MK
Margaret King — 1940 US Census Record
Model Tree available1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this Margaret King across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed), with identified parents Rose & Leo — first a daughter (b.~1915), then head of a 5-person household.
Age 25
b. ~1915
Female
Daughter
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | King |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Occupation | Sub. Teacher |
| Industry | Public School |
| Class of Worker | GW |
| Hours Worked | 25 |
| Income (1939) | 216 |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Sub. Teacher |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1915 |
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 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret King | Daughter | — | 25 | ~1915 |
| Louise King | Daughter | — | 26 | ~1914 |
| Agnes King | Daughter | — | 23 | ~1917 |
| Marie King | Daughter | — | 28 | ~1912 |
| Leo King | Head | — | 57 | ~1883 |
Census Appearances
1920
Baltimore, Maryland
Daughter, age 5
Baltimore, Maryland · implied b. ~1915 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | King |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Daughter, age 15
Baltimore, Maryland · implied b. ~1915 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | King |
| Given Name | Margaret |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Maryland |
| Age at First Marriage | 15 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Daughter, age 25
Baltimore-City-County, Maryland · implied b. ~1915 — 5 household members
| Surname | King |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Occupation | Sub. Teacher |
| Industry | Public School |
| Class of Worker | GW |
| Hours Worked | 25 |
| Income (1939) | 216 |
| Highest Grade | C 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 Margaret King across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Rose King (~0.92 confidence) and father Leo King (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Rose King
b. ~1862
Source mother
● Household
· direct · ~0.92
Father
Leo King
b. ~1883
Source father
● Household
· direct · ~0.92
This person
Anchor record
Margaret King
Daughter · 1940 · age 25 · b. ~1915 · Maryland
★ You are viewing this record
Sibling
Agnes King
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marie King
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Louise King
Sibling · 1940 · age 26
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-t0627-01508-00661)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Catherine M Hoffman | 37 | Wife | — | Maryland |
| 2 | Joseph Yuwrotkowski | 66 | Head | — | Poland |
| 3 | Maryanna Yuwrotkowski | 55 | Wife | — | Poland |
| 4 | Frank Yuwrotkowski | 30 | Son | Steward | New York |
| 5 | Stella Yuwrotkowski | 24 | Daughter | Operator | New York |
| 6 | Bertha Yuwrotkowski | 21 | Daughter | Operator | New York |
| 7 | Agnes Yuwrotkowski | 14 | Daughter | — | New York |
| 8 | Michael Schmidt | 39 | Head | Cook | Maryland |
| 9 | Jennie Schmidt | 32 | Wife | — | Maryland |
| 10 | John Plocennik | 50 | Head | Laborer | Poland |
| 11 | Helen Plocennik | 45 | Wife | — | Poland |
| 12 | Stanley Plocennik | 19 | Son | New Worker | Maryland |
| 13 | Eugene Plocennik | 17 | Son | Pin Boy | Maryland |
| 14 | Helen Plocennik | 15 | Daughter | — | Maryland |
| 15 | Wenceslaus Plocennik | 14 | Son | — | Maryland |
| 16 | Appolonia Plocennik | 12 | Daughter | — | Maryland |
| 17 | Mary Plocennik | 8 | Daughter | — | Maryland |
| 18 | John Plocennik | 5 | Son | — | Maryland |
| 19 | Louis Younger | 39 | Head | Floorman | Maryland |
| 20 | Carrie Younger | 35 | Wife | — | Maryland |
| 21 | Julia J. Younger | 15 | Daughter | — | Maryland |
| 22 | Florence Younger | 11 | Daughter | — | Maryland |
| 23 | Dorothy T. Younger | 3 | Daughter | — | Maryland |
| 24 | Beatrice Wisniewski | 39 | Head | Proprietress | Maryland |
| 25 | Virginia Wisniewski | 14 | Daughter | — | Maryland |
| 26 | William Balcerak | 31 | Head | Chauffeur | Pennsylvania |
| 27 | Jean Balcerak | 28 | Wife | — | Maryland |
| 28 | Barbara Balcerak | 9 | Daughter | — | Maryland |
| 29 | Walatuna Balcerak | 7 | Daughter | — | Maryland |
| 30 | Virginia Balcerak | 5 | Daughter | — | Maryland |
| 31 | Frank Balcerak | 3 | Son | — | Maryland |
| 32 | Helen Balcerak | 1 | Daughter | — | Maryland |
| 33 | Leo S King | 57 | Head | — | Maryland |
| 34 | Marie King | 28 | Daughter | Office Clerk | Maryland |
| 35 | Louise King | 26 | Daughter | Stock Clerk | Maryland |
| 36 | Margaret King THIS PERSON | 25 | Daughter | Sub. Teacher | Maryland |
| 37 | Agnes King | 23 | Daughter | — | Maryland |
| 38 | Albert W Lhultz | 28 | Head | Butcher | Maryland |
| 39 | Mary M Lhultz | 23 | Wife | — | Maryland |
| 40 | Charles A Lhultz | 2 | Son | — | Maryland |
Related Census Records
Pedigree Summary
Margaret + 3 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)