MW
Mary Williams — 1940 US Census Record
Model Tree available1940 United States Federal Census · Shelby-County, Tennessee
Our Model Tree links this Mary Williams across the 1920, 1930 and 1940 US Censuses in Shelby-County, Tennessee (XGBoost, ~Confirmed), with identified parents Bill & Billy — first a spouse (b.~1919), then head of a 6-person household.
Age 21
b. ~1919
Female
Spouse
Born: Tennessee
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Shelby-County, Tennessee |
| Surname | Williams |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 21 |
| Marital Status | Married |
| Birthplace | Tennessee |
| 1935 Residence (City) | Memphis City |
| 1935 Residence (County) | Shelby |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
| Township / Ward | Memphis City |
| Est. Birth Year | ~1919 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Helene Williams | Daughter | — | 1 | ~1939 |
| Edward Williams | Head | — | 23 | ~1917 |
| Virginia Williams | Other | — | 65 | ~1875 |
| Lawson Williams | Son | — | 2 | ~1938 |
| Edward Williams | Son | — | 4 | ~1936 |
| Mary Williams | Spouse | — | 21 | ~1919 |
Census Appearances
1920
Shelby, Tennessee
Daughter, age 3
Shelby, Tennessee · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Tennessee |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Can Read | No |
| Can Write | No |
| Speaks English | No |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
1930
Shelby, Tennessee
Daughter, age 12
Shelby, Tennessee · implied b. ~1918 — 13 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williams |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Tennessee |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Can Read/Write | Yes |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
1940
Shelby-County, Tennessee
Spouse, age 21
Shelby-County, Tennessee · implied b. ~1919 — 6 household members
| Surname | Williams |
| Given Name | Mary |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | Black |
| Age | 21 |
| Marital Status | Married |
| Birthplace | Tennessee |
| 1935 Residence (City) | Memphis City |
| 1935 Residence (County) | Shelby |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| 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 Williams across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Bill Blades (~0.92 confidence) and father Billy Williams (~0.92 confidence) and mother Blanche Williams (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Bill Blades
b. ~1869
Source father
● Household
· direct · ~0.92
Father
Billy Williams
b. ~1898
Source father
● Household
· direct · ~0.92
Mother
Blanche Williams
b. ~1899
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Williams
Spouse · 1940 · age 21 · b. ~1919 · Tennessee
★ 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 — 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-t0627-03964-00387)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Amadora Adams | 30 | Son in Law | — | Tennessee |
| 2 | Minnie M. Adams | 7 | Nephew | — | Tennessee |
| 3 | Harrison Patterson | 50 | Head | Artist | Mississippi |
| 4 | Lily Patterson | 38 | Wife | — | Mississippi |
| 5 | Cooper Moss | 36 | Head | Operator Machine | Tennessee |
| 6 | Lennie Moss | 26 | Wife | — | Tennessee |
| 7 | Richard Devern | 37 | Head | Presser | Tennessee |
| 8 | Minnie Devern | 43 | Wife | — | Tennessee |
| 9 | Richard Lee Devern | 13 | Daughter | — | Arkansas |
| 10 | Willie May Richmond | 6 | Niece | — | Tennessee |
| 11 | Martha May Richmond | 5 | Niece | — | Tennessee |
| 12 | Mary Hawkins | 42 | Head | Laundress | Tennessee |
| 13 | Dolly Hawkins | 26 | Daughter | Cook | Tennessee |
| 14 | Carrie Hawkins | 22 | Daughter | Maid | Tennessee |
| 15 | Edward G. Williams | 23 | Head | Laborer | Tennessee |
| 16 | Mary Williams THIS PERSON | 21 | Wife | — | Tennessee |
| 17 | Edward G. Jr. Williams | 4 | Son | — | Tennessee |
| 18 | Lawson F. Williams | 2 | Son | — | Tennessee |
| 19 | Helene Marie Williams | 1 | Daughter | — | Tennessee |
| 20 | Virginia Williams | 65 | Mother | — | Tennessee |
| 21 | Patsy Boone | 25 | Head | Maid | Tennessee |
| 22 | Emmett Brigid | 36 | Lodger | Truck Driver | Tennessee |
| 23 | Elvin Devern | 25 | Lodger | Laborer | Tennessee |
| 24 | Alma Devern | 26 | Lodger | Maid | Mississippi |
| 25 | Mary Seay | 66 | Head | — | Tennessee |
| 26 | George Seay | 37 | Son | Driver | Tennessee |
| 27 | Willie May Boone | 5 | Daughter | — | Tennessee |
| 28 | Barbara Jean Boone | 1 | Daughter | — | Tennessee |
| 29 | Vaneda Winfrey | 20 | Lodger | Maid | Mississippi |
| 30 | Ben Auburn | 55 | Head | Janitor | Arkansas |
| 31 | Mildred Auburn | 30 | Wife | — | Pennsylvania |
| 32 | Auburn J. Auburn | 10 | Son | — | Tennessee |
| 33 | Horace Auburn | 5 | Son | — | Tennessee |
| 34 | Morris Jeter | 50 | Head | Janitor | Tennessee |
| 35 | Clyde Jeter | 17 | Son | Janitor | Tennessee |
| 36 | Jessie Tuggle | 57 | Sister | — | Tennessee |
| 37 | Amos Jackson | 16 | Son | Janitor Helper | Tennessee |
| 38 | Jerry Louch | 36 | Head | Machine Operator | Mississippi |
| 39 | Emma Louch | 28 | Wife | Maid | Tennessee |
| 40 | Geraldine Louch | 12 | Daughter | — | Tennessee |
Pedigree Summary
Mary
Gen 1 · 3 parents
~0.92
Max depth 4 (1900–1950 window)
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)