MF
Mary Foster — 1920 US Census Record
Model Tree available1920 United States Federal Census · Baltimore, Maryland
Our Model Tree links this Mary Foster across the 1920, 1930 and 1940 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed), with identified parents Jacob & James — first a daughter (b.~1917), then head of a 8-person household.
Age 3
b. ~1917
Female
Daughter
Born: Maryland
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Baltimore, Maryland |
| Surname | Foster |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| 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.
8 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Foster | Daughter | — | 3 | ~1917 |
| Rose Foster | Daughter | — | 14 | ~1906 |
| Eva Foster | Daughter | — | 5 | ~1915 |
| Florence Foster | Daughter | — | 12 | ~1908 |
| Foster | Daughter | — | 23 | ~1897 |
| Nellie Foster | Daughter | — | 25 | ~1895 |
| Jacob Foster | Head | — | 49 | ~1871 |
| Mary Foster | Spouse | — | 47 | ~1873 |
Census Appearances
1920
Baltimore, Maryland
Daughter, age 3
Baltimore, Maryland · implied b. ~1917 — 8 household members
| Surname | Foster |
| Given Name | Mary |
| 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 |
1930
Baltimore, Maryland
Daughter, age 14
Baltimore, Maryland · implied b. ~1916 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Foster |
| Given Name | Marie E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Clerk |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Other, age 25
Baltimore-City-County, Maryland · implied b. ~1915 — 40 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Foster |
| Given Name | Marguerite V. |
| Relationship to Head | Nurse |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Occupation | Nurse |
| Industry | Hospital |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 77 |
| 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 Mary Foster across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Jacob Foster (~0.92 confidence) and father James Foster (~0.92 confidence) and mother Clara Foster (~0.92 confidence) and mother Mary Foster (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Jacob Foster
b. ~1871
Source father
● Household
· direct · ~0.92
Father
James Foster
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Clara Foster
b. ~1895
Source mother
● Household
· direct · ~0.92
Mother
Mary Foster
b. ~1873
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Foster
Daughter · 1920 · age 3 · b. ~1917 · Maryland
★ You are viewing this record
Sibling
Eva Foster
Sibling · 1920 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Foster
Sibling · 1920 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Nellie Foster
Sibling · 1920 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Florence Foster
Sibling · 1920 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rose Foster
Sibling · 1920 · age 14
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
1920 US Federal Census — Baltimore, Maryland
Open full size
1920 US Federal Census — Baltimore, Maryland
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu665unit:0674)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Alice M Kishert | 15 | Daughter | — | Maryland |
| 2 | Rose A Mueller | 76 | Head | — | Maryland |
| 3 | Lelia Mueller | 40 | Daughter | Clerk | W. Virginia |
| 4 | Florence Mueller | 37 | Daughter | — | W. Virginia |
| 5 | Margie Plant | 35 | Daughter | Binding | W. Virginia |
| 6 | Lelia Plant | 16 | Daughter | Printer | Maryland |
| 7 | Vivian Plant | 12 | Daughter | — | Maryland |
| 8 | Norman Plant | 7 | Son | — | District Columbia |
| 9 | Jacob Foster | 49 | Head | Printer | Maryland |
| 10 | Mary Foster | 47 | Wife | — | Maryland |
| 11 | Nellie Foster | 25 | Daughter | Clerk | Maryland |
| 12 | Nan Foster | 23 | Daughter | Clerk | Maryland |
| 13 | Rose Foster | 14 | Daughter | — | Maryland |
| 14 | Florence Foster | 12 | Daughter | — | Maryland |
| 15 | Eva Foster | 5 | Daughter | — | Maryland |
| 16 | Mary Foster THIS PERSON | 3 | Daughter | — | Maryland |
| 17 | William Stahn | 62 | Head | Musician | Wurttemberg |
| 18 | Charlotte Stahn | 58 | Wife | — | Wurttemberg |
| 19 | Mathilda Labbé | 49 | Head | — | Canada French |
| 20 | Julia Labbé | 19 | Daughter | — | Maine |
| 21 | Raynaldo Labbé | 17 | Son | Electrician | Maine |
| 22 | Clarence Hill | 53 | Head | Clerk | Maryland |
| 23 | Lula Hill | 51 | Wife | — | Maryland |
| 24 | Gladys Hill | 21 | Son | Civil Engineer | Maryland |
| 25 | Clarence Rooney | 25 | Son-in-law | Salesman | Maryland |
| 26 | Ella Rooney | 28 | Daughter | — | Maryland |
| 27 | Lawrence Monnett | 41 | Head | Shipping Clerk | Maryland |
| 28 | Martha Monnett | 41 | Wife | — | Maryland |
| 29 | Helen Monnett | 14 | Daughter | — | Maryland |
| 30 | Lawrence Monnett | 11 | Son | — | Maryland |
| 31 | Doris Monnett | 1 | Daughter | — | Maryland |
| 32 | Earl Holland | 40 | Brother | Receiving Clerk | Maryland |
| 33 | Henry Noble | 42 | Cousin | Salesman | Maryland |
| 34 | John Barger | 40 | Head | Contractor | Maryland |
| 35 | John Barger | 42 | Head | Clerk | Maryland |
| 36 | Annie Barger | 42 | Wife | — | Maryland |
| 37 | James Lisle | 28 | Head | Bookkeeper | Maryland |
| 38 | Mabel Lisle | 24 | Wife | — | Maryland |
| 39 | James Lisle | 3 | Son | — | Maryland |
| 40 | Clarence Lisle | 1 | Son | — | Maryland |
| 41 | Millard Bull | 32 | Head | Steamfitter | Maryland |
| 42 | Helen Bull | 30 | Wife | — | Maryland |
| 43 | Margaret Bull | 5 | Son | — | Maryland |
| 44 | Theodore Helfenbein | 35 | Head | Truckman | Germany |
| 45 | Margaret Helfenbein | 32 | Wife | — | Bavaria |
| 46 | Edward Helfenbein | 10 | Son | — | Maryland |
| 47 | Edward Mahle | 50 | Head | Merchant | Maryland |
| 48 | Olivia Mahle | 42 | Wife | — | Maryland |
| 49 | Carrie Mahle | 18 | Daughter | Clerk | Maryland |
| 50 | Ernest Kristy | 45 | Head | Merchant | Maryland |
Pedigree Summary
Mary + 5 siblings
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 1920 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)