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Mary Ball — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mesa-County, Colorado
Our Model Tree links this Mary Ball across the 1930 and 1940 US Censuses in Mesa-County, Colorado (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 8-person household.
Age 18
b. ~1922
Female
Daughter
Born: Colorado
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mesa-County, Colorado |
| Surname | Ball |
| Given Name | Mary H. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Precinct #5 |
| 1935 Residence (County) | Mesa |
| Additional Details | |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Township / Ward | Precinct 5 |
| 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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Ball | Daughter | — | 18 | ~1922 |
| Lucy Ball | Daughter | — | 12 | ~1928 |
| W Ball | Head | — | 54 | ~1886 |
| Harold Ball | Son | — | 19 | ~1921 |
| Willis Ball | Son | — | 10 | ~1930 |
| Howard Ball | Son | — | 25 | ~1915 |
| Wayne Ball | Son | — | 21 | ~1919 |
| Effie Ball | Spouse | — | 47 | ~1893 |
Census Appearances
1930
Mesa, Colorado
Daughter, age 8
Mesa, Colorado · implied b. ~1922 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ball |
| Given Name | Mary J |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Nebraska |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Mesa-County, Colorado
Daughter, age 18
Mesa-County, Colorado · implied b. ~1922 — 8 household members
| Surname | Ball |
| Given Name | Mary H. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Colorado |
| 1935 Residence (City) | Precinct #5 |
| 1935 Residence (County) | Mesa |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
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 Mary Ball across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Ball
Daughter · 1940 · age 18 · b. ~1922 · Colorado
★ You are viewing this record
Sibling
Harold Ball
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wayne Ball
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Howard Ball
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lucy Ball
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Willis Ball
Sibling · 1940 · 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
1940 US Federal Census — Mesa-County, Colorado
Open full size
1940 US Federal Census — Mesa-County, Colorado
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00470-00165)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Arthur E. Billing | 59 | Head | Farmer | Kansas |
| 42 | Lula V. Billing | 51 | Wife | — | Missouri |
| 43 | Raymond A. Ashley | 21 | Hired man | Farm Laborer | Colorado |
| 44 | Gordon Farmer | 17 | Hired man | Farm Laborer | Colorado |
| 45 | Ronald C. Goyn | 25 | Head | Farmer | Colorado |
| 46 | Mildred G. Goyn | 22 | Wife | — | Colorado |
| 47 | Dennis R. Goyn | 2 | Son | — | Colorado |
| 48 | Donald H. Goyn | 14 | Brother-in-law | — | Colorado |
| 49 | Darrell A. Goyn | 14 | Brother-in-law | — | Colorado |
| 50 | Allen P. Thompson | 43 | Head | Truck Driver | Colorado |
| 51 | Drilla M. Thompson | 32 | Wife | — | Colorado |
| 52 | Glen L. Thompson | 14 | Son | — | Colorado |
| 53 | Barbara J. Thompson | 13 | Daughter | — | Colorado |
| 54 | Lorella E. Thompson | 12 | Daughter | — | Idaho |
| 55 | Maxwell Bardell | 42 | Head | Farmer | Kansas |
| 56 | Nellie J. Bardell | 37 | Wife | — | Oklahoma |
| 57 | Patricia J. Bardell | 11 | Daughter | — | Colorado |
| 58 | Maxwell G. Bardell | 8 | Son | — | Colorado |
| 59 | Lewis E. Bevan | 64 | Head | Farmer | Ohio |
| 60 | Annie Bevan | 59 | Wife | — | Colorado |
| 61 | Orville F. Bevan | 30 | Son | Farm Laborer | Colorado |
| 62 | Newton O. Wyatt | 30 | Son-in-law | Farm Laborer | Colorado |
| 63 | Helen M. Wyatt | 26 | Daughter | — | Colorado |
| 64 | Jesse A. Wyatt | 5 | Grandson | — | Colorado |
| 65 | Ralph R. Bevan | 24 | Head | Farmer | Colorado |
| 66 | Georgia E. Bevan | 20 | Wife | — | Colorado |
| 67 | George Lewis Bevan | 0 | Son | — | Colorado |
| 68 | Logan L. Hawkins | 68 | Head | — | Missouri |
| 69 | Cora R. Hawkins | 64 | Wife | — | Kansas |
| 70 | Ira J. Hawkins | 28 | Son | Farmer | Colorado |
| 71 | W. Ray Ball | 54 | Head | Farmer | Kansas |
| 72 | Effie M. Ball | 47 | Wife | — | Nebraska |
| 73 | Howard W. Ball | 25 | Son | Farm Laborer | Colorado |
| 74 | Wayne G. Ball | 21 | Son | Farm Laborer | Colorado |
| 75 | Harold L. Ball | 19 | Son | Farm Laborer | Colorado |
| 76 | Mary H. Ball THIS PERSON | 18 | Daughter | — | Colorado |
| 77 | Lucy Ellen Ball | 12 | Daughter | — | Colorado |
| 78 | Willis L. Ball | 10 | Son | — | Colorado |
| 79 | Ora C. Jensen | 42 | Head | — | Iowa |
| 80 | Lowell R. Jensen | 15 | Son | — | South Dakota |
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)