MC
Mary Cobb — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Alameda, California
Our Model Tree links this Mary Cobb across the 1910 and 1920 US Censuses in Alameda, California (XGBoost, ~Confirmed) — first a spouse (b.~1871), then head of a 8-person household.
Age 49
b. ~1871
Female
Spouse
Born: North Carolina
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Alameda, California |
| Surname | Cobb |
| Given Name | Mary L |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | North Carolina |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | North Carolina |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | North Carolina |
| Birth Country | United States |
| Birthplace (normalized) | north carolina |
| Township / Ward | Berkeley City |
| Est. Birth Year | ~1871 |
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 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Murphy Cobb | Son | — | 18 | ~1902 |
| Robert Cobb | Son | — | 13 | ~1907 |
| Mary Cobb | Daughter | — | 5 | ~1915 |
| Elsa Halliday | Other | — | 45 | ~1875 |
| Harold Cobb | Son | — | 23 | ~1897 |
| James Cobb | Head | — | 54 | ~1866 |
| Mary Cobb | Spouse | — | 49 | ~1871 |
| Charles Cobb | Son | — | 22 | ~1898 |
Census Appearances
1910
Alameda, California
Spouse, age 40
Alameda, California · implied b. ~1870 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cobb |
| Given Name | Mary L. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | North Carolina |
| Years Married | 17 |
| Children Born | 5 |
| Children Living | 5 |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | North Carolina |
| Birth State | North Carolina |
| Birth Country | United States |
| Birthplace (normalized) | north carolina |
1920
Alameda, California
Spouse, age 49
Alameda, California · implied b. ~1871 — 8 household members
| Surname | Cobb |
| Given Name | Mary L |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | North Carolina |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | North Carolina |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | North Carolina |
| Birth Country | United States |
| Birthplace (normalized) | north carolina |
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 Cobb across 2 US Census years (1910 and 1920) in Alameda, California, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Cobb
Spouse · 1920 · age 49 · b. ~1871 · California
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Alameda, California
Open full size
1920 US Federal Census — Alameda, California
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu092unit:0584)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lillian Thomas | 47 | Wife | — | Kansas |
| 2 | John A Thomas | 21 | Son | — | Kansas |
| 3 | Margaret Thomas | 19 | Daughter | — | Kansas |
| 4 | James Thomas | 13 | Son | — | Kansas |
| 5 | Joseph Goforth | 54 | Head | Dentist | California |
| 6 | Helen Goforth | 45 | Wife | — | California |
| 7 | Leonora Goforth | 19 | Daughter | — | California |
| 8 | Margaret Goforth | 15 | Daughter | — | California |
| 9 | James Goforth | 13 | Son | — | California |
| 10 | Helena Benson | 3 | Grand-Daughter | — | Wisconsin |
| 11 | John C Somersett | 40 | Head | Dentist | California |
| 12 | Edna G Somersett | 39 | Wife | — | Germany |
| 13 | Hope Somersett | 18 | Daughter | — | California |
| 14 | James F Cobb | 54 | Head | Salesman | Georgia |
| 15 | Mary L Cobb THIS PERSON | 49 | Wife | — | North Carolina |
| 16 | Harold Cobb | 23 | Son | — | Georgia |
| 17 | Charles Cobb | 22 | Son | — | Georgia |
| 18 | Murphy Cobb | 18 | Son | — | Georgia |
| 19 | Robert Cobb | 13 | Son | — | North Carolina |
| 20 | Mary L Cobb | 5 | Daughter | — | North Carolina |
| 21 | Elsa Halliday | 45 | Roomer | — | Massachusetts |
| 22 | George D Egenhoff | 51 | Head | Operator | California |
| 23 | Nora G Egenhoff | 44 | Wife | — | California |
| 24 | Marie Sturmer | 45 | Head | — | Germany |
| 25 | Arnold Sturmer | 24 | Son | Clerk | California |
| 26 | Daisy Sturmer | 12 | Son | — | California |
| 27 | Frank Rinehart | 58 | Head | Collector | California |
| 28 | Emma S Rinehart | 51 | Wife | — | California |
| 29 | Josephine Rinehart | 25 | Son | Engineer | California |
| 30 | Lawrence E Thomas | 27 | Head | Clerk | California |
| 31 | Mildred Thomas | 24 | Wife | — | California |
| 32 | Betty A Thomas | 1 | Daughter | — | California |
| 33 | Dan Hadsell | 36 | Head | Attorney | United States |
| 34 | Nora Hadsell | 34 | Wife | — | California |
| 35 | Elaine Hadsell | 6 | Daughter | — | California |
| 36 | Barbara Hadsell | 5 | Daughter | — | California |
| 37 | Wallace A Saline | 43 | Head | Instructor | England |
| 38 | Kathryn Saline | 30 | Wife | — | Ohio |
| 39 | Patricia Saline | 1 | Daughter | — | California |
| 40 | Frank Mckeown | 35 | Head | Dealer | England |
| 41 | Rachel Mckeown | 38 | Wife | — | California |
| 42 | Charles Mckeown | 5 | Son | — | California |
| 43 | Harold Mckeown | 2 | Son | — | California |
| 44 | Elizabeth Mckeown | 41 | Sister-in-law | — | California |
| 45 | Edward A Ancell | 50 | Head | Engineer | Maryland |
| 46 | Lillian Ancell | 42 | Wife | — | Indiana |
| 47 | Lillian B Ancell | 13 | Daughter | — | Illinois |
| 48 | Janet H Ancell | 11 | Daughter | — | Maryland |
| 49 | Miles E Hickey | 36 | Head | Salesman | California |
| 50 | Lulu Hickey | 35 | Wife | — | California |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)