RG
Robert Gardner — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Calaveras, California
Our Model Tree links this Robert Gardner across the 1900, 1910 and 1920 US Censuses in Calaveras, California (XGBoost, ~Confirmed) — first a head (b.~1858), then head of a 3-person household.
Age 62
b. ~1858
Male
Head
Born: California
Married
1920 Census Record Details
| Census Year | 1920 |
| Location | Calaveras, California |
| Surname | Gardner |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | California |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Altaville Precinct |
| Est. Birth Year | ~1858 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| John Gardner | Son | — | 25 | ~1895 |
| Robert Gardner | Head | — | 62 | ~1858 |
| Addie Gardner | Spouse | — | 54 | ~1866 |
Census Appearances
1900
Calaveras, California
Head, age 45
Calaveras, California · implied b. ~1855 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gardner |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | California |
| Birth Month | Mch |
| Birth Year | 1855 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Farmer |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1910
Calaveras, California
Head, age 53
Calaveras, California · implied b. ~1857 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Gardner |
| Given Name | Robert A. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | California |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Dairyman |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1920
Calaveras, California
Head, age 62
Calaveras, California · implied b. ~1858 — 3 household members
| Surname | Gardner |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 62 |
| Marital Status | Married |
| Birthplace | California |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| 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 Robert Gardner across 3 US Census years (1900, 1910 and 1920) in Calaveras, California, using XGBoost record linkage.
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This person
Anchor record
Robert Gardner
Head · 1920 · age 62 · b. ~1858 · 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 — Calaveras, California
Open full size
1920 US Federal Census — Calaveras, California
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu094unit:0765)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Isabella Ponte | 62 | Wife | — | California |
| 52 | Louis A. Ponte | 23 | Son | Laborer | California |
| 53 | Mabel L. Ponte | 19 | Daughter-in-law | — | Wisconsin |
| 54 | Carley Mark F. Ponte | 0 | Grandson | — | California |
| 55 | Joseph L. Brichetto | 62 | Head | Laborer | California |
| 56 | Anton M. Quijada | 41 | Head | Laborer | California |
| 57 | Edna Quijada | 26 | Wife | — | California |
| 58 | Joseph Quijada | 0 | Son | — | California |
| 59 | Charles B. Howard | 45 | Head | Farmer | California |
| 60 | Jennie J. Howard | 39 | Wife | — | California |
| 61 | Howard G. Howard | 17 | Son | — | California |
| 62 | Mildred S. Howard | 14 | Daughter | — | California |
| 63 | Viola L. Howard | 10 | Daughter | — | California |
| 64 | Charles M. Howard | 6 | Son | — | California |
| 65 | Helen M. Howard | 1 | Daughter | — | California |
| 66 | Joseph Demartini | 65 | Head | Farmer | Italy |
| 67 | Louisa Demartini | 60 | Wife | — | Italy |
| 68 | August Demartini | 29 | Son | Laborer | California |
| 69 | Alonzo Kale | 75 | Head | Watchman | United States |
| 70 | Robert Gardner THIS PERSON | 62 | Head | — | California |
| 71 | Addie E. Gardner | 54 | Wife | — | California |
| 72 | John B. Gardner | 25 | Son | Laborer | California |
| 73 | Conrad E. Morrow | 53 | Head | Moulder | California |
| 74 | Annie E. Morrow | 50 | Wife | — | California |
| 75 | John Sorbini | 66 | Head | — | Italy |
| 76 | William F. Johnson | 46 | Head | Farmer | California |
| 77 | Margaret Johnson | 54 | Sister | — | California |
| 78 | Sophia Johnson | 51 | Sister | — | California |
| 79 | Matilda Johnson | 48 | Sister | — | California |
| 80 | Henry L. Johnson | 43 | Brother | Carpenter | California |
| 81 | Louis E. Johnson | 61 | Head | Farmer | California |
| 82 | Maryanne M. Johnson | 51 | Wife | — | California |
| 83 | Charles H. Johnson | 30 | Son | Laborer | California |
| 84 | Everett L. Johnson | 22 | Son | Laborer | California |
| 85 | Clarence N. Johnson | 18 | Son | Laborer | California |
| 86 | Ernest J. Johnson | 16 | Son | — | California |
| 87 | Frank Massoni | 53 | Head | Farmer | California |
| 88 | George Massoni | 52 | Brother | Partner | California |
| 89 | Charles Massoni | 48 | Brother | Partner | California |
| 90 | Alexander S. Forsyth | 86 | Head | Farmer | Canada |
| 91 | Elizabeth S. Forsyth | 83 | Wife | — | Wisconsin |
| 92 | Irene Ross | 10 | Boarder | — | California |
| 93 | George E. Dookin | 57 | Head | Farmer | California |
| 94 | Rose C. Dookin | 55 | Wife | — | California |
| 95 | Mary L. Dookin | 20 | Daughter | — | California |
| 96 | Robert L. Dookin | 16 | Son | — | California |
| 97 | Albert W. Dookin | 14 | Son | — | California |
| 98 | Stephen J. Smacia | 53 | Head | Farmer | Italy |
| 99 | Louisa T. Smacia | 48 | Wife | — | Italy |
| 100 | Mary L. Smacia | 19 | Daughter | — | 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)