MS
Mary Sparks — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Shelby-County, Tennessee
Our Model Tree links this Mary Sparks across the 1930 and 1940 US Censuses in Shelby-County, Tennessee (XGBoost, ~Confirmed) — first a daughter (b.~1930), then head of a 10-person household.
Age 10
b. ~1930
Female
Daughter
Born: Tennessee
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Shelby-County, Tennessee |
| Surname | Sparks |
| Given Name | Mary Lou |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Tennessee |
| 1935 Residence (City) | C. D. 1 Stewartville precinct |
| 1935 Residence (County) | Shelby |
| Additional Details | |
| Highest Grade | No 2 |
| 1935 Residence | Tennessee |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
| Township / Ward | C D 1 Stewartville Precinct |
| Est. Birth Year | ~1930 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Walter Sparks | Son | — | 12 | ~1928 |
| Charles Sparks | Son | — | 8 | ~1932 |
| Mary Sparks | Daughter | — | 10 | ~1930 |
| Mildred Sparks | Daughter | — | 6 | ~1934 |
| Bobby Sparks | Son | — | 3 | ~1937 |
| John Sparks | Son | — | 4 | ~1936 |
| Walter Sparks | Head | — | 40 | ~1900 |
| Helen Sparks | Daughter | — | 14 | ~1926 |
| Helen Sparks | Son | — | 19 | ~1921 |
| Thelma Sparks | Spouse | — | 37 | ~1903 |
Census Appearances
1930
Tipton, Tennessee
Daughter, age
Tipton, Tennessee · implied b. ~1930 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sparks |
| Given Name | Mary Lou |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Tennessee |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
1940
Shelby-County, Tennessee
Daughter, age 10
Shelby-County, Tennessee · implied b. ~1930 — 10 household members
| Surname | Sparks |
| Given Name | Mary Lou |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Tennessee |
| 1935 Residence (City) | C. D. 1 Stewartville precinct |
| 1935 Residence (County) | Shelby |
| Highest Grade | No 2 |
| 1935 Residence | Tennessee |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
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 Sparks across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Sparks
Daughter · 1940 · age 10 · b. ~1930 · Tennessee
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Sibling
John Sparks
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Sparks
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Sparks
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Bobby Sparks
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Sparks
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Sparks
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Sparks
Sibling · 1940 · age 12
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 — Shelby-County, Tennessee
Open full size
1940 US Federal Census — Shelby-County, Tennessee
Page Contents
13 people indexed on this census page (nara:1940:m-t0627-03934-00124)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Maridell Walker | 28 | Cousin | — | Mississippi |
| 2 | Walter Sparks | 40 | Head | Farmer | Tennessee |
| 3 | Thelma Sparks | 37 | Wife | — | Tennessee |
| 4 | Helen W. C. Sparks | 19 | Son | Carpenter C. C. C. | Tennessee |
| 5 | Helen Louise Sparks | 14 | Daughter | — | Tennessee |
| 6 | Walter Frank Sparks | 12 | Son | — | Tennessee |
| 7 | Mary Lou Sparks THIS PERSON | 10 | Daughter | — | Tennessee |
| 8 | Charles Sparks | 8 | Son | — | Tennessee |
| 9 | Mildred Sparks | 6 | Daughter | — | Tennessee |
| 10 | John Ellis Sparks | 4 | Son | — | Tennessee |
| 11 | Bobby Sparks | 3 | Son | — | Tennessee |
| 12 | Odell Jefferson | 30 | Head | Farmer | Tennessee |
| 13 | Ida Lois Jefferson | 24 | Wife | — | Tennessee |
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)