MS
Margaret Simpson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this Margaret Simpson across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed), with identified parents Howard & William — first a daughter (b.~1917), then head of a 3-person household.
Age 23
b. ~1917
Female
Daughter
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Simpson |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Class of Worker | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1917 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Margaret | Age | Birth yr |
|---|---|---|---|---|
| Martha Simpson | Head | — | 49 | ~1891 |
| Margaret Simpson | Daughter | — | 23 | ~1917 |
| James Pope | Other | — | 50 | ~1890 |
Census Appearances
1920
Baltimore, Maryland
Daughter, age 3
Baltimore, Maryland · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simpson |
| Given Name | Mary J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
Daughter, age 12
Baltimore, Maryland · implied b. ~1918 — 13 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simpson |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 12 |
| 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 23
Baltimore-City-County, Maryland · implied b. ~1917 — 3 household members
| Surname | Simpson |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Class of Worker | 0 |
| 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 Margaret Simpson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Howard Simpson (~0.92 confidence) and father William Simpson (~0.92 confidence) and mother Martha Simpson (~0.92 confidence) and mother Mary Simpson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Howard Simpson
b. ~1886
Source father
● Household
· direct · ~0.92
Father
William Simpson
b. ~1894
Source father
● Household
· direct · ~0.92
Mother
Martha Simpson
b. ~1891
Source mother
● Household
· direct · ~0.92
Mother
Mary Simpson
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Simpson
Daughter · 1940 · age 23 · b. ~1917 · Maryland
★ 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 — 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-t0627-01512-00515)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Florence Carroll | 20 | Lodger | — | Maryland |
| 2 | Ella Harry | 76 | Head | — | Maryland |
| 3 | Franklin Browne | 20 | Son | New Worker | Maryland |
| 4 | Charles Bland | 46 | Head | Laborer | Virginia |
| 5 | Mollie Bland | 45 | Wife | — | Virginia |
| 6 | Bertha Lewis | 37 | Head | Maid | Virginia |
| 7 | George Lewis | 20 | Son | Laborer | Virginia |
| 8 | Edward James | 30 | Head | Shipping Clerk Helper | Virginia |
| 9 | Elizabeth James | 25 | Wife | — | Maryland |
| 10 | Edward, Jr. James | 9 | Son | — | Maryland |
| 11 | Marion James | 8 | Daughter | — | Maryland |
| 12 | Mary James | 6 | Daughter | — | Maryland |
| 13 | Louise James | 3 | Daughter | — | Maryland |
| 14 | Cecelia Mccloud | 33 | Head | — | South Carolina |
| 15 | Charles Mccloud | 36 | Husband | Truck Greaser | South Carolina |
| 16 | Charles Jr. Mccloud | 2 | Son | — | Maryland |
| 17 | Ernestine Mccloud | 1 | Daughter | — | Maryland |
| 18 | Martha Smith | 47 | Cousin | Maid | South Carolina |
| 19 | Robert Williams | 70 | Head | — | Maryland |
| 20 | Linda Williams | 64 | Wife | — | Maryland |
| 21 | Henry Williams | 36 | Son | Unskilled Laborer | Maryland |
| 22 | Beatrice Williams | 25 | Daughter | — | Maryland |
| 23 | Martha Simpson | 49 | Head | Cook | Virginia |
| 24 | Margaret Simpson THIS PERSON | 23 | Daughter | — | Maryland |
| 25 | James Pope | 50 | Lodger | Janitor | Virginia |
| 26 | Anna Sharkey | 64 | Head | Dairy Products | Maryland |
| 27 | Della Moyers | 40 | Head | — | Maryland |
| 28 | Edward Stokes | 44 | Head | Unskilled Laborer | Virginia |
| 29 | Sadie Foster | 37 | Head | — | Virginia |
| 30 | Ruby Foster | 10 | Daughter | — | Maryland |
| 31 | Lindsay Foster | 8 | Son | — | Maryland |
| 32 | Lowell Foster | 7 | Son | — | Maryland |
| 33 | James Foster | 6 | Son | — | Maryland |
| 34 | Donald Foster | 5 | Son | — | Maryland |
| 35 | Catherine Foster | 3 | Daughter | — | Maryland |
| 36 | Anna Timberlake | 51 | Head | Cook | Virginia |
| 37 | Lily Gillette | 34 | Head | Waitress | Virginia |
| 38 | George Gillette | 18 | Son | Carpenters Helper | Washington |
| 39 | John Gillette | 27 | Brother | — | Virginia |
| 40 | Ada Frazier | 47 | Head | — | Maryland |
Related Census Records
Pedigree Summary
Margaret
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)