MS
Mary Sears — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Alameda, California
Our Model Tree links this Mary Sears across the 1920 and 1930 US Censuses in Alameda, California (XGBoost, ~Confirmed) — first a spouse (b.~1869), then head of a 5-person household.
Age 61
b. ~1869
Female
Spouse
Born: California
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Alameda, California |
| Surname | Sears |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | California |
| Age at First Marriage | 19 |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | San Leandro City Part |
| Est. Birth Year | ~1869 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| John Sears | Son | — | 25 | ~1905 |
| Frank Sears | Son | — | 28 | ~1902 |
| Mary Sears | Spouse | — | 61 | ~1869 |
| Joseph Sears | Head | — | 65 | ~1865 |
| Joseph Sears | Son | — | 32 | ~1898 |
Census Appearances
1920
Alameda, California
Spouse, age 50
Alameda, California · implied b. ~1870 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Soares |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | California |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Alameda, California
Spouse, age 61
Alameda, California · implied b. ~1869 — 5 household members
| Surname | Sears |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | California |
| Age at First Marriage | 19 |
| Father's Birthplace | Portugal |
| Mother's Birthplace | Portugal |
| 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 Sears across 2 US Census years (1920 and 1930) in Alameda, California, using XGBoost record linkage.
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This person
Anchor record
Mary Sears
Spouse · 1930 · age 61 · b. ~1869 · 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:acpl_california_10_reel10:0414)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph S Hansen | 52 | Head | Salesman | Denmark |
| 2 | Agnes Hansen | 51 | Wife | — | Denmark |
| 3 | John Hansen | 15 | Son | — | California |
| 4 | William Taylor | 32 | Head | Carpenter | California |
| 5 | Irene Taylor | 31 | Wife | — | California |
| 6 | William Jr Taylor | 9 | Son | — | California |
| 7 | Robert Taylor | 7 | Son | — | California |
| 8 | Frank Mallows | 70 | Head | — | England |
| 9 | Mary Mallows | 71 | Wife | — | England |
| 10 | Frank Jr Mallows | 46 | Son | — | California |
| 11 | William Mallows | 44 | Son | — | California |
| 12 | George Mallows | 42 | Son | — | California |
| 13 | Arthur Mallows | 40 | Son | — | California |
| 14 | Alice Mallows | 38 | Daughter | — | California |
| 15 | Rose Mallows | 36 | Daughter | — | California |
| 16 | Edith Mallows | 34 | Daughter | — | California |
| 17 | Elizabeth Mallows | 32 | Daughter | — | California |
| 18 | Frederick Mccarthy | 38 | Head | Laborer | Spain |
| 19 | Mary Mccarthy | 32 | Wife | — | California |
| 20 | Frank White | 63 | Head | Manager | Portugal |
| 21 | Mary White | 51 | Wife | — | California |
| 22 | Frank Jr White | 28 | Son | Mechanic | California |
| 23 | Joseph White | 26 | Son | Mechanic Helper | California |
| 24 | John White | 24 | Son | Mechanic Helper | California |
| 25 | Joseph Martin | 41 | Head | — | California |
| 26 | Mary Martin | 37 | Wife | — | California |
| 27 | Joseph Jr Martin | 13 | Son | — | California |
| 28 | Edward Martin | 12 | Son | — | California |
| 29 | George Martin | 10 | Son | — | California |
| 30 | Joseph Sears | 65 | Head | — | Portugal |
| 31 | Mary Sears THIS PERSON | 61 | Wife | — | California |
| 32 | Joseph Jr Sears | 32 | Son | — | California |
| 33 | Frank Sears | 28 | Son | — | California |
| 34 | John Sears | 25 | Son | Laborer | California |
| 35 | George Sears | 25 | Head | Laborer | California |
| 36 | Alice H Sears | 22 | Wife | — | California |
| 37 | Alice Sears | 1 | Daughter | — | California |
| 38 | Frank Sears | 31 | Head | — | California |
| 39 | Mary Sears | 28 | Wife | — | California |
| 40 | Frank Jr Sears | 7 | Son | — | California |
| 41 | Joseph Sears | 35 | Head | Lineman | Michigan |
| 42 | Hazel Sears | 34 | Wife | — | California |
| 43 | Joseph Jr Sears | 10 | Son | — | California |
| 44 | Pearl Sears | 8 | Daughter | — | California |
| 45 | Mary Sears | 53 | Head | — | California |
| 46 | George Sears | 23 | Son | — | California |
| 47 | Anton Sears | 46 | Head | Janitor | Portugal |
| 48 | Mabel Sears | 35 | Wife | — | California |
| 49 | Anton Jr Sears | 16 | Son | — | California |
| 50 | Joseph Sears | 15 | 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)