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Robert Ball — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Clark-County, Nevada
Our Model Tree links this Robert Ball across the 1930 and 1940 US Censuses in Clark-County, Nevada (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 10-person household.
Age 13
b. ~1927
Male
Son
Born: Nevada
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Clark-County, Nevada |
| Surname | Ball |
| Given Name | Robert L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Nevada |
| 1935 Residence (City) | Las Vegas City |
| 1935 Residence (County) | Clark |
| Additional Details | |
| Highest Grade | G 7 |
| 1935 Residence | Same House |
| Birth State | Nevada |
| Birth Country | United States |
| Birthplace (normalized) | nevada |
| Township / Ward | Las Vegas City |
| Est. Birth Year | ~1927 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Georgia Ball | Daughter | — | 20 | ~1920 |
| Ida Ball | Daughter | — | 9 | ~1931 |
| Emily Ball | Spouse | — | 45 | ~1895 |
| Irene Ball | Daughter | — | 15 | ~1925 |
| Harry Ball | Son | — | 23 | ~1917 |
| Robert Ball | Son | — | 13 | ~1927 |
| Betsy Ball | Daughter | — | 18 | ~1922 |
| Howard Ball | Son | — | 22 | ~1918 |
| Harry Ball | Head | — | 58 | ~1882 |
| Thomas Ball | Son | — | 11 | ~1929 |
Census Appearances
1930
Clark, Nevada
Son, age 4
Clark, Nevada · implied b. ~1926 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ball |
| Given Name | Robert L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Nevada |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Nevada |
| Birth State | Nevada |
| Birth Country | United States |
| Birthplace (normalized) | nevada |
1940
Clark-County, Nevada
Son, age 13
Clark-County, Nevada · implied b. ~1927 — 10 household members
| Surname | Ball |
| Given Name | Robert L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Nevada |
| 1935 Residence (City) | Las Vegas City |
| 1935 Residence (County) | Clark |
| Highest Grade | G 7 |
| 1935 Residence | Same House |
| Birth State | Nevada |
| Birth Country | United States |
| Birthplace (normalized) | nevada |
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 Ball across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Ball
Son · 1940 · age 13 · b. ~1927 · Nevada
★ You are viewing this record
Sibling
Betsy Ball
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ida Ball
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Ball
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Georgia Ball
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Howard Ball
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harry Ball
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Irene Ball
Sibling · 1940 · age 15
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
1940 US Federal Census — Clark-County, Nevada
Open full size
1940 US Federal Census — Clark-County, Nevada
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02276-00362)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Barbara Dough | 5 | Daughter | — | — |
| 42 | Larson Dough | 4 | Daughter | — | — |
| 43 | Johnie S. Dough | 1 | Son | — | — |
| 44 | Harry Stiles | 24 | Lodger | Laborer | Colorado |
| 45 | Fred M. Dimon | 31 | Head | — | California |
| 46 | Marjorie M. Dimon | 11 | Daughter | — | Nevada |
| 47 | Beverly Dimon | 9 | Daughter | — | Arizona |
| 48 | Ralph J. Dimon | 7 | Son | — | California |
| 49 | Harry W. Ball | 58 | Head | Clerk | Illinois |
| 50 | Emily S. Ball | 45 | Wife | — | Nevada |
| 51 | Harry M. Ball | 23 | Son | Laborer | Nevada |
| 52 | Howard N. Ball | 22 | Son | Laborer | Nevada |
| 53 | Georgia A. Ball | 20 | Daughter | — | Nevada |
| 54 | Betsy E. Ball | 18 | Daughter | — | Nevada |
| 55 | Irene M. Ball | 15 | Daughter | — | Nevada |
| 56 | Robert L. Ball THIS PERSON | 13 | Son | — | Nevada |
| 57 | Thomas C. Ball | 11 | Son | — | Nevada |
| 58 | Ida M. Ball | 9 | Daughter | — | Nevada |
| 59 | Lucile E. Stauffer | 42 | Head | Housewife | Oregon |
| 60 | Charles F. Carroll | 63 | Head | Watchman | California |
| 61 | Caroline Carroll | 44 | Wife | — | Austria |
| 62 | Norman C. Carroll | 14 | Son | — | California |
| 63 | Vivian Carroll | 12 | Daughter | — | Nevada |
| 64 | Francis Ellerker | 19 | Daughter | Tel. Operator | Nevada |
| 65 | Caroline A. Ellerker | 5 | Gr. Daughter | — | Nevada |
| 66 | Delbert Gibbs | 46 | Head | Teamster | Missouri |
| 67 | Cecilia Gibbs | 38 | Wife | — | Mass. |
| 68 | Delbert C. Gibbs | 8 | Son | — | Nevada |
| 69 | Rolla F. Gibbs | 4 | Son | — | Nevada |
| 70 | Fredrick N. Gibbs | 2 | Son | — | Nevada |
| 71 | Anthony S. Angelos | 50 | Head | Machinist | Greece |
| 72 | Eileen Angelos | 57 | Wife | — | Oklahoma |
| 73 | Dannie Angelos | 11 | Nephew | — | California |
| 74 | Richard Angelos | 9 | Nephew | — | Nevada |
| 75 | Eugene H. Mckenzie | 22 | Head | — | Montana |
| 76 | Lula Mckenzie | 19 | Wife | — | California |
| 77 | Patricia Mckenzie | 1 | Daughter | — | Nevada |
| 78 | John D. White | 32 | Head | Clerk | Missouri |
| 79 | Frances White | 24 | Wife | — | Kansas |
| 80 | John Jr. White | 4 | Son | — | Nevada |
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)