CJ
Clarence Johnson — 1930 US Census Record
Model Tree available1930 United States Federal Census · Calaveras, California
Our Model Tree links this Clarence Johnson across the 1910, 1920 and 1930 US Censuses in Calaveras, California (XGBoost, ~Confirmed), with identified parents Louis & Lewis — first a son (b.~1901), then head of a 8-person household.
Age 29
b. ~1901
Male
Son
Born: California
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Calaveras, California |
| Surname | Johnson |
| Given Name | Clarence M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Additional Details | |
| Occupation | Laborer |
| Industry | Stock Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Laborer |
| Township / Ward | Altaville District |
| Est. Birth Year | ~1901 |
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 1930 census.
| Name | Relation to head | Relative to Clarence | Age | Birth yr |
|---|---|---|---|---|
| Louis Johnson | Head | — | 71 | ~1859 |
| Bert Smerdon | Other | — | 29 | ~1901 |
| Wm Wiley | Other | — | 33 | ~1897 |
| Melvina Johnson | Other | — | 62 | ~1868 |
| Everett Johnson | Son | — | 39 | ~1891 |
| Chas Johnson | Son | — | 41 | ~1889 |
| Ernest Johnson | Son | — | 26 | ~1904 |
| Clarence Johnson | Son | — | 29 | ~1901 |
Census Appearances
1910
Calaveras, California
Son, age 9
Calaveras, California · implied b. ~1901 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Clarence N. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Occupation | none |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1920
Calaveras, California
Son, age 18
Calaveras, California · implied b. ~1902 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Clarence N. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Calaveras, California
Son, age 29
Calaveras, California · implied b. ~1901 — 8 household members
| Surname | Johnson |
| Given Name | Clarence M. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | California |
| Mother's Birthplace | California |
| Occupation | Laborer |
| Industry | Stock Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| 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 Clarence Johnson across 3 US Census years (1910, 1920 and 1930) in Calaveras, California, using XGBoost record linkage. Identified parents: father Louis Johnson (~0.92 confidence) and father Lewis Johnson (~0.92 confidence) and mother Melzeanna Johnson (~0.92 confidence) and mother Maryanne Johnson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Louis Johnson
b. ~1859
Source father
● Household
· direct · ~0.92
Father
Lewis Johnson
b. ~1853
Source father
● Household
· direct · ~0.92
Mother
Melzeanna Johnson
b. ~1868
Source mother
● Household
· direct · ~0.92
Mother
Maryanne Johnson
b. ~1869
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Clarence Johnson
Son · 1930 · age 29 · b. ~1901 · California
★ You are viewing this record
Sibling
Everett Johnson
Sibling · 1930 · age 39
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Chas Johnson
Sibling · 1930 · age 41
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ernest Johnson
Sibling · 1930 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Calaveras, California
Open full size
1930 US Federal Census — Calaveras, California
Page Contents
50 people indexed on this census page (ia:1930:californiacensus00reel112:0551)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Fred Lee | 42 | Head | Miner | California |
| 2 | Antone Quada | 50 | Head | Miner | California |
| 3 | Edna Quada | 35 | Wife-H | — | California |
| 4 | Annie Quada | 6 | Daughter | — | California |
| 5 | Alice Quada | 3 | Daughter | — | California |
| 6 | Willie Quada | 1 | Son | — | California |
| 7 | Nellie Quada | 0 | Daughter | — | California |
| 8 | Louis E. Johnson | 71 | Head | Farmer | California |
| 9 | Melvina M. B. Johnson | 62 | Wife-H | — | California |
| 10 | Chas H. Johnson | 41 | Son | Laborer | California |
| 11 | Everett L. Johnson | 39 | Son | Laborer | California |
| 12 | Clarence M. Johnson THIS PERSON | 29 | Son | Laborer | California |
| 13 | Ernest Johnson | 26 | Son | Laborer | California |
| 14 | Wm H. Wiley | 33 | Son in law | Miner | California |
| 15 | Bert Smerdon | 29 | Boarder | Laborer | California |
| 16 | J. J. Lynch | 70 | Head | Farmer | North Carolina |
| 17 | Wm Lynch | 61 | Head | Farmer | California |
| 18 | Frank J. Pognonano | 43 | Head | Ditch Tender | California |
| 19 | Alvina Pognonano | 36 | Wife-H | — | California |
| 20 | Russell H. Pognonano | 18 | Son | — | California |
| 21 | Head Gusola-Dominic | 46 | Head | Furnace Man | Italy |
| 22 | Columbia Gusola-Dominic | 42 | Wife-H | — | Italy |
| 23 | Irene Gusola-Dominic | 21 | Daughter | Clerk | California |
| 24 | Fred Gusola-Dominic | 20 | Son | Molder | California |
| 25 | Alice Gusola-Dominic | 16 | Daughter | — | California |
| 26 | Antone Gusola-Dominic | 10 | Son | — | California |
| 27 | Henry Buchella | 67 | Head | Stone Mason | Italy |
| 28 | Annie Buchella | 58 | Wife-H | — | California |
| 29 | Pat Silvaroli | 71 | Head | — | California |
| 30 | Johanna Silvaroli | 103 | Mother-H | — | Italy |
| 31 | Wm Lucato | 47 | Head | Miner | Italy |
| 32 | Sarah Lucato | 29 | Wife-H | — | Italy |
| 33 | Annie Lucato | 11 | Daughter | — | California |
| 34 | Mary Lucato | 10 | Daughter | — | California |
| 35 | Antone Lucato | 8 | Son | — | California |
| 36 | Bert Crosby | 50 | Head | Truck Driver | California |
| 37 | Mona Crosby | 39 | Wife-H | — | California |
| 38 | Stanley Crosby | 17 | Son | — | California |
| 39 | Edith Crosby | 15 | Daughter | — | California |
| 40 | Raymond Crosby | 10 | Son | — | California |
| 41 | Alice Crosby | 9 | Daughter | — | California |
| 42 | Amy Crosby | 2 | Daughter | — | California |
| 43 | Tony Tucci | 54 | Head | Miner | Italy |
| 44 | Alma Tucci | 41 | Wife-H | — | California |
| 45 | Tony Tucci | 19 | Son | Laborer | California |
| 46 | D. M. Mcfall | 70 | Head | Engineer | California |
| 47 | Sadie Mcfall | 60 | Mother-H | — | California |
| 48 | Cliff Taylor | 39 | Head | — | California |
| 49 | Louis Fondacaro | 56 | Head | — | California |
| 50 | Alma Botten | 17 | Son daughter | — | California |
Related Census Records
Pedigree Summary
Clarence + 3 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)