BJ
Ben Johnson — 1930 US Census Record
Model Tree available1930 United States Federal Census · Alameda, California
Our Model Tree links this Ben Johnson across the 1920, 1930 and 1940 US Censuses in Alameda, California (XGBoost, ~Confirmed), with identified parents Otto & Evelyn — first a son (b.~1919), then head of a 4-person household.
Age 11
b. ~1919
Male
Son
Born: California
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Alameda, California |
| Surname | Johnson |
| Given Name | Ben J. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Ohio |
| Mother's Birthplace | California |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Township / Ward | Oakland City |
| Est. Birth Year | ~1919 |
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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Ben | Age | Birth yr |
|---|---|---|---|---|
| Ben Johnson | Son | — | 11 | ~1919 |
| Ben Johnson | Head | — | 40 | ~1890 |
| Alice Johnson | Other | — | 31 | ~1899 |
| Stanley Johnson | Son | — | 10 | ~1920 |
Census Appearances
1920
Alameda, California
Son, age
Alameda, California · implied b. ~1920 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Ben |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Missouri |
| Mother's Birthplace | California |
| Occupation | none |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Alameda, California
Son, age 11
Alameda, California · implied b. ~1919 — 4 household members
| Surname | Johnson |
| Given Name | Ben J. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Ohio |
| Mother's Birthplace | California |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Alameda-County, California
Son, age 22
Alameda-County, California · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Burnett |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Berkeley City |
| 1935 Residence (County) | Alameda |
| Income (1939) | 0 |
| Highest Grade | C 2 |
| 1935 Residence | Same place |
| 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 Ben Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Otto Johnson (~0.92 confidence) and mother Evelyn Johnson (~0.92 confidence) and father Ben Johnson (~0.92 confidence) and father J Johnson (~0.92 confidence) and mother Margaret Johnson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Otto Johnson
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Evelyn Johnson
b. ~1889
Source mother
● Household
· direct · ~0.92
Father
Ben Johnson
b. ~1890
Source father
● Household
· direct · ~0.92
Father
J Johnson
b. ~1895
Source father
● Household
· direct · ~0.92
Mother
Margaret Johnson
b. ~1895
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Ben Johnson
Son · 1930 · age 11 · b. ~1919 · California
★ You are viewing this record
Sibling
Stanley Johnson
Sibling · 1930 · age 10
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 — Alameda, California
Open full size
1930 US Federal Census — Alameda, California
Page Contents
50 people indexed on this census page (ia:1930:15thcensuspopula106unit:0720)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ernest Rayher | 36 | Head | Clerk | Hawaii |
| 2 | Nelle J. Rayher | 32 | Wife-H | Clerk | California |
| 3 | Lincoln R. Hall | 46 | Head | Stage Mech. | New Hampshire |
| 4 | May E. Hall | 46 | Wife-H | — | California |
| 5 | Lincoln R. Jr. Hall | 29 | Son | Stage Mech. | California |
| 6 | Frank Scott | 35 | Head | Bookkeeper | England |
| 7 | Priscilla Scott | 72 | Mother-H | — | England |
| 8 | Thos. Chambers | 36 | Head | Dealer | Greece |
| 9 | Anna Chambers | 31 | Wife-H | — | California |
| 10 | Virginia Chambers | 3 | Daughter | — | California |
| 11 | Herbert S. Daniels | 43 | Head | Driver | California |
| 12 | Elsie M. Daniels | 35 | Wife-H | — | California |
| 13 | Bernice S. Mendenhall | 14 | Step-Daughter | — | Oregon |
| 14 | Harry Mendenhall | 12 | Step-Son | — | California |
| 15 | Donald Mendenhall | 9 | Step-Son | — | California |
| 16 | Ben J. Johnson | 40 | Head | Painter | Ohio |
| 17 | Alice M. Johnson | 31 | Wife-H | — | California |
| 18 | Ben J. Jr. Johnson THIS PERSON | 11 | Son | — | California |
| 19 | Stanley M. Johnson | 10 | Son | — | California |
| 20 | Bert Madsen | 31 | Head | Constructor | Utah |
| 21 | Arvella Madsen | 31 | Wife-H | — | California |
| 22 | Leebird A. Madsen | 10 | Step-Daughter | — | Wisconsin |
| 23 | Dean Madsen | 4 | Son | — | Utah |
| 24 | Shirley Madsen | 2 | Daughter | — | Utah |
| 25 | Edward H. Franklin | 56 | Head | Post. Insp. | Virginia |
| 26 | Sidney A. Franklin | 52 | Wife-H | — | Ohio |
| 27 | Joseph A. Silveria | 26 | Head | Stock Clerk | Portugal |
| 28 | Cecilia M. Silveria | 22 | Wife-H | — | California |
| 29 | Gilbert Silveria | 3 | Son | — | California |
| 30 | Frank Silveria | 1 | Son | — | California |
| 31 | William E. Griffen | 47 | Head | Carpenter | Illinois |
| 32 | Wilhelmina Griffen | 52 | Wife-H | — | Iowa |
| 33 | Herbert Boggs | 21 | Step-Son | Clerk-Grocery | Iowa |
| 34 | Jack Gomes | 27 | Head | Truckman | Holland |
| 35 | Margaret M. Gomes | 22 | Wife-H | Clerk | California |
| 36 | Manuel Nunes | 52 | Head | Laborer | Portugal |
| 37 | Virginia Nunes | 44 | Wife-H | — | Hawaii |
| 38 | Joseph Nunes | 22 | Son | Drummer | Hawaii |
| 39 | Carrie Nunes | 16 | Daughter | — | California |
| 40 | Jack Nunes | 11 | Son | — | California |
| 41 | Gloria Nunes | 19 | Daughter | Cutter | Hawaii |
| 42 | Rose Nunes | 16 | Daughter | Cutter | Hawaii |
| 43 | John Nunes | 14 | Son | — | Hawaii |
| 44 | Herbert Nunes | 10 | Son | — | Hawaii |
| 45 | Albert Nunes | 8 | Son | — | Hawaii |
| 46 | Dorothy Nunes | 7 | Daughter | — | California |
| 47 | Harry Jellema | 64 | Head | Pension | Dutch E. Ind. |
| 48 | Emma Jellema | 39 | Wife-H | — | Holland |
| 49 | Francis Jellema | 9 | Son | — | Dutch E. Ind. |
| 50 | Leonora Barrett | 62 | Head | Carpenter | Newfoundland |
Pedigree Summary
Ben + 1 sibling
Gen 1 · 5 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)