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Mary Lester — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-City-County, Maryland
Our Model Tree links this Mary Lester across the 1930 and 1940 US Censuses in Baltimore-City-County, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1926), then head of a 6-person household.
Age 14
b. ~1926
Female
Daughter
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-City-County, Maryland |
| Surname | Lester |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Additional Details | |
| 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 | ~1926 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Anna Lester | Daughter | — | 19 | ~1921 |
| Mary Lester | Daughter | — | 14 | ~1926 |
| George Lester | Son | — | 21 | ~1919 |
| Lillian Lester | Spouse | — | 52 | ~1888 |
| George Lester | Head | — | 57 | ~1883 |
| Ellen Lester | Daughter | — | 16 | ~1924 |
Census Appearances
1930
Baltimore, Maryland
Daughter, age 3
Baltimore, Maryland · implied b. ~1927 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lester |
| Given Name | Margaret |
| 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 |
1940
Baltimore-City-County, Maryland
Daughter, age 14
Baltimore-City-County, Maryland · implied b. ~1926 — 6 household members
| Surname | Lester |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| 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 Lester across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Lester
Daughter · 1940 · age 14 · b. ~1926 · Maryland
★ You are viewing this record
Sibling
Ellen Lester
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anna Lester
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Lester
Sibling · 1940 · age 21
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
39 people indexed on this census page (nara:1940:m-t0627-01539-00804)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary Jane Teagarden | 6 | Daughter | — | Maryland |
| 42 | Arthur Van Teagarden | 3 | Son | — | Maryland |
| 44 | George W. Lester | 57 | Head | Bond Attorney | Maryland |
| 45 | Lillian V. Lester | 52 | Wife | — | Maryland |
| 46 | George W. Lester | 21 | Son | — | Maryland |
| 47 | Anna V. Lester | 19 | Daughter | — | Maryland |
| 48 | Ellen S. Lester | 16 | Daughter | — | Maryland |
| 49 | Mary E. Lester THIS PERSON | 14 | Daughter | — | Maryland |
| 50 | Robert Merrill | 51 | Head | Stenotypist | Missouri |
| 51 | Marguerite Merrill | 52 | Wife | — | New York |
| 52 | Edith E. Merrill | 22 | Daughter | Office Clerk | New York |
| 53 | Merrill R. 3Rd Merrill | 21 | Son | Office Clerk | New Jersey |
| 54 | Severn M. Merrill | 20 | Son | — | New Jersey |
| 55 | Francis J. Cronin | 33 | Head | Asst. Division Manager | New York |
| 56 | Mary B. Cronin | 33 | Wife | — | New York |
| 57 | Peter Cronin | 1 | Son | — | Maryland |
| 58 | Emma Harris | 54 | Maid | Housemaid | Virginia |
| 59 | Richard G. Coblentz | 47 | Head | Physician | Pennsylvania |
| 60 | Mary C. Coblentz | 40 | Wife | — | Georgia |
| 61 | Richard G. Coblentz | 12 | Son | — | Maryland |
| 62 | Shelby C. Coblentz | 9 | Son | — | Maryland |
| 63 | Harry C. Primrose | 47 | Head | Landscape Artist | Maryland |
| 64 | Rosalie Primrose | 45 | Wife | — | Columbia |
| 65 | Harry C. 3Rd Primrose | 23 | Son | Insurance Salesman | Maryland |
| 66 | Lewis B. Whiting | 34 | Head | Surgeon | Maryland |
| 67 | Kathryn G. Whiting | 28 | Wife | — | Maryland |
| 68 | George A. Whiting | 5 | Son | — | Maryland |
| 69 | Susanne Whiting | 3 | Daughter | — | Maryland |
| 70 | Guthrie T. Speers | 49 | Head | Preacher | New Jersey |
| 71 | Elizabeth T. Speers | 46 | Wife | — | New Jersey |
| 72 | Guthrie T. Jr. Speers | 13 | Son | — | New York |
| 73 | Ellen C. Speers | 10 | Daughter | — | Maryland |
| 74 | Lydia J. House | 67 | Head | — | Maryland |
| 75 | Clara M. House | 54 | Daughter | Room Keeper | Maryland |
| 76 | Ruth M. House | 45 | Daughter | — | Maryland |
| 77 | Walter Papron | 35 | Head | Coast Guard Lieutenant | New York |
| 78 | Gertrude Papron | 33 | Wife | — | Massachusetts |
| 79 | Walter Papron | 10 | Son | — | Massachusetts |
| 80 | Marilyn Papron | 6 | Daughter | — | Rhode Island |
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)