MW
Mary White — 1940 US Census Record
Model Tree available1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this Mary White across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed), with identified parents Leroy & Idal — first a daughter (b.~1918), then head of a 9-person household.
Age 22
b. ~1918
Female
Daughter
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | White |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Occupation | Maid |
| Industry | Private Home |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 520 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Maid |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1918 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Helen White | Daughter | — | 14 | ~1926 |
| Catherine White | Daughter | — | 16 | ~1924 |
| Mary White | Daughter | — | 22 | ~1918 |
| Dorothy White | Daughter | — | 21 | ~1919 |
| Cecelia White | Daughter | — | 13 | ~1927 |
| Leroy White | Head | — | 56 | ~1884 |
| Leroy White | Son | — | 18 | ~1922 |
| James White | Son | — | 19 | ~1921 |
| Idal White | Spouse | — | 50 | ~1890 |
Census Appearances
1920
Baltimore, Maryland
Other, age 2
Baltimore, Maryland · implied b. ~1918 — 50 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | White |
| Given Name | Mary |
| Relationship to Head | Prisoner's Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | North Carolina |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Other, age 13
Baltimore, Maryland · implied b. ~1917 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | White |
| Given Name | Marie |
| Relationship to Head | Sister |
| Sex | F |
| Color / Race | Black |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Daughter, age 22
Baltimore-City-County, Maryland · implied b. ~1918 — 9 household members
| Surname | White |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Occupation | Maid |
| Industry | Private Home |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 520 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 White across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Leroy White (~0.92 confidence) and mother Idal White (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Leroy White
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Idal White
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary White
Daughter · 1940 · age 22 · b. ~1918 · Maryland
★ You are viewing this record
Sibling
Leroy White
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James White
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Cecelia White
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Catherine White
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen White
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy White
Sibling · 1940 · age 21
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 — Baltimore-City-County, Maryland
Open full size
1940 US Federal Census — Baltimore-City-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01526-00578)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mccloud Thompson | 50 | Head | Butler | Maryland |
| 2 | Hattie Thompson | 34 | Wife | Presser | Maryland |
| 3 | Lucy Williams | 70 | Aunt | — | Maryland |
| 4 | Theresa Bannister | 25 | Niece | — | Maryland |
| 5 | John Bannister | 23 | Nephew | Maid | Maryland |
| 6 | Allan Gordon | 57 | Head | Truck Driver | Maryland |
| 7 | Lillian Gordon | 42 | Wife | Laborer | Maryland |
| 8 | Bertha Gordon | 21 | Daughter | Nurse | Maryland |
| 9 | Charles Barney | 20 | Nephew | Maid | Maryland |
| 10 | Mary Barney | 21 | Niece | Laborer | Maryland |
| 11 | Lincoln Strother | 40 | Head | Hair Dresser | Maryland |
| 12 | Estelle Strother | 30 | Wife | Truck Driver | Maryland |
| 13 | Daniel Robinson | 58 | Head | Maid | Maryland |
| 14 | Lonie Robinson | 37 | Wife | Janitor | Maryland |
| 15 | Charles Robinson | 17 | Son | — | Maryland |
| 16 | Wendell Wilson | 45 | Head | Bartender | Maryland |
| 17 | Dorothy Wilson | 30 | Wife | — | Maryland |
| 18 | Robert Wilson | 80 | Father | — | Maryland |
| 19 | Baker St. French | None | — | — | — |
| 20 | Arthur Fitch | 45 | Head | Store Keeper | Maryland |
| 21 | Mary Fitch | 38 | Wife | — | Maryland |
| 22 | Edward Fitch | 15 | Son | — | Maryland |
| 23 | Stanley Fitch | 6 | Son | — | Maryland |
| 24 | Sophia Barman | 60 | Mother | — | Maryland |
| 25 | John Duckett | 38 | Lodger | Laborer | Maryland |
| 26 | Emma Jones | 28 | Lodger | Maid | Maryland |
| 27 | Leroy White | 56 | Head | Laborer | Maryland |
| 28 | Idal White | 50 | Wife | House Keeper | Maryland |
| 29 | Mary White THIS PERSON | 22 | Daughter | Maid | Maryland |
| 30 | Dorothy White | 21 | Daughter | Maid | Maryland |
| 31 | James White | 19 | Son | Laborer | Maryland |
| 32 | Leroy Jr. White | 18 | Son | Attendant | Maryland |
| 33 | Catherine White | 16 | Daughter | — | Maryland |
| 34 | Helen White | 14 | Daughter | — | Maryland |
| 35 | Cecelia White | 13 | Daughter | — | Maryland |
| 36 | Jessie Jones | 46 | Head | Laborer | Maryland |
| 37 | Agnes Jones | 42 | Wife | Laundress | Maryland |
| 38 | Andrew Smith | 42 | Lodger | Laborer | Maryland |
| 39 | Thomas Flood | 38 | Head | Laborer | Maryland |
| 40 | Flora Flood | 36 | Wife | Maid | Maryland |
Pedigree Summary
Mary + 6 siblings
Gen 1 · 2 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)