MJ
Mary Johnson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Shelby-County, Tennessee
Our Model Tree links this Mary Johnson across the 1920, 1930 and 1940 US Censuses in Shelby-County, Tennessee (XGBoost, ~Confirmed), with identified parents Ada & Lula — first a daughter (b.~1904), then head of a 4-person household.
Age 36
b. ~1904
Female
Daughter
Born: Tennessee
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Shelby-County, Tennessee |
| Surname | Johnson |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Tennessee |
| 1935 Residence (City) | Memphis City |
| 1935 Residence (County) | Shelby |
| Additional Details | |
| Occupation | Cook |
| Industry | Extra Domestic |
| Class of Worker | PW |
| Income (1939) | 24 |
| Highest Grade | No 7 |
| 1935 Residence | Tennessee |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
| Occupation | Cook |
| Township / Ward | Memphis City |
| Est. Birth Year | ~1904 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Johnson | Daughter | — | 36 | ~1904 |
| Ada Blalock | Head | — | 52 | ~1888 |
| Henry Pull | Other | — | 15 | ~1925 |
| Hill Johnson | Other | — | 42 | ~1898 |
Census Appearances
Daughter, age 13
Shelby, Tennessee · implied b. ~1907 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Marie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Tennessee |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Mississippi |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
1930
Shelby, Tennessee
Daughter, age 23
Shelby, Tennessee · implied b. ~1907 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | Black |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Tennessee |
| Age at First Marriage | 18 |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Occupation | Cook |
| Industry | Private |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
1940
Shelby-County, Tennessee
Daughter, age 36
Shelby-County, Tennessee · implied b. ~1904 — 4 household members
| Surname | Johnson |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 36 |
| Marital Status | Married |
| Birthplace | Tennessee |
| 1935 Residence (City) | Memphis City |
| 1935 Residence (County) | Shelby |
| Occupation | Cook |
| Industry | Extra Domestic |
| Class of Worker | PW |
| Income (1939) | 24 |
| Highest Grade | No 7 |
| 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 Johnson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Ada Blalock (~0.92 confidence) and mother Lula Hoyle (~0.92 confidence) and father Kenny Johnson (~0.92 confidence) and mother Sarah Johnson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Ada Blalock
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Lula Hoyle
b. ~1882
Source mother
● Household
· direct · ~0.92
Father
Kenny Johnson
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Sarah Johnson
b. ~1874
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Johnson
Daughter · 1940 · age 36 · b. ~1904 · 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-t0627-03966-00017)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Cora Askin | 30 | Daughter | — | Tennessee |
| 42 | Earnest Theron Askin | 3 | Grand-son | — | Tennessee |
| 43 | Percy M. Johnson | 52 | Head | Laborer | Mississippi |
| 44 | Lula S. Johnson | 53 | Wife | Laundress | Mississippi |
| 45 | Cecelia Danridge | 85 | Mother-in-law | — | Mississippi |
| 46 | Gertrude Brown | 32 | Head | Servant | Mississippi |
| 47 | James S. Darling | 10 | Son | — | Tennessee |
| 48 | Janice Darling | 58 | Mother | — | Mississippi |
| 49 | Scott Mason | 52 | Head | Carpenter | Mississippi |
| 50 | Alice Mason | 47 | Wife | Maid | Arkansas |
| 51 | Marion S. Bayles | 48 | Head | Mechanic | Virginia |
| 52 | Willie Mcneil | 36 | Wife | — | Arkansas |
| 53 | Clarence Mcneil | 9 | Son | — | Tennessee |
| 54 | Marion Jr. Mcneil | 13 | Son | — | Tennessee |
| 55 | John Jarnigan | 46 | Head | Repair-Man | Mississippi |
| 56 | Annie M. Jarnigan | 40 | Wife | — | Mississippi |
| 57 | Minnie Lou Jarnigan | 1 | Daughter | — | Tennessee |
| 58 | Douglas Jarnigan | 8 | Son | — | Tennessee |
| 59 | Paul Jarnigan | 5 | Son | — | Tennessee |
| 60 | Anita Jarnigan | 3 | Daughter | — | Tennessee |
| 61 | Hazel Raunsville | 21 | Daughter | — | Tennessee |
| 62 | John B. Harker | 43 | Head | Pastor | Tennessee |
| 63 | Reberta Harker | 39 | Wife | Laborer | Alabama |
| 64 | Earnestine Bryant | 52 | Mother-in-law | — | Alabama |
| 65 | Lewis Hester | 52 | Head | Brakeman | Alabama |
| 66 | Merdess Hester | 46 | Wife | — | Texas |
| 67 | Elliot Hella | 51 | Head | Messenger | Mississippi |
| 68 | Ellie B. Hella | 40 | Wife | — | Mississippi |
| 69 | Thelma Hella | 19 | Daughter | — | Mississippi |
| 70 | Sam Lawrence | 17 | Son | Porter | Mississippi |
| 71 | Son Raymond | None | M | — | — |
| 72 | Son Willie | None | M | Bank | — |
| 73 | Daughter-In-Law Caroline | None | F | Amer Snuff Co | — |
| 74 | John H. Haynes | 62 | Head | Porter | Tennessee |
| 75 | Louella Haynes | 61 | Wife | — | Tennessee |
| 76 | Aliene Haynes | 41 | Daughter | — | Tennessee |
| 77 | Ada Blalock | 52 | Head | Maid | Mississippi |
| 78 | Hill Johnson | 42 | Son-in-law | Laborer | Tennessee |
| 79 | Mary Johnson THIS PERSON | 36 | Daughter | Cook | Tennessee |
| 80 | Henry Pull | 15 | Boarder | — | Tennessee |
Related Census Records
Pedigree Summary
Mary
Gen 1 · 4 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)