JC
John Corcoran — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Santa Clara, California
Our Model Tree links this John Corcoran across the 1900, 1910 and 1920 US Censuses in Santa Clara, California (XGBoost, ~Confirmed) — first a head (b.~1853), then head of a 3-person household.
Age 67
b. ~1853
Male
Head
Born: Maine
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Santa Clara, California |
| Surname | Corcoran |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 67 |
| Marital Status | Married |
| Birthplace | Maine |
| Father's Birthplace | Argentine Rep |
| Mother's Birthplace | California |
| Additional Details | |
| Occupation | Clerk |
| Industry | Meat Store |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
| Occupation | Clerk |
| Township / Ward | San Jose City |
| Est. Birth Year | ~1853 |
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.
3 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Corcoran | Head | — | 67 | ~1853 |
| Bettie Corcoran | Spouse | — | 54 | ~1866 |
| Titus Corcoran | Son | — | 33 | ~1887 |
Census Appearances
1900
Santa Clara, …
Head, age 43
Santa Clara, California · implied b. ~1857 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Corcoran |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Maine |
| Birth Month | Feb |
| Birth Year | 1857 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Plumbing |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
1910
Santa Clara, …
Head, age 58
Santa Clara, California · implied b. ~1852 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Corcoran |
| Given Name | John C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | Maine |
| Years Married | 26 |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Occupation | Own income |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | English |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
1920
Santa Clara, …
Head, age 67
Santa Clara, California · implied b. ~1853 — 3 household members
| Surname | Corcoran |
| Given Name | John J. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 67 |
| Marital Status | Married |
| Birthplace | Maine |
| Father's Birthplace | Argentine Rep |
| Mother's Birthplace | California |
| Occupation | Clerk |
| Industry | Meat Store |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | Maine |
| Birth Country | United States |
| Birthplace (normalized) | maine |
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 John Corcoran across 3 US Census years (1900, 1910 and 1920) in Santa Clara, California, using XGBoost record linkage.
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This person
Anchor record
John Corcoran
Head · 1920 · age 67 · b. ~1853 · 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 — Santa Clara, California
Open full size
1920 US Federal Census — Santa Clara, California
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu147unit:1011)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Edward Fiedler | 10 | Son | — | California |
| 2 | Jeanne Fiedler | 8 | Daughter | — | California |
| 3 | Merrell Fiedler | 7 | Son | — | California |
| 4 | Mary Best | 73 | Mother-in-law | — | New York |
| 5 | Eugene Witzig | 45 | Head | Clerk | Missouri |
| 6 | J. Jennie Witzig | 41 | Wife | — | California |
| 7 | Alberta Rubin | 45 | Head | — | Oregon |
| 8 | Charles Rubin | 25 | Son | — | Iowa |
| 9 | Philip Rubin | 21 | Son | — | Iowa |
| 10 | William Rubin | 18 | Son | Automobile Salesman | Iowa |
| 11 | Robert Rubin | 11 | Son | — | Missouri |
| 12 | Jerome Rubin | 9 | Son | — | Colorado |
| 13 | Hugh Wall | 43 | Boarder | Laborer | Cape Colony|English |
| 14 | Andrew Mullen | 67 | Head | Ex. Accountant | New York |
| 15 | Hattie Mullen | 52 | Wife | — | Illinois |
| 16 | Mary O'Brien | 49 | Head | — | California |
| 17 | Charles O'Brien | 27 | Son | — | California |
| 18 | Albert O'Brien | 26 | Son | Salesman | California |
| 19 | Elmer O'Brien | 24 | Son | Timekeeper | California |
| 20 | May Eckwortz | 56 | Head | — | Arkansas |
| 21 | Ida Thompson | 53 | Head | — | Wisconsin |
| 22 | Serena Pruitt | 46 | Head | — | Missouri |
| 23 | Frank B. Knight | 55 | Head | Mechanic | Iowa |
| 24 | Cora Knight | 51 | Wife | — | Illinois |
| 25 | Hal Knight | 21 | Daughter | Apprentice | California |
| 26 | Alice Milton | 26 | Boarder | Matron | California |
| 27 | John H. Graham | 47 | Head | Brakeman | Wisconsin |
| 28 | Julia Graham | 47 | Wife | — | California |
| 29 | Malcolm Graham | 21 | Son | Pressman | California |
| 30 | Ariel Graham | 11 | Daughter | — | California |
| 31 | Alfred Barner | 49 | Head | Salesman | California |
| 32 | Anna Barner | 39 | Wife | — | California |
| 33 | Dorothy Barner | 18 | Daughter | — | California |
| 34 | Dante Vizzolo | 31 | Head | Wall Paper | Italy |
| 35 | Emma Vizzolo | 28 | Wife | — | California |
| 36 | Margaret Vizzolo | 8 | Daughter | — | Louisiana |
| 37 | Dante Vizzolo | 3 | Son | — | California |
| 38 | Frank Fuller | 25 | Head | Wall Paper | Montana |
| 39 | Bernice Fuller | 22 | Wife | — | California |
| 40 | John J. Corcoran THIS PERSON | 67 | Head | Clerk | Maine |
| 41 | Bettie Corcoran | 54 | Wife | — | California |
| 42 | Titus Corcoran | 33 | Son | — | California |
| 43 | Alice Mcvarney | 64 | Head | — | Ireland |
| 44 | Thomas Costello | 36 | Son-in-law | Laborer | Ireland |
| 45 | Margaret Costello | 28 | Daughter | — | California |
| 46 | Thomas A. Costello | 4 | Grandson | — | California |
| 47 | Edward A. Costello | 2 | Grandson | — | California |
| 48 | Robert E. Costello | 0 | Grandson | — | California |
| 49 | Laura Jones | 60 | Head | Laundress | Kentucky |
| 50 | Salvatore Piazza | 51 | Head | Laborer | Italy |
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)