JB
John Ball — 1940 US Census Record
Model Tree available1940 United States Federal Census · Orange-County, California
Our Model Tree links this John Ball across the 1920, 1930 and 1940 US Censuses in Orange-County, California (XGBoost, ~Confirmed), with identified parents A & Francis — first a son (b.~1919), then head of a 3-person household.
Age 21
b. ~1919
Male
Son
Born: California
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Orange-County, California |
| Surname | Ball |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Brea |
| 1935 Residence (County) | Orange |
| Additional Details | |
| Occupation | Machine Operator |
| Industry | Beverage Co |
| Class of Worker | PW |
| Hours Worked | 9 |
| Income (1939) | 495 |
| Highest Grade | H-4 |
| 1935 Residence | Same House |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Machine Operator |
| Township / Ward | Brea |
| 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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| A Ball | Head | — | 58 | ~1882 |
| John Ball | Son | — | 21 | ~1919 |
| Victoria Ball | Spouse | — | 55 | ~1885 |
Census Appearances
1920
Orange, California
Son, age 1
Orange, California · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ball |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Nebraska |
| Mother's Birthplace | Kansas |
| Can Read | No |
| Can Write | No |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Orange, California
Son, age 11
Orange, California · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ball |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | California |
| Father's Birthplace | Nebraska |
| Mother's Birthplace | Kansas |
| Can Read/Write | Yes |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Orange-County, California
Son, age 21
Orange-County, California · implied b. ~1919 — 3 household members
| Surname | Ball |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Brea |
| 1935 Residence (County) | Orange |
| Occupation | Machine Operator |
| Industry | Beverage Co |
| Class of Worker | PW |
| Hours Worked | 9 |
| Income (1939) | 495 |
| Highest Grade | H-4 |
| 1935 Residence | Same House |
| 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 Ball across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father A Ball (~0.92 confidence) and father Francis Ball (~0.92 confidence) and mother Victoria Ball (~0.92 confidence) and mother Victoria Ball (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
A Ball
b. ~1882
Source father
● Household
· direct · ~0.92
Father
Francis Ball
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Victoria Ball
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Victoria Ball
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Ball
Son · 1940 · age 21 · b. ~1919 · California
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Orange-County, California
Open full size
1940 US Federal Census — Orange-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00271-00800)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Harry M Lester | 31 | Head | Cost Clerk | Louisiana |
| 42 | Doris L Lester | 31 | Wife | — | Canada |
| 43 | Harriet A Lester | 0 | Daughter | — | California |
| 44 | Irene Lambourne | 64 | Head | — | California |
| 45 | Thomas E Moore | 57 | Head | Carpenter | Delaware |
| 46 | Isabelle Moore | 57 | Wife | — | Pennsylvania |
| 47 | Arnold L Berry | 34 | Head | Salesman | Oklahoma |
| 48 | Juanita L Berry | 31 | Wife | — | Kansas |
| 49 | Angela Berry | 3 | Daughter | — | Oklahoma |
| 50 | Alonzo S Ellis | 34 | Head | Fire Chief | Oklahoma |
| 51 | Mary H Ellis | 27 | Wife | — | Scotland |
| 52 | Ralph L Mclean | 38 | Head | Engineer | Colorado |
| 53 | Dorothy S Mclean | 30 | Wife | Librarian | California |
| 54 | Robert H Laguens | 63 | Head | Agent | Georgia |
| 55 | Annie B Laguens | 59 | Wife | — | North Carolina |
| 56 | Estella L Mitchell | 55 | Head | — | Pennsylvania |
| 57 | Kathryn L Mitchell | 27 | Daughter | Cook | California |
| 58 | Chester Hamlin | 55 | Head | Librarian | New York |
| 59 | Lillian Hamlin | 53 | Wife | Machinist | Pennsylvania |
| 60 | Harold I Foster | 47 | Head | Head Milk-Tester | California |
| 61 | Belle R Foster | 47 | Wife | — | Texas |
| 62 | Eugene H Foster | 20 | Son | — | California |
| 63 | Wayne C Foster | 17 | Son | — | California |
| 64 | Elmer F Feaver | 39 | Head | Gardner | Indiana |
| 65 | Ruth M Feaver | 37 | Wife | — | Missouri |
| 66 | Beverly L Feaver | 13 | Daughter | — | California |
| 67 | Fred E Feaver | 9 | Son | — | California |
| 68 | George R Sr Finde | 70 | Head | — | Kansas |
| 69 | Clara Finde | 60 | Wife | — | Pennsylvania |
| 70 | Alonzo C Flendermeyer | 39 | Head | Service Engineer | Missouri |
| 71 | Ethel E Flendermeyer | 33 | Wife | — | California |
| 72 | Evelyn R Flendermeyer | 15 | Daughter | — | California |
| 73 | Billy L Flendermeyer | 4 | Son | — | California |
| 74 | John W Burquist | 58 | Head | — | New York |
| 75 | Clara Burquist | 53 | Wife | — | Ohio |
| 76 | Hugh H Jones | 48 | Head | Gauger | Arkansas |
| 77 | Ruby C Jones | 40 | Wife | — | Missouri |
| 78 | A Arthur Ball | 58 | Head | Proprietor | Nebraska |
| 79 | Victoria Ball | 55 | Wife | — | Kansas |
| 80 | John Ball THIS PERSON | 21 | Son | Machine Operator | California |
Pedigree Summary
John
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 1940 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)