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Robert Ball — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Cascade-County, Montana
Our Model Tree links this Robert Ball across the 1930 and 1940 US Censuses in Cascade-County, Montana (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 6-person household.
Age 18
b. ~1922
Male
Son
Born: Montana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Cascade-County, Montana |
| Surname | Ball |
| Given Name | Robert Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Montana |
| 1935 Residence (City) | District 1, Great Falls |
| 1935 Residence (County) | Cascade |
| Additional Details | |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 888 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
| Occupation | Laborer |
| Township / Ward | District 1 Great Falls |
| Est. Birth Year | ~1922 |
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 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Ball | Son | — | 18 | ~1922 |
| Barbara Ball | Daughter | — | 16 | ~1924 |
| Jack Ball | Son | — | 7 | ~1933 |
| Martha Ball | Spouse | — | 49 | ~1891 |
| Robert Ball | Head | — | 48 | ~1892 |
| Betty Ball | Daughter | — | 12 | ~1928 |
Census Appearances
1930
Cascade, Montana
Son, age 8
Cascade, Montana · implied b. ~1922 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ball |
| Given Name | Robert S |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Montana |
| Father's Birthplace | Montana |
| Mother's Birthplace | Montana |
| Occupation | none |
| Veteran | No |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
1940
Cascade-County, Montana
Son, age 18
Cascade-County, Montana · implied b. ~1922 — 6 household members
| Surname | Ball |
| Given Name | Robert Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Montana |
| 1935 Residence (City) | District 1, Great Falls |
| 1935 Residence (County) | Cascade |
| Occupation | Laborer |
| Industry | Farm |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 888 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Montana |
| Birth Country | United States |
| Birthplace (normalized) | montana |
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 18 · b. ~1922 · Montana
★ You are viewing this record
Sibling
Jack Ball
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Ball
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Barbara Ball
Sibling · 1940 · age 16
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 — Cascade-County, Montana
Open full size
1940 US Federal Census — Cascade-County, Montana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02215-00087)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Edith Solomon | 54 | Wife | — | England |
| 42 | Alex Yule | 62 | Head | Owner | Canada |
| 43 | Helen Yule | 58 | Wife | — | Missouri |
| 44 | Joe Cantrell | 18 | Hired Hand | Milker | Missouri |
| 45 | George Minnis | 26 | Hired Hand | Truck Driver | Missouri |
| 46 | John Anderson | 71 | Head | Owner | Sweden |
| 47 | Robert Ball | 48 | Head | Farmer | Montana |
| 48 | Martha Ball | 49 | Wife | — | Montana |
| 49 | Robert Jr. Ball THIS PERSON | 18 | Son | Laborer | Montana |
| 50 | Barbara Ball | 16 | Daughter | Laborer | Montana |
| 51 | Betty Ball | 12 | Daughter | — | Montana |
| 52 | Jack Ball | 7 | Son | — | Montana |
| 53 | Chris Golde | 39 | Head | Rod Man | Montana |
| 54 | Mary Golde | 37 | Wife | — | Montana |
| 55 | Robert Golde | 15 | Son | — | Montana |
| 56 | Dorothy Golde | 13 | Daughter | — | Montana |
| 57 | Marjorie Golde | 12 | Daughter | — | Montana |
| 58 | Shirley Golde | 9 | Daughter | — | Montana |
| 59 | Harold Golde | 1 | Son | — | Montana |
| 60 | William Merriman | 53 | Head | Operator | Iowa |
| 61 | Hannah Merriman | 50 | Wife | Laborer | Scotland |
| 62 | Sidney Merriman | 20 | Son | Laborer | Montana |
| 63 | Grace Merriman | 18 | Daughter | — | Montana |
| 64 | William Hunter | 38 | Head | Auto Mechanic | Montana |
| 65 | Marjorie Hunter | 30 | Wife | — | Nebraska |
| 66 | Marlin Hunter | 4 | Son | — | Montana |
| 67 | Henry Becker | 78 | Head | Owner | Minnesota |
| 68 | Egbert Baldwin | 73 | Head | Operator | Wisconsin |
| 69 | Ella Ellingson | 44 | Daughter | Operator | Illinois |
| 70 | Lois Ellingson | 15 | Grand daughter | — | Montana |
| 71 | Robert Ellingson | 10 | Grandson | — | Montana |
| 72 | Harold Brown | 36 | Head | Secretary | Washington |
| 73 | Marjorie Brown | 26 | Wife | Secretary | Montana |
| 74 | Lee Thorndike | 54 | Head | Owner | South Dakota |
| 75 | Hazel Thorndike | 46 | Wife | Bookkeeper | Iowa |
| 76 | Frank Thorndike | 24 | Son | Odd Jobs | Montana |
| 77 | Frances Thorndike | 22 | Daughter | Cashier | Montana |
| 78 | Marjorie Thorndike | 17 | Daughter | — | Montana |
| 79 | John Mcdonald | 56 | Head | Watchman | Scotland |
| 80 | Frank Andrews | 54 | Partner | Laborer | Minnesota |
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)