MW
Mary Wallace — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Shelby-County, Tennessee
Our Model Tree links this Mary Wallace across the 1920, 1930 and 1940 US Censuses in Shelby-County, Tennessee (XGBoost, ~Confirmed) — first a spouse (b.~1900), then head of a 5-person household.
Age 40
b. ~1900
Female
Spouse
Born: Mississippi
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Shelby-County, Tennessee |
| Surname | Wallace |
| Given Name | Mary |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Mississippi |
| 1935 Residence (City) | Memphis City |
| 1935 Residence (County) | Shelby |
| Additional Details | |
| Hours Worked | 6 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
| Township / Ward | Memphis City |
| Est. Birth Year | ~1900 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Martha Wallace | Daughter | — | 10 | ~1930 |
| Lee Wallace | Head | — | 45 | ~1895 |
| William Wallace | Other | — | 32 | ~1908 |
| Lee Wallace | Son | — | 14 | ~1926 |
| Mary Wallace | Spouse | — | 40 | ~1900 |
Census Appearances
1920
Shelby, Tennessee
Spouse, age 25
Shelby, Tennessee · implied b. ~1895 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wallace |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Mississippi |
| Father's Birthplace | Mississippi |
| Mother's Birthplace | Mississippi |
| Occupation | Laborer |
| Industry | Oil Mill |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
1930
Shelby, Tennessee
Spouse, age 31
Shelby, Tennessee · implied b. ~1899 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Wallace |
| Given Name | Mary E |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Mississippi |
| Age at First Marriage | 24 |
| Father's Birthplace | Mississippi |
| Mother's Birthplace | Mississippi |
| Can Read/Write | Yes |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
1940
Shelby-County, Tennessee
Spouse, age 40
Shelby-County, Tennessee · implied b. ~1900 — 5 household members
| Surname | Wallace |
| Given Name | Mary |
| Relationship to Head | wife |
| Sex | F |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Mississippi |
| 1935 Residence (City) | Memphis City |
| 1935 Residence (County) | Shelby |
| Hours Worked | 6 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
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 Wallace across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Wallace
Spouse · 1940 · age 40 · b. ~1900 · Tennessee
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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 — Shelby-County, Tennessee
Open full size
1940 US Federal Census — Shelby-County, Tennessee
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03964-00230)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Clyde C. Baker | 44 | Head | Salesman | Kentucky |
| 2 | Bess (X) Baker | 41 | Wife | — | Kentucky |
| 3 | Betty Baker | 5 | daughter | — | Tennessee |
| 4 | William Brower | 34 | Head | Service Manager | Mississippi |
| 5 | Gladys Brower | 30 | wife | Operator | Mississippi |
| 6 | Turner Laurence | 39 | Head | Mechanic | Mississippi |
| 7 | Mary Laurence | 40 | wife | — | Mississippi |
| 8 | Sarah Laurence | 19 | daughter | — | Mississippi |
| 9 | Edwin Laurence | 17 | son | — | Mississippi |
| 10 | Robert G. Watkins | 56 | Head | Manager | Mississippi |
| 11 | Robert G. Jr Watkins | 25 | son | Attorney | Tennessee |
| 12 | Eugene Watkins | 21 | son | — | Tennessee |
| 13 | Jesse M. Vineyard | 23 | nephew | Attorney | Arkansas |
| 14 | Sarah Alice Vineyard | 23 | niece | Teacher | Arkansas |
| 15 | Lena Vineyard | 20 | niece | — | Arkansas |
| 16 | Harvey Pearce | 60 | brother-in-law | Vice President | Mississippi |
| 17 | Irene Pearce | 54 | sister | — | Mississippi |
| 18 | Elizabeth Pearce | 29 | niece | Cashier | Tennessee |
| 19 | Ross H. Holcomb | 58 | Head | Manager | Michigan |
| 20 | Nolah Holcomb | 53 | wife | — | Ohio |
| 21 | Lee (X) Wallace | 45 | Head | Manager | Mississippi |
| 22 | Mary Wallace THIS PERSON | 40 | wife | — | Mississippi |
| 23 | Lee Jr Wallace | 14 | son | — | Tennessee |
| 24 | Martha Claire Wallace | 10 | daughter | — | Tennessee |
| 25 | William Wallace | 32 | brother | Engineer | Mississippi |
| 26 | William King | 44 | Head | Estimator | Mississippi |
| 27 | Maggie King | 40 | wife | — | Mississippi |
| 28 | Tom King | 19 | son | Time Keeper | Mississippi |
| 29 | Elizabeth King | 16 | daughter | Student | Mississippi |
| 30 | Edward King | 75 | father | — | Mississippi |
| 31 | Milton Holbe | 42 | Head | Salesman | Tennessee |
| 32 | Louise Holbe | 40 | wife | Manager | Tennessee |
| 33 | Espy Holbe | 45 | brother-in-law | Plumber | Tennessee |
| 34 | Louis Carpenter | 42 | Head | — | Tennessee |
| 35 | Estelle Carpenter | 38 | wife | — | Mississippi |
| 36 | Eleanor Carpenter | 20 | daughter | Stenographer | Mississippi |
| 37 | Ned Hill | 29 | Head | Salesman | Kentucky |
| 38 | Linda Hill | 24 | wife | — | Mississippi |
| 39 | William Hill | 3 | son | — | Kentucky |
| 40 | David (X) Read | 60 | Head | Salesman | Mississippi |
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)