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Mary Merritt — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Baltimore-County, Maryland
Our Model Tree links this Mary Merritt across the 1930 and 1940 US Censuses in Baltimore-County, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1922), then head of a 10-person household.
Age 18
b. ~1922
Female
Daughter
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-County, Maryland |
| Surname | Merritt |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Unincorporated place: Fairlawn, Dundalk, St. Helena |
| 1935 Residence (County) | Baltimore |
| Additional Details | |
| Occupation | Secretary |
| Industry | Florist |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 660 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Secretary |
| Township / Ward | Unincorporated Place Fairlawn Dundalk St Helena |
| Est. Birth Year | ~1922 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Thomas Merritt | Head | — | 47 | ~1893 |
| Lallie Merritt | Daughter | — | 10 | ~1930 |
| Mary Merritt | Daughter | — | 18 | ~1922 |
| Jane Merritt | Daughter | — | 20 | ~1920 |
| Helen Merritt | Spouse | — | 44 | ~1896 |
| Betty Merritt | Daughter | — | 16 | ~1924 |
| Anne Merritt | Daughter | — | 8 | ~1932 |
| Carlton Mccormick | Other | — | 74 | ~1866 |
| Lois Merritt | Daughter | — | 14 | ~1926 |
| Elsie Merritt | Daughter | — | 12 | ~1928 |
Census Appearances
1930
Baltimore, Maryland
Daughter, age 7
Baltimore, Maryland · implied b. ~1923 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Merritt |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| 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-County, Maryland
Daughter, age 18
Baltimore-County, Maryland · implied b. ~1922 — 10 household members
| Surname | Merritt |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Unincorporated place: Fairlawn, Dundalk, St. Helena |
| 1935 Residence (County) | Baltimore |
| Occupation | Secretary |
| Industry | Florist |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 660 |
| Highest Grade | H 2 |
| 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 Merritt across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Merritt
Daughter · 1940 · age 18 · b. ~1922 · Maryland
★ You are viewing this record
Sibling
Jane Merritt
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Merritt
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elsie Merritt
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lois Merritt
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Anne Merritt
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lallie Merritt
Sibling · 1940 · age 10
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-County, Maryland
Open full size
1940 US Federal Census — Baltimore-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01506-00205)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Thomas J. Merritt | 47 | Head | Manager | Maryland |
| 2 | Helen Merritt | 44 | Wife | — | Maryland |
| 3 | Jane Merritt | 20 | Daughter | Secretary | Maryland |
| 4 | Mary Merritt THIS PERSON | 18 | Daughter | Secretary | Maryland |
| 5 | Betty Merritt | 16 | Daughter | — | Maryland |
| 6 | Lois Merritt | 14 | Daughter | — | Maryland |
| 7 | Elsie Merritt | 12 | Daughter | — | Maryland |
| 8 | Lallie Merritt | 10 | Daughter | — | Maryland |
| 9 | Anne Merritt | 8 | Daughter | — | Maryland |
| 10 | Carlton Mccormick | 74 | Uncle | — | Maryland |
| 11 | Timothy H. Kearns | 52 | Head | Assistant Superintendent | Ohio |
| 12 | Florence Kearns | 54 | Wife | — | Ohio |
| 13 | Nora M. Kearns | 27 | Niece | Comptometer Operator | Pennsylvania |
| 14 | John H. Jackson | 44 | Head | Yard Master | Maryland |
| 15 | Edna Jackson | 42 | Wife | — | Maryland |
| 16 | Donald Jackson | 20 | Son | Feeder | Maryland |
| 17 | Paul Droue | 30 | Head | Foreman | Ohio |
| 18 | Virginia Droue | 29 | Wife | — | Ohio |
| 19 | Leslie Droue | 11 | Son | — | Ohio |
| 20 | Katherine Ryan | 58 | Mother in law | — | West Virginia |
| 21 | Ernest J. Fisher | 50 | Head | Foreman | Indiana |
| 22 | A. Beryl Fisher | 48 | Wife | — | Maryland |
| 23 | E. Thornton Fisher | 17 | Son | — | Maryland |
| 24 | Kenneth H. Gilbert | 36 | Head | Foreman | Maryland |
| 25 | Elizabeth Gilbert | 31 | Wife | — | New Jersey |
| 26 | Anne Lee Gilbert | 9 | Daughter | — | Maryland |
| 27 | James Curtin | 30 | Brother in law | Operator | New Jersey |
| 28 | Charles Barrett | 49 | Head | Manager | New York |
| 29 | Helen Barrett | 46 | Wife | — | Maryland |
| 30 | Helen M. Barrett | 18 | Daughter | — | Maryland |
| 31 | George Lindeman | 40 | Head | Safety Inspector | Maryland |
| 32 | Catherine Lindeman | 39 | Wife | — | Maryland |
| 33 | Catherine Anne Lindeman | 5 | Daughter | — | Maryland |
| 34 | Thomas M. Bossler | 58 | Head | Heater | Missouri |
| 35 | Augusta Bossler | 55 | Wife | — | Germany |
| 36 | Thomas P. Bossler | 26 | Son | Catcher | West Virginia |
| 37 | Dolores Bossler | 19 | Daughter | — | Maryland |
| 38 | William A. Bossler | 24 | Son | Stenographer | West Virginia |
| 39 | Robert Thomas | 39 | Head | Helper | Pennsylvania |
| 40 | Charlotte Thomas | 30 | Wife | — | Maryland |
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)