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Mary Ballard — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Wyandotte-County, Kansas
Our Model Tree links this Mary Ballard across the 1920, 1930 and 1940 US Censuses in Wyandotte-County, Kansas (XGBoost, ~Confirmed) — first a spouse (b.~1870), then head of a 3-person household.
Age 70
b. ~1870
Female
Spouse
Born: Kentucky
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Wyandotte-County, Kansas |
| Surname | Ballard |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 70 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Delaware Township |
| 1935 Residence (County) | Wyandotte |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | G 8 |
| 1935 Residence | Same House |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Township / Ward | Delaware Township |
| Est. Birth Year | ~1870 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Thomas Ballard | Head | — | 73 | ~1867 |
| George Ballard | Son | — | 31 | ~1909 |
| Mary Ballard | Spouse | — | 70 | ~1870 |
Census Appearances
1920
Wyandotte, Kansas
Spouse, age 50
Wyandotte, Kansas · implied b. ~1870 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ballard |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Kentucky |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Wyandotte, Kansas
Other, age 61
Wyandotte, Kansas · implied b. ~1869 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ballard |
| Given Name | Mary |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 61 |
| Marital Status | Married |
| Birthplace | Kentucky |
| Age at First Marriage | 17 |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Wyandotte-County, Kansas
Spouse, age 70
Wyandotte-County, Kansas · implied b. ~1870 — 3 household members
| Surname | Ballard |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 70 |
| Marital Status | Married |
| Birthplace | Kentucky |
| 1935 Residence (City) | Delaware Township |
| 1935 Residence (County) | Wyandotte |
| Class of Worker | 0 |
| Highest Grade | G 8 |
| 1935 Residence | Same House |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
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 Ballard across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Mary Ballard
Spouse · 1940 · age 70 · b. ~1870 · Kansas
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Wyandotte-County, Kansas
Open full size
1940 US Federal Census — Wyandotte-County, Kansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01266-00333)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Raymond Groves | 10 | Son | — | Iowa |
| 2 | Cornelius Groves | 8 | Son | — | Missouri |
| 3 | William D. Stewart | 70 | Head | — | Missouri |
| 4 | Fred B. Groves | 56 | Head | Laborer | Kansas |
| 5 | Minnie Groves | 49 | Wife | — | Missouri |
| 6 | Junius Groves | 49 | Head | Laborer | Kansas |
| 7 | Amanda Groves | 49 | Wife | — | Oklahoma |
| 8 | Ledrue Groves | 20 | Son | Laborer | Kansas |
| 9 | Theora Groves | 17 | Daughter | — | Kansas |
| 10 | Lillian Groves | 16 | Daughter | — | Kansas |
| 11 | Junius Jr. Groves | 13 | Son | — | Kansas |
| 12 | Helen A. Groves | 9 | Daughter | — | Kansas |
| 13 | Ora B. Groves | 53 | Head | Laborer | Kansas |
| 14 | Marcella Groves | 41 | Wife | — | Colorado |
| 15 | Barbara Groves | 6 | Daughter | — | Kansas |
| 16 | Walter Groves | 57 | Head | Laborer | Kansas |
| 17 | Alice Groves | 46 | Wife | — | England |
| 18 | Harold J. Groves | 17 | Son | — | Kansas |
| 19 | Wesley Groves | 13 | Son | — | Kansas |
| 20 | Edward Groves | 10 | Son | — | Kansas |
| 21 | Roy C. D. Williamson | 71 | Head | Farmer | Ohio |
| 22 | Minnie Williamson | 67 | Wife | — | Kansas |
| 23 | Raymond Trent | 38 | Head | Laborer | Missouri |
| 24 | Laura B. Trent | 30 | Wife | — | Missouri |
| 25 | Dale Alleman | 9 | Stepson | — | Kansas |
| 26 | Donald Alleman | 7 | Stepson | — | Kansas |
| 27 | Thomas J. Ballard | 73 | Head | — | West Virginia |
| 28 | Mary Ballard THIS PERSON | 70 | Wife | — | Kentucky |
| 29 | George S. Ballard | 31 | Son | Well Driller | Kansas |
| 30 | Clarence O. Allen | 36 | Head | Engineer | Texas |
| 31 | Maggie A. Allen | 31 | Wife | — | Oklahoma |
| 32 | Elmer L. Allen | 16 | Son | — | Oklahoma |
| 33 | Frances J. Allen | 13 | Daughter | — | Oklahoma |
| 34 | Donald L. Allen | 10 | Son | — | Kansas |
| 35 | Darlene Allen | 7 | Daughter | — | Kansas |
| 36 | Frank E. Foreman | 49 | Head | Still Cleaner | Kansas |
| 37 | Maude E. Foreman | 42 | Wife | — | Kansas |
| 38 | Frank Jr. Foreman | 16 | Son | — | Kansas |
| 39 | Nadine Foreman | 13 | Daughter | — | Kansas |
| 40 | Billie Foreman | 11 | Son | — | Kansas |
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)