MK
Mary King — 1930 US Census Record
Model Tree available1930 United States Federal Census · Baltimore, Maryland
Our Model Tree links this Mary King across the 1920, 1930 and 1940 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed), with identified parents Herbert & Stephen — first a daughter (b.~1913), then head of a 5-person household.
Age 17
b. ~1913
Female
Daughter
Born: Maryland
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Baltimore, Maryland |
| Surname | King |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1913 |
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 1930 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary King | Daughter | — | 17 | ~1913 |
| Herbert King | Head | — | 45 | ~1885 |
| Herdman Schwatka | Other | — | 41 | ~1889 |
| Herdman Schwatka | Other | — | 18 | ~1912 |
| Matilda King | Spouse | — | 41 | ~1889 |
Census Appearances
1920
Balto, Maryland
Daughter, age 6
Balto, Maryland · implied b. ~1914 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | King |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 6 |
| 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 17
Baltimore, Maryland · implied b. ~1913 — 5 household members
| Surname | King |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
Daughter, age 28
Baltimore-City-County, Maryland · implied b. ~1912 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | King |
| Given Name | Marie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Occupation | Office Clerk |
| Industry | Spice Mfg. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 900 |
| 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 King across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: father Herbert King (~0.92 confidence) and father Stephen King (~0.92 confidence) and father Leo King (~0.92 confidence) and mother Carrie King (~0.92 confidence) and mother Matilda King (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Herbert King
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Stephen King
b. ~1885
Source father
● Household
· direct · ~0.92
Father
Leo King
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Carrie King
b. ~1883
Source mother
● Household
· direct · ~0.92
Mother
Matilda King
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary King
Daughter · 1930 · age 17 · b. ~1913 · Maryland
★ You are viewing this record
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:1930:15thcensus871unit:0553)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Charles Frohl | 60 | Head | Accountant | Maryland |
| 2 | Lillian Frohl | 50 | Wife | None | Maryland |
| 3 | Albert Almony | 39 | nephew | Secret Service | Alabama |
| 4 | Lula Almony | 26 | niece | None | North Carolina |
| 5 | Laura Hullinger | 70 | sister-in-law | Sales Lady | Maryland |
| 6 | Frederick Admas | 25 | Head | Engineer | Maryland |
| 7 | Helen Admas | 20 | Wife | None | Maryland |
| 8 | Melvin Gwyn | 43 | Head | Manufacturer | Maryland |
| 9 | Elizabeth Gwyn | 41 | Wife | None | Maryland |
| 10 | Gemmill Gwyn | 18 | son | None | Maryland |
| 11 | Richard Gwyn | 14 | son | None | Maryland |
| 12 | Elizabeth Bensel | 35 | servant | Servant | Maryland |
| 13 | George Burrows | 46 | Head | Manager | District Columbia |
| 14 | Gertrude Burrows | 45 | Wife | None | Maryland |
| 15 | Amelia Burrows | 14 | daughter | None | Maryland |
| 16 | Amelia Dorsch | 36 | servant | Servant | Maryland |
| 17 | Herbert King | 45 | Head | Lawyer | Maryland |
| 18 | Matilda King | 41 | Wife | None | Maryland |
| 19 | Herdman Schwatka | 41 | boarder | Lawyer | Maryland |
| 20 | Herdman Jr Schwatka | 18 | boarder | Clerk | Maryland |
| 21 | Mary King THIS PERSON | 17 | daughter | None | Maryland |
| 22 | J. G. Spatz | 63 | Head | None | Maryland |
| 23 | Sarah Spatz | 49 | Wife | None | Pennsylvania |
| 24 | Paul Spatz | 9 | son | None | Maryland |
| 25 | Katherine Spatz | 7 | daughter | None | Maryland |
| 26 | James Newbold | 60 | Head | Inspector | Maryland |
| 27 | Alma Newbold | 45 | Wife | None | Maryland |
| 28 | Carl Link | 63 | Head | Linotypist | Maryland |
| 29 | Grace Link | 61 | Wife | None | Maryland |
| 30 | Marie Gumstein | 30 | daughter | Secretary | Maryland |
| 31 | Grace Gumstein | 14 | granddaughter | None | Maryland |
| 32 | Jane Gumstein | 12 | granddaughter | None | Maryland |
| 33 | Julius Knight | 42 | Head | Vice President | South Carolina |
| 34 | Pauline Knight | 40 | Wife | None | Maryland |
| 35 | Lyle Knight | 18 | son | None | Maryland |
| 36 | Mary Knight | 17 | daughter | None | Maryland |
| 37 | Julius Jr. Knight | 15 | son | None | Maryland |
| 38 | Richard Watkins | 38 | Head | Manager | Maryland |
| 39 | Anna Watkins | 38 | Wife | None | Maryland |
| 40 | Charles Watkins | 11 | son | None | Maryland |
| 41 | Catherine Watkins | 9 | daughter | None | Maryland |
| 42 | Charles Reimer | 70 | Head | None | Maryland |
| 43 | Charles Jr Reimer | 26 | son | Agent | Maryland |
| 44 | Elizabeth Reimer | 26 | daughter | None | Maryland |
| 45 | Doris Reimer | 1 | granddaughter | None | Maryland |
| 46 | Mamie Krantz | 53 | servant | Servant | Maryland |
| 47 | Jessie Little | 30 | Head | Bookkeeper | Maryland |
| 48 | Edna Little | 46 | sister | Stenographer | Maryland |
| 49 | Ruth Little | 44 | sister | Stenographer | Maryland |
| 50 | Charles Little | 28 | brother | Chauffeur | Maryland |
Related Census Records
Pedigree Summary
Mary
Gen 1 · 5 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)