MD
Mary Douglas — 1930 US Census Record
Model Tree available1930 United States Federal Census · Baltimore, Maryland
Our Model Tree links this Mary Douglas across the 1920, 1930 and 1940 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed), with identified parents George & Mary — first a daughter (b.~1905), then head of a 6-person household.
Age 25
b. ~1905
Female
Daughter
Born: Maryland
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Baltimore, Maryland |
| Surname | Douglas |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Occupation | Lady's Maid |
| Industry | Private family |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Lady'S Maid |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1905 |
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 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Douglas | Daughter | — | 25 | ~1905 |
| Genevieve Turner | Daughter | — | 23 | ~1907 |
| Mary Douglas | Head | — | 45 | ~1885 |
| Maxine Turner | Other | — | 13 | ~1917 |
| Hilda Turner | Other | — | 10 | ~1920 |
| Harvey Turner | Other | — | 24 | ~1906 |
Census Appearances
1920
Baltimore, Maryland
Daughter, age 14
Baltimore, Maryland · implied b. ~1906 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Douglas |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Daughter, age 25
Baltimore, Maryland · implied b. ~1905 — 6 household members
| Surname | Douglas |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Lady's Maid |
| Industry | Private family |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Spouse, age 35
Baltimore-City-County, Maryland · implied b. ~1905 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Douglass |
| Given Name | Mamie A. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 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 Douglas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father George Douglas (~0.92 confidence) and mother Mary Douglas (~0.92 confidence) and mother Mary Douglas (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
George Douglas
b. ~1864
Source father
● Household
· direct · ~0.92
Mother
Mary Douglas
b. ~1872
Source mother
● Household
· direct · ~0.92
Mother
Mary Douglas
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Douglas
Daughter · 1930 · age 25 · b. ~1905 · Maryland
★ You are viewing this record
Sibling
Genevieve Turner
Sibling · 1930 · age 23
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
1930 US Federal Census — Baltimore, Maryland
Open full size
1930 US Federal Census — Baltimore, Maryland
Page Contents
50 people indexed on this census page (ia:1930:15thcensus858unit:0084)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Virginia Clarke | 41 | Head | Housework | Virginia |
| 2 | Virginia Clarke | 18 | Daughter | Housework | Virginia |
| 3 | Irene Holloway | 22 | Daughter | Housework | Virginia |
| 4 | Bernard Holloway | 4 | Grandson | — | Maryland |
| 5 | Casper Holloway | 3 | Grandson | — | Maryland |
| 6 | Wilmer Steadman | 24 | Lodger | Porter | South Carolina |
| 7 | Irene Steadman | 26 | Lodger | Nurse | South Carolina |
| 8 | Edith Johnson | 20 | Lodger | Laborer | Virginia |
| 9 | Lucille Johnson | 18 | Lodger | Housework | Virginia |
| 10 | Wellington Gideon | 30 | Head | Letter Carrier | Maryland |
| 11 | Estelle Gideon | 28 | Wife | — | Maryland |
| 12 | Laura M. Gideon | 8 | Daughter | — | Maryland |
| 13 | Geraldine Gideon | 6 | Daughter | — | Maryland |
| 14 | Bonita J. Gideon | 4 | Daughter | — | Maryland |
| 15 | Mary Douglas | 45 | Head | — | Maryland |
| 16 | Mary Douglas THIS PERSON | 25 | Daughter | Lady'S Maid | Maryland |
| 17 | Harvey Turner | 24 | Son-in-law | Bellman | Maryland |
| 18 | Genevieve Turner | 23 | Daughter | — | Maryland |
| 19 | Maxine Turner | 13 | Granddaughter | — | Maryland |
| 20 | Hilda Turner | 10 | Granddaughter | — | Maryland |
| 21 | Ernest Boston | 58 | Head | Waiter | Maryland |
| 22 | Ida Boston | 60 | Wife | — | Maryland |
| 23 | Elise Rich | 36 | Niece | Janitress | Maryland |
| 24 | Francis Burton | 36 | Lodger | Waitress | Maryland |
| 25 | Carrie Fisher | 22 | Lodger | Cook | North Carolina |
| 26 | Irene Fisher | 13 | Lodger | — | Maryland |
| 27 | Randolph Brooks | 59 | Head | Head Waiter | Virginia |
| 28 | Carrie Brooks | 59 | Wife | — | Virginia |
| 29 | Cyril Pritchett | 30 | Son-in-law | Clerk | Maryland |
| 30 | Edith Pritchett | 30 | Daughter | — | Maryland |
| 31 | Cyril Jr. Pritchett | 2 | Grandson | — | Maryland |
| 32 | Gibson Crockett | 25 | Head | Musician | Virginia |
| 33 | Rebecca Crockett | 21 | Wife | — | Maryland |
| 34 | Elsie Crockett | 27 | Lodger | Cook | Virginia |
| 35 | Sherman Bell | 28 | Head | Chauffeur | Maryland |
| 36 | Lillian Bell | 26 | Wife | Housework | North Carolina |
| 37 | Lillian Bell | 1 | Daughter | — | North Carolina |
| 38 | Ruth Bakewell | 20 | Head | — | Maryland |
| 39 | Sylvester Bakewell | 2 | Son | Grocery Business | Maryland |
| 40 | Arthur Jr. Bakewell | 0 | Son | — | Maryland |
| 41 | Virginia Dixon | 18 | Lodger | Cook | Virginia |
| 42 | Albert Munion | 62 | Head | Carpenter | Maryland |
| 43 | Annie Munion | 62 | Wife | — | Virginia |
| 44 | Ernest Giddrick | 40 | Lodger | Waiter | Maryland |
| 45 | Matilda Giddrick | 40 | Lodger | Cook | Maryland |
| 46 | James Mccord | 53 | Head | — | Minnesota |
| 47 | Joseph Lee | 27 | Head | — | Maryland |
| 48 | Alverta Lee | 25 | Wife | Chauffeur | Virginia |
| 49 | Mary Johnson | 64 | Lodger | Housemaid | Maryland |
| 50 | Lodger Martha | 64 | — | Cook | Maryland |
Pedigree Summary
Mary + 1 sibling
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 1930 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)