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Mary Lee — 1940 US Census Record
Model Tree available1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this Mary Lee across the 1920, 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed), with identified parents William & Ellen — first a daughter (b.~1911), then head of a 2-person household.
Age 29
b. ~1911
Female
Daughter
Born: MARYLAND
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | LEE |
| Given Name | MARY |
| Relationship to Head | DAUGHTER |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | MARYLAND |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| Occupation | STENOGRAPHER |
| Industry | SHEET METAL |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 1100 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Stenographer |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1911 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Lee | Daughter | — | 29 | ~1911 |
| Catherine Lee | Head | — | 66 | ~1874 |
Census Appearances
1920
Anne Arundel, …
Daughter, age 10
Anne Arundel, Maryland · implied b. ~1910 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lee |
| Given Name | Mary E |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| 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
Anne Arundel, …
Daughter, age 20
Anne Arundel, Maryland · implied b. ~1910 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lee |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Stenographer |
| Industry | Garage |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Daughter, age 29
Baltimore-City-County, Maryland · implied b. ~1911 — 2 household members
| Surname | LEE |
| Given Name | MARY |
| Relationship to Head | DAUGHTER |
| Sex | F |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | MARYLAND |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Occupation | STENOGRAPHER |
| Industry | SHEET METAL |
| Class of Worker | PW |
| Hours Worked | 50 |
| Income (1939) | 1100 |
| Highest Grade | Hs 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 Lee across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Lee (~0.92 confidence) and mother Ellen Lee (~0.92 confidence) and mother Catherine Lee (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Lee
b. ~1864
Source father
● Household
· direct · ~0.92
Mother
Ellen Lee
b. ~1874
Source mother
● Household
· direct · ~0.92
Mother
Catherine Lee
b. ~1874
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Lee
Daughter · 1940 · age 29 · b. ~1911 · 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-t0627-01530-00445)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Catherine Lee | 66 | HEAD | None | MARYLAND |
| 2 | Mary Lee THIS PERSON | 29 | DAUGHTER | Stenographer | MARYLAND |
| 3 | Harry King | 65 | HEAD | None | IRISH FREE STATE |
| 4 | Margret King | 55 | WIFE | None | IRISH FREE STATE |
| 5 | Henry King | 34 | SON | Draftsman | MARYLAND |
| 6 | Mary King | 32 | DAUGHTER | Servant | MARYLAND |
| 7 | Elizabeth King | 24 | DAUGHTER | Sales Lady | MARYLAND |
| 8 | Cecelia King | 23 | DAUGHTER | Operator | MARYLAND |
| 9 | Irene King | 18 | DAUGHTER | New Worker | MARYLAND |
| 10 | Dorothy King | 16 | DAUGHTER | — | MARYLAND |
| 11 | Frances King | 15 | DAUGHTER | — | MARYLAND |
| 12 | John King | 13 | SON | — | MARYLAND |
| 13 | Noreen King | 10 | DAUGHTER | — | MARYLAND |
| 14 | Rose Anne Jones | 29 | DAUGHTER | Operator | MARYLAND |
| 15 | Jean E. Jones | 6 | GRAND-DAUGHTER | — | MARYLAND |
| 16 | Lewis Stokes | 59 | HEAD | Carpenter | MARYLAND |
| 17 | Eda Stokes | 55 | WIFE | None | MARYLAND |
| 18 | Marion Stokes | 27 | DAUGHTER | Sewer | MARYLAND |
| 19 | Dorothy Stokes | 15 | DAUGHTER | — | MARYLAND |
| 20 | George Stokes | 26 | HEAD | Carpenter | MARYLAND |
| 21 | Dorothy Stokes | 21 | WIFE | None | MARYLAND |
| 22 | Carl Hagan | 40 | HEAD | Sexton | PENNSYLVANIA |
| 23 | Margret Hagan | 42 | WIFE | None | MARYLAND |
| 24 | Mary C. Hagan | 12 | DAUGHTER | — | MARYLAND |
| 25 | James Hagan | 8 | SON | — | MARYLAND |
| 26 | Florence Blair | 57 | HEAD | None | MARYLAND |
| 27 | Bertha Roberts | 46 | NIECE | Bushler | MARYLAND |
| 28 | Mary Riggin | 67 | HEAD | None | MARYLAND |
| 29 | Robert Riggin | 62 | BROTHER | None | MARYLAND |
| 30 | Harry Riggin | 61 | BROTHER | Laborer | MARYLAND |
| 31 | Margret Risett | 77 | LODGER | None | MARYLAND |
| 32 | Stella Shepard | 51 | HEAD | None | MARYLAND |
| 33 | David Shevitz | 32 | HEAD | Medical Doctor | RUSSIA |
| 34 | Jean Shevitz | 31 | WIFE | None | NORTH DAKOTA |
| 35 | Richard Shevitz | 5 | SON | — | MARYLAND |
| 36 | Harold Shevitz | 2 | SON | — | MARYLAND |
| 37 | John Leagy | 74 | HEAD | None | IRISH FREE STATE |
| 38 | Mary Leagy | 72 | WIFE | None | IRISH FREE STATE |
| 39 | Margaret Leagy | 47 | DAUGHTER | None | MARYLAND |
| 40 | William J. Leagy | 45 | SON | Clerk | MARYLAND |
Pedigree Summary
Mary
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 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)