MM
Mary Mckinney — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Sumter-County, Florida
Our Model Tree links this Mary Mckinney across the 1930 and 1940 US Censuses in Sumter-County, Florida (XGBoost, ~Confirmed) — first a spouse (b.~1902), then head of a 8-person household.
Age 38
b. ~1902
Female
Spouse
Born: Florida
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Sumter-County, Florida |
| Surname | McKinney |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Florida |
| 1935 Residence (City) | Rutland |
| 1935 Residence (County) | Sumter |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same Place |
| Birth State | Florida |
| Birth Country | United States |
| Birthplace (normalized) | florida |
| Township / Ward | Rutland |
| Est. Birth Year | ~1902 |
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 |
|---|---|---|---|---|
| Rosa Mckinney | Son | — | 18 | ~1922 |
| Daniel Mckinney | Head | — | 45 | ~1895 |
| Mary Mckinney | Spouse | — | 38 | ~1902 |
| Irene Mckinney | Daughter | — | 13 | ~1927 |
| J Mckinney | Son | — | 16 | ~1924 |
| Irma Mckinney | Daughter | — | 5 | ~1935 |
| Derl Mckinney | Son | — | 11 | ~1929 |
| Harold Mckinney | Son | — | 8 | ~1932 |
Census Appearances
1930
Sumter, Florida
Spouse, age 27
Sumter, Florida · implied b. ~1903 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McKinney |
| Given Name | Mary L. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Florida |
| Age at First Marriage | 18 |
| Father's Birthplace | Florida |
| Mother's Birthplace | Florida |
| Can Read/Write | Yes |
| Birth State | Florida |
| Birth Country | United States |
| Birthplace (normalized) | florida |
1940
Sumter-County, Florida
Spouse, age 38
Sumter-County, Florida · implied b. ~1902 — 8 household members
| Surname | McKinney |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Florida |
| 1935 Residence (City) | Rutland |
| 1935 Residence (County) | Sumter |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same Place |
| Birth State | Florida |
| Birth Country | United States |
| Birthplace (normalized) | florida |
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 Mckinney across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Mckinney
Spouse · 1940 · age 38 · b. ~1902 · Florida
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Sumter-County, Florida
Open full size
1940 US Federal Census — Sumter-County, Florida
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00618-00117)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary Martin | 68 | Head | — | Missouri |
| 2 | Carl Martin | 35 | Son | Farmer | Mississippi |
| 3 | Annie Mae Martin | 30 | Daughter-in-law | — | Florida |
| 4 | Ray Lackey | 30 | Lodger | Farm Laborer | Florida |
| 5 | Earnest Martin | 31 | Head | Farmer | Mississippi |
| 6 | Lucile Martin | 20 | Wife | — | Florida |
| 7 | Lenelle Martin | 2 | Daughter | — | Florida |
| 8 | Jenette Martin | 0 | Daughter | — | Florida |
| 9 | — | None | — | — | — |
| 10 | Walter Mckinney | 33 | Head | Bus Driver | Florida |
| 11 | Kay Campbell | 68 | Lodger | — | South Carolina |
| 12 | Daniel L. Mckinney | 45 | Head | Farmer | Florida |
| 13 | Mary Mckinney THIS PERSON | 38 | Wife | — | Florida |
| 14 | Rosa Mckinney | 18 | Son | — | Florida |
| 15 | J. L. Mckinney | 16 | Son | — | Florida |
| 16 | Irene Mckinney | 13 | Daughter | — | Florida |
| 17 | Derl Mckinney | 11 | Son | — | Florida |
| 18 | Harold Mckinney | 8 | Son | — | Florida |
| 19 | Irma Mckinney | 5 | Daughter | — | Florida |
| 20 | Clarence Davis | 65 | Head | Farmer | Ohio |
| 21 | Mary Davis | 47 | Wife | — | Ohio |
| 22 | Willie Pendergrass | 73 | Head | — | Florida |
| 23 | — | None | — | — | — |
| 24 | Johnson Scott | 50 | Head | Farmer | Florida |
| 25 | Susie Scott | 33 | Wife | — | Alabama |
| 26 | Maxfield Scott | 14 | Son | — | Florida |
| 27 | Lester Scott | 8 | Son | — | Florida |
| 28 | David Scott | 4 | Son | — | Florida |
| 29 | N. Thomas | 74 | Head | — | Indiana |
| 30 | Hallie Thomas | 47 | Wife | — | Florida |
| 31 | Ashley H. Toole | 38 | Head | Farmer | Florida |
| 32 | Mary Toole | 29 | Wife | — | Florida |
| 33 | Patricia Toole | 10 | Daughter | — | Florida |
| 34 | Robert Toole | 9 | Son | — | Florida |
| 35 | Albert W. Kelley | 38 | Head | Machinist | South Carolina |
| 36 | Minnie Kelley | 35 | Wife | — | South Carolina |
| 37 | Elizabeth Kelley | 17 | Daughter | — | South Carolina |
| 38 | Ralph Sellers | 37 | Head | Fishing | Florida |
| 39 | Isaac Sellers | 35 | Lodger | Fishing | Georgia |
| 40 | Damon Gordon | 70 | Head | — | Kentucky |
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)