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Mary Brooks — 1940 US Census Record
Model Tree available1940 United States Federal Census · Baltimore-County, Maryland
Our Model Tree links this Mary Brooks across the 1920, 1930 and 1940 US Censuses in Baltimore-County, Maryland (XGBoost, ~Confirmed), with identified parents Luther & Lottie — first a daughter (b.~1918), then head of a 5-person household.
Age 22
b. ~1918
Female
Daughter
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Baltimore-County, Maryland |
| Surname | Brooks |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | Black |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Owings Mills |
| 1935 Residence (County) | Baltimore |
| Additional Details | |
| Occupation | Housework |
| Industry | Private family |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 260 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Housework |
| Township / Ward | Owings Mills |
| Est. Birth Year | ~1918 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Frances Brooks | Daughter | — | 19 | ~1921 |
| Mary Brooks | Daughter | — | 22 | ~1918 |
| Lottie Brooks | Head | — | 52 | ~1888 |
| Dallas Branson | Other | — | 54 | ~1886 |
| Allan Brooks | Son | — | 17 | ~1923 |
Census Appearances
1920
Baltimore, Maryland
Daughter, age 3
Baltimore, Maryland · implied b. ~1917 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brooks |
| Given Name | Mary E. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | none |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Daughter, age 12
Baltimore, Maryland · implied b. ~1918 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brooks |
| Given Name | Mary S |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| 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-County, Maryland
Daughter, age 22
Baltimore-County, Maryland · implied b. ~1918 — 5 household members
| Surname | Brooks |
| Given Name | Mary |
| Relationship to Head | daughter |
| Sex | F |
| Color / Race | Black |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Owings Mills |
| 1935 Residence (County) | Baltimore |
| Occupation | Housework |
| Industry | Private family |
| Class of Worker | PW |
| Hours Worked | 32 |
| Income (1939) | 260 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same house |
| 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 Brooks across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Luther Brooks (~0.92 confidence) and mother Lottie Brooks (~0.92 confidence) and father Robert Brooks (~0.92 confidence) and mother Amelia Brooks (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Luther Brooks
b. ~1887
Source father
● Household
· direct · ~0.92
Mother
Lottie Brooks
b. ~1888
Source mother
● Household
· direct · ~0.92
Father
Robert Brooks
b. ~1894
Source father
● Household
· direct · ~0.92
Mother
Amelia Brooks
b. ~1895
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Brooks
Daughter · 1940 · age 22 · b. ~1918 · Maryland
★ You are viewing this record
Sibling
Frances Brooks
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Allan Brooks
Sibling · 1940 · age 17
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
38 people indexed on this census page (nara:1940:m-t0627-01503-00835)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Norval Beaver | 37 | head | Manager | Maryland |
| 42 | Edna Beaver | 37 | wife | — | Maryland |
| 43 | Laurence Beaver | 15 | son | New Worker | Maryland |
| 44 | Larue Beaver | 14 | daughter | — | Maryland |
| 45 | Norval, Jr. Beaver | 13 | son | — | Maryland |
| 46 | Truman Beaver | 10 | son | — | Maryland |
| 47 | Levine Beaver | 9 | son | — | Maryland |
| 48 | Robert Beaver | 8 | son | — | Maryland |
| 49 | Clark Beaver | 4 | son | — | Maryland |
| 50 | Doris Beaver | 2 | daughter | — | Maryland |
| 51 | Elton Beaver | 0 | son | — | Maryland |
| 52 | Willie Jones | 44 | head | Laundress | Maryland |
| 53 | Bertha Ellen Jones | 25 | daughter | Trained Nurse | Maryland |
| 54 | James Jones | 21 | son | Waiter | Maryland |
| 55 | Bertha Bailey | 63 | Mother | — | Maryland |
| 56 | Esther Evans | 80 | Aunt | — | Virginia |
| 57 | Lottie Brooks | 52 | head | Laundry | Maryland |
| 58 | Mary Brooks THIS PERSON | 22 | daughter | Housework | Maryland |
| 59 | Frances Brooks | 19 | daughter | — | Maryland |
| 60 | Allan Brooks | 17 | son | New Worker | Maryland |
| 61 | Dallas Branson | 54 | Lodger | Laborer | Maryland |
| 62 | Mary Sutch | 57 | head | — | Maryland |
| 63 | Jno. Howard Fantom | 35 | son | Laborer | Maryland |
| 64 | Mary L. Sutch | 22 | daughter | Bottler | Maryland |
| 65 | Evelyn J. Sutch | 21 | daughter | Bottler | Maryland |
| 66 | Reuben J. Williams | 62 | head | Farmer | Maryland |
| 67 | Mary Williams | 59 | wife | — | Maryland |
| 68 | Myrl Smith | 44 | head | Laborer | Maryland |
| 69 | Norma Smith | 36 | wife | — | Delaware |
| 70 | Myrl, Jr. Smith | 14 | son | — | Maryland |
| 71 | John C. Smith | 11 | son | — | Maryland |
| 72 | James R. Smith | 6 | son | — | Maryland |
| 73 | Miller L. Davis | 66 | Mother-in-law | — | Maryland |
| 74 | Mary Hoffmeister | 57 | head | — | Maryland |
| 75 | Marion Hoffmeister | 23 | son | Mechanic | Maryland |
| 76 | George V. Hoffmeister | 21 | son | Mechanic | Maryland |
| 77 | Thomas V. Hoffmeister | 19 | son | Laborer | Maryland |
| 78 | Calvin J. Hoffmeister | 18 | son | Mechanic Apprentice | Maryland |
Pedigree Summary
Mary + 2 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 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)