JC
John Clark — 1930 US Census Record
Model Tree available1930 United States Federal Census · Los Angeles, California
Our Model Tree links this John Clark across the 1910, 1920 and 1930 US Censuses in Los Angeles, California (XGBoost, ~Confirmed), with identified parents Amos & Amos — first a son (b.~1908), then head of a 6-person household.
Age 22
b. ~1908
Male
Son
Born: California
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Los Angeles, California |
| Surname | Clark |
| Given Name | John H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Kansas |
| Additional Details | |
| Occupation | Repairing |
| Industry | Radio |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Repairing |
| Township / Ward | Altadena Precinct 2422 |
| Est. Birth Year | ~1908 |
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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Ardys Clark | Daughter | — | 18 | ~1912 |
| Eunice Clark | Daughter | — | 16 | ~1914 |
| Amos Clark | Head | — | 64 | ~1866 |
| John Clark | Son | — | 22 | ~1908 |
| Amos Clark | Son | — | 21 | ~1909 |
| Emma Clark | Spouse | — | 49 | ~1881 |
Census Appearances
1910
Los Angeles, …
Son, age 1
Los Angeles, California · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | John H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Kansas |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1920
Los Angeles, …
Son, age 11
Los Angeles, California · implied b. ~1909 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | John H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Kansas |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Los Angeles, …
Son, age 22
Los Angeles, California · implied b. ~1908 — 6 household members
| Surname | Clark |
| Given Name | John H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Kansas |
| Occupation | Repairing |
| Industry | Radio |
| Class of Worker | W |
| 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 John Clark across 3 US Census years (1910, 1920 and 1930) in Los Angeles, California, using XGBoost record linkage. Identified parents: father Amos Clark (~0.92 confidence) and father Amos Clark (~0.92 confidence) and father Amos Clark (~0.92 confidence) and mother Emma Clark (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Amos Clark
b. ~1866
Source father
● Household
· direct · ~0.92
Father
Amos Clark
b. ~1866
Source father
● Household
· direct · ~0.92
Father
Amos Clark
b. ~1866
Source father
● Household
· direct · ~0.92
Mother
Emma Clark
b. ~1881
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Clark
Son · 1930 · age 22 · b. ~1908 · California
★ You are viewing this record
Sibling
Ardys Clark
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eunice Clark
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Amos Clark
Sibling · 1930 · age 21
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 — Los Angeles, California
Open full size
1930 US Federal Census — Los Angeles, California
Page Contents
50 people indexed on this census page (ia:1930:californiacensus00reel169:1070)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | George R Fugete | 44 | Head | Advertising Mgr | Ohio |
| 2 | Harry M Lawton | 29 | Head | Drapery Cutter | Michigan |
| 3 | Jane E Lawton | 28 | Wife | Cashier | Massachusetts |
| 4 | Mike Peller | 49 | Head | Furniture Tr | Luxemburg |
| 5 | Regina J Peller | 48 | Wife | — | Sweden |
| 6 | Edward E Hebert | 56 | Head | Plumber | Colorado |
| 7 | Edith E Hebert | 42 | Wife | — | England-No |
| 8 | Peter O Harlow | 44 | Head | Carpenter | Sweden |
| 9 | Emily A H Harlow | 41 | Wife | — | Sweden |
| 10 | Roy W Harlow | 18 | Son | — | New York |
| 11 | Viola L Harlow | 16 | Daughter | — | New York |
| 12 | Marion A Dickinson | 49 | Head | Salesman | Wisconsin |
| 13 | Mary A Dickinson | 15 | Daughter | — | California |
| 14 | Mary A Colburn | 63 | Mother-in-law | — | Massachusetts |
| 15 | Carl E Ledbetter | 25 | Head | Manager | Alabama |
| 16 | Helen M Ledbetter | 30 | Wife | — | Nebraska |
| 17 | Margaret E Ledbetter | 6 | Daughter | — | Nebraska |
| 18 | Ella Burke | 58 | Mother-in-law | — | Iowa |
| 19 | Philip Gindoff | 38 | Head | Garage | Russia |
| 20 | Anna H Gindoff | 35 | Wife | — | Russia |
| 21 | David Gindoff | 13 | Son | — | New York |
| 22 | Solomon Gindoff | 9 | Son | — | New York |
| 23 | Amos Z Clark | 64 | Head | Sta Agent | Ohio |
| 24 | Emma E Clark | 49 | Wife | — | Kansas |
| 25 | John H Clark THIS PERSON | 22 | Son | Repairing | California |
| 26 | Amos Z Jr Clark | 21 | Son | — | California |
| 27 | Ardys Z Clark | 18 | Daughter | — | California |
| 28 | Eunice Clark | 16 | Daughter | — | California |
| 29 | Ralph L Schad | 42 | Head | Police | Michigan |
| 30 | Nona L Schad | 31 | Wife | — | Michigan |
| 31 | Donald C Schad | 7 | Son | — | California |
| 32 | Clarence A Schad | 4 | Son | — | California |
| 33 | Peter Van Denberg | 58 | Head | Gardner | Netherlands |
| 34 | Sabina Van Denberg | 55 | Wife | — | Netherlands |
| 35 | Richard Van Denberg | 30 | Son | Lithographer | Michigan |
| 36 | John Van Denberg | 32 | Son | Foreman | Michigan |
| 37 | Theresa Van Denberg | 21 | Daughter | Office Clerk | Michigan |
| 38 | Beatrice J Van Denberg | 15 | Daughter | — | California |
| 39 | Herman R Mead | 56 | Head | Asst Librarian | New York |
| 40 | Pearl K Mead | 54 | Wife | — | Ohio |
| 41 | Ralph K Mead | 15 | Son | News Boy | California |
| 42 | John S Pennington | 74 | Head | — | Pennsylvania |
| 43 | Mary M Pennington | 74 | Wife | — | Ohio |
| 44 | Peter G Jurich | 43 | Head | Moulder | Austria |
| 45 | Alrona B Jurich | 34 | Wife | — | Indiana |
| 46 | Leola E Jurich | 8 | Daughter | — | California |
| 47 | Harry N Brown | 46 | Head | Salesman | Maine |
| 48 | Pearl M Brown | 46 | Wife | — | West Virginia |
| 49 | William B Stockman | 73 | Father-in-law | — | West Virginia |
| 50 | Rose B Stockman | 65 | Mother-in-law | — | West Virginia |
Related Census Records
Pedigree Summary
John + 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)