameda |
| Occupation | New worker |
| Hours Worked | 52 |
| Income (1939) | 0 |
| Highest Grade | No 4 |
| 1935 Residence | Same house |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
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 Carey across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Carey
Daughter · 1930 · age 12 · b. ~1918 · California
★ You are viewing this record
Sibling
Catherine Carey
Sibling · 1930 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Carey
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Carey
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Virginia Carey
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hugh Carey
Sibling · 1930 · age 6
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 — Alameda, California
Open full size
1930 US Federal Census — Alameda, California
Page Contents
50 people indexed on this census page (ia:1930:15thcensuspopula102unit:0134)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Petro Etcheverry | 57 | Head | Laborer | France |
| 52 | Marie Etcheverry | 55 | Wife | — | France |
| 53 | Josephine Courtois | 69 | Head-H | — | France |
| 54 | Arthur Schimmeyer | 55 | Roomer | Peddler | Canada English |
| 55 | Hugh Leonard | 81 | Head | Laborer | Irish Free State |
| 56 | Mary Leonard | 44 | Daughter | — | California |
| 57 | Annie Hanrahan | 48 | Cousin | Dressmaker | Nevada |
| 58 | Flynn Hughes | 21 | Roomer | Bookkeeper | New York |
| 59 | Hannah Leonard | 68 | Sister | — | Irish Free State |
| 60 | Thomas L. Carey | 44 | Head | Painter | California |
| 61 | Hazel Carey | 47 | Wife-H | — | California |
| 62 | Catherine Carey | 14 | Daughter | — | California |
| 63 | Mary F. Carey THIS PERSON | 12 | Daughter | — | California |
| 64 | Thomas P. Carey | 10 | Son | — | California |
| 65 | Francis J. Carey | 8 | Son | — | California |
| 66 | Hugh L. Carey | 6 | Son | — | California |
| 67 | Virginia E. Carey | 6 | Daughter | — | California |
| 68 | George W. Ledgett | 67 | Head | — | Wisconsin |
| 69 | May Harris | 55 | Sister-H | Waitress | California |
| 70 | Anthony J. Cassell | 27 | Head-H | Fitter & Welder | Irish Free State |
| 71 | Benita Altman | 36 | Head-H | — | Germany |
| 72 | Paul Altman | 18 | Son | — | California |
| 73 | Verna Altman | 15 | Daughter | — | California |
| 74 | Iona Altman | 14 | Daughter | — | California |
| 75 | Woodrow Altman | 13 | Son | — | California |
| 76 | Theodore Altman | 7 | Son | — | California |
| 77 | Ruth Altman | 3 | Daughter | — | California |
| 78 | Milda Altman | 25 | Sister | Stock Clerk | Germany |
| 79 | Emma Westland | 54 | Head-HR | — | Missouri |
| 80 | Emil G. Westland | 32 | Son | Machinist | Missouri |
| 81 | Ernest E. Westland | 29 | Son | Carpet Layer | Minnesota |
| 82 | John C. Westland | 27 | Son | Pattern Maker | Washington |
| 83 | Celestina Lulici | 55 | Head-H | Retail Merchant | Italy |
| 84 | Mario Lulici | 34 | Son | Laborer | California |
| 85 | Louis Lulici | 24 | Son | Truck Driver | California |
| 86 | Archie M. Hickey | 39 | Head | Operator | Kansas |
| 87 | Edna Hickey | 41 | Wife-H | — | Kansas |
| 88 | Vera Hickey | 13 | Daughter | — | California |
| 89 | Archie Jr. Hickey | 9 | Son | — | California |
| 90 | William H. Hickey | 65 | Father | — | Kansas |
| 91 | Edmund Mcadams | 65 | Head | Laborer | California |
| 92 | Ada Mcadams | 66 | Wife-H | — | California |
| 93 | Mae Mead | 23 | Granddaughter | Bookkeeper | California |
| 94 | John T. Quinn | 74 | Head | — | Irish Free State |
| 95 | Mary J. Quinn | 64 | Wife-H | — | Australia |
| 96 | Annie M. Thompson | 47 | Daughter | — | California |
| 97 | James J. Quinn | 41 | Son | Conductor | California |
| 98 | Patricia Thompson | 12 | Granddaughter | — | California |
| 99 | Aurora Johns | 40 | Head-H | Cutter | California |
| 100 | Harry Johns | 19 | Son | — | California |
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)