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Robert Ball — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Robert Ball across the 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 7-person household.
Age 5
b. ~1925
Male
Son
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Ball |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago |
| Est. Birth Year | ~1925 |
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.
7 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Alice Ball | Daughter | — | 12 | ~1918 |
| Olga Ball | Spouse | — | 35 | ~1895 |
| Mary Ball | Daughter | — | 16 | ~1914 |
| Robert Ball | Son | — | 5 | ~1925 |
| Charles Ball | Son | — | 10 | ~1920 |
| Charles Ball | Head | — | 39 | ~1891 |
| Thomas Ball | Son | — | 17 | ~1913 |
Census Appearances
1930
Cook, Illinois
Son, age 5
Cook, Illinois · implied b. ~1925 — 7 household members
| Surname | Ball |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 16
Cook-County, Illinois · implied b. ~1924 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ball |
| Given Name | Ross |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Hours Worked | 8 |
| Income (1939) | 0 |
| Highest Grade | H-1 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 · 1930 · age 5 · b. ~1925 · Illinois
★ You are viewing this record
Sibling
Alice Ball
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Ball
Sibling · 1930 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Ball
Sibling · 1930 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Ball
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 — Cook, Illinois
Open full size
1930 US Federal Census — Cook, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel475:1089)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles Schmidt | 61 | Head | Proprietor | Germany |
| 2 | Selma Schmidt | 53 | Wife | — | Germany |
| 3 | Arthur Schmidt | 32 | Son | Packer | Illinois |
| 4 | Thomas J. Mcnally | 29 | Head | Assistant Cashier | Illinois |
| 5 | Frances M. Mcnally | 23 | Wife | — | Illinois |
| 6 | Sime Shakota | 42 | Head | Machine Opr. | Yugoslavia |
| 7 | Bertha Shakota | 35 | Wife | — | Czechoslovakia |
| 8 | Fred Loesch | 35 | Head | Proprietor | Germany |
| 9 | Grace Loesch | 32 | Wife | — | Illinois |
| 10 | Wilbert Loesch | 10 | Son | — | Illinois |
| 11 | Lenore Loesch | 9 | Daughter | — | Illinois |
| 12 | Helen Klimowicz | 40 | Head | — | Illinois |
| 13 | Frank Klimowicz | 21 | Son | — | Illinois |
| 14 | Euphemia Klimowicz | 15 | Daughter | — | Illinois |
| 15 | Robert G. Chisholm | 38 | Head | Clerk | Illinois |
| 16 | Edna Chisholm | 34 | Wife | — | Illinois |
| 17 | Robert Chisholm | 4 | Son | — | Illinois |
| 18 | William Chisholm | 0 | Son | — | Illinois |
| 19 | Roman Kiemann | 51 | Head | Foreman | Illinois |
| 20 | Louisa Kiemann | 50 | Wife | — | Illinois |
| 21 | Lucille Kiemann | 17 | Daughter | File Clerk | Illinois |
| 22 | Charles A. Ball | 39 | Head | Manager | Illinois |
| 23 | Olga M. Ball | 35 | Wife | — | Illinois |
| 24 | Thomas Ball | 17 | Son | — | Illinois |
| 25 | Mary Ball | 16 | Daughter | — | Illinois |
| 26 | Alice Ball | 12 | Daughter | — | Illinois |
| 27 | Charles Ball | 10 | Son | — | Illinois |
| 28 | Robert Ball THIS PERSON | 5 | Son | — | Illinois |
| 29 | George F. Larson | 31 | Head | Fireman | Illinois |
| 30 | Leona Larson | 23 | Wife | — | Illinois |
| 31 | Warren Larson | 14 | Son | — | Illinois |
| 32 | Kenneth Larson | 7 | Son | — | Illinois |
| 33 | Louise Kruse | 40 | Head | Dressmaker | Illinois |
| 34 | Elmer Kruse | 15 | Son | Messenger | Illinois |
| 35 | Mildred Kruse | 14 | Daughter | — | Illinois |
| 36 | Dorothy Kruse | 12 | Daughter | — | Illinois |
| 37 | Robert J. Chusham | 40 | Head | Salesman | Illinois |
| 38 | Mary Chusham | 39 | Wife | — | Illinois |
| 39 | George Chusham | 17 | Son | Asst. Del. Boy | Illinois |
| 40 | Marion Chusham | 15 | Daughter | — | Illinois |
| 41 | Evelyn Chusham | 14 | Daughter | — | Illinois |
| 42 | Robert Chusham | 13 | Son | — | Illinois |
| 43 | Eleanor Chusham | 7 | Daughter | — | Illinois |
| 44 | Kenneth Chusham | 4 | Son | — | Illinois |
| 45 | Harold Chusham | 2 | Son | — | Illinois |
| 46 | Frank Clavelli | 41 | Head | Tailor | Italy |
| 47 | Rose Clavelli | 41 | Wife | — | Italy |
| 48 | Mary Clavelli | 16 | Daughter | — | Italy |
| 49 | Oscar Clavelli | 14 | Son | — | Illinois |
| 50 | Anthony Clavelli | 13 | Son | — | Illinois |
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)