MC
Mary Crowley — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Alameda, California
Our Model Tree links this Mary Crowley across the 1920 and 1930 US Censuses in Alameda, California (XGBoost, ~Confirmed) — first a spouse (b.~1859), then head of a 7-person household.
Age 71
b. ~1859
Female
Spouse
Born: California
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Alameda, California |
| Surname | Crowley |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 71 |
| Marital Status | Married |
| Birthplace | California |
| Age at First Marriage | 35 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Berkeley City |
| Est. Birth Year | ~1859 |
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 |
|---|---|---|---|---|
| Mary Crowley | Spouse | — | 71 | ~1859 |
| Anna Crowley | Daughter | — | 36 | ~1894 |
| Josephine Crowley | Daughter | — | 34 | ~1896 |
| Grace Crowley | Daughter | — | 32 | ~1898 |
| Dennis Crowley | Son | — | 34 | ~1896 |
| Dennis Crowley | Head | — | 82 | ~1848 |
| Ella Crowley | Daughter | — | 39 | ~1891 |
Census Appearances
1920
Alameda, California
Spouse, age 59
Alameda, California · implied b. ~1861 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Crowley |
| Given Name | Mary A |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 59 |
| Marital Status | Married |
| Birthplace | California |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Alameda, California
Spouse, age 71
Alameda, California · implied b. ~1859 — 7 household members
| Surname | Crowley |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 71 |
| Marital Status | Married |
| Birthplace | California |
| Age at First Marriage | 35 |
| Father's Birthplace | Irish Free State |
| Mother's Birthplace | Irish Free State |
| Can Read/Write | Yes |
| 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 Crowley across 2 US Census years (1920 and 1930) in Alameda, California, using XGBoost record linkage.
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This person
Anchor record
Mary Crowley
Spouse · 1930 · age 71 · b. ~1859 · California
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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:californiacensus00reel110:0631)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jack Moskovitz | 44 | Head | Civil Engr | United States |
| 2 | Amy Moskovitz | 43 | Wife | — | United States |
| 3 | Jack Moskovitz | 19 | Son | — | California |
| 4 | John Moskovitz | 17 | Son | — | California |
| 5 | Andrew Holland | 84 | Father in law | — | Germany |
| 6 | John Inlow | 43 | Head | Machinist | California |
| 7 | Elsie Inlow | 43 | Wife | — | Germany |
| 8 | Fred Inlow | 18 | Son | — | California |
| 9 | Agnes Inlow | 15 | Daughter | — | California |
| 10 | Alice Inlow | 5 | Daughter | — | California |
| 11 | Carl S. Olsen | 83 | Head | — | Norway |
| 12 | Anna Olsen | 65 | Wife | — | Norway |
| 13 | Jane D. Laguens | 48 | Daughter | — | Missouri |
| 14 | Oscar Lunk | 21 | Son | Carpenter | California |
| 15 | George Mac Lean | 40 | Head | Salesman | New Jersey |
| 16 | Martha Mac Lean | 28 | Wife | — | California |
| 17 | Donald Mac Lean | 4 | Son | — | California |
| 18 | Herman Olson | 43 | Head | Foreman | Sweden |
| 19 | Alma Olson | 50 | Wife | — | Sweden |
| 20 | Margaret Anderson | 31 | Step daughter | Bookkeeper | New York |
| 21 | Alice Anderson | 21 | Step daughter | Stenographer | New York |
| 22 | Dennis Crowley | 82 | Head | — | Irish Free State |
| 23 | Mary Crowley THIS PERSON | 71 | Wife | — | California |
| 24 | Ella F. Crowley | 39 | Daughter | Teacher | California |
| 25 | Anna G. Crowley | 36 | Daughter | Teacher | California |
| 26 | Dennis H. Crowley | 34 | Son | Teacher | California |
| 27 | Josephine Crowley | 34 | Daughter | Accountant | California |
| 28 | Grace Crowley | 32 | Daughter | Teacher | California |
| 29 | Mary C. Beebe | 52 | Head | Saleslady | New York |
| 30 | William Beebe | 27 | Son | Deliveryman | California |
| 31 | Thaddeus Marks | 32 | Head | Clerk | California |
| 32 | Enid Marks | 30 | Wife | Clerk | California |
| 33 | Mary S. Duxbury | 47 | Head | — | Virginia |
| 34 | William Duxbury | 21 | Son | — | New York |
| 35 | Isaac S. Hall | 47 | Head | — | South Carolina |
| 36 | Lucile Hall | 17 | Daughter | — | California |
| 37 | June Hall | 15 | Daughter | — | California |
| 38 | Iona Pitman | 27 | Daughter | Saleslady | California |
| 39 | Dewey Sanders | 31 | Boarder | Baker | Arkansas |
| 40 | Tillman Schlagter | 44 | Head | Housekeeper | Illinois |
| 41 | Till Jr. Schlagter | 19 | Son | Order Clerk | Illinois |
| 42 | William Schlagter | 17 | Son | — | Illinois |
| 43 | Anna Wilderick | 52 | Sister | Nurse | Illinois |
| 44 | Marie Wilderick | 50 | Sister | Packer | Illinois |
| 45 | John Schlagter | 10 | Son | — | Illinois |
| 46 | Alvin J. Lightfoot | 40 | Head | Auto Mechanic | Ohio |
| 47 | Lois Lightfoot | 30 | Wife | — | California |
| 48 | Russell Lightfoot | 15 | Son | — | California |
| 49 | Clifford Laskey | 29 | Head | Baker | Massachusetts |
| 50 | Dorothy Laskey | 23 | Wife | — | Washington |
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)