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Martha Brooks — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Carroll-County, Maryland
Our Model Tree links this Martha Brooks across the 1930 and 1940 US Censuses in Carroll-County, Maryland (XGBoost, ~Confirmed) — first a spouse (b.~1909), then head of a 7-person household.
Age 31
b. ~1909
Female
Spouse
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Carroll-County, Maryland |
| Surname | Brooks |
| Given Name | Martha D. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 7 Woolery's |
| 1935 Residence (County) | Carroll |
| Additional Details | |
| Income (1939) | 600 |
| Highest Grade | No 3 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Election District 7 Woolerys |
| Est. Birth Year | ~1909 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Martha | Age | Birth yr |
|---|---|---|---|---|
| Harry Brooks | Son | — | 13 | ~1927 |
| Kenneth Brooks | Son | — | 10 | ~1930 |
| May Brooks | Daughter | — | 14 | ~1926 |
| Martha Brooks | Spouse | — | 31 | ~1909 |
| Evelyn Brooks | Daughter | — | 11 | ~1929 |
| William Brooks | Son | — | 8 | ~1932 |
| Harry Brooks | Head | — | 39 | ~1901 |
Census Appearances
1930
Carroll, Maryland
Other, age 21
Carroll, Maryland · implied b. ~1909 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brooks |
| Given Name | Martha D |
| Relationship to Head | Wife-H |
| Sex | F |
| Color / Race | White |
| Age | 21 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 16 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Carroll-County, Maryland
Spouse, age 31
Carroll-County, Maryland · implied b. ~1909 — 7 household members
| Surname | Brooks |
| Given Name | Martha D. |
| Relationship to Head | Wife |
| Sex | F |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 7 Woolery's |
| 1935 Residence (County) | Carroll |
| Income (1939) | 600 |
| Highest Grade | No 3 |
| 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 Martha Brooks across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
Martha Brooks
Spouse · 1940 · age 31 · b. ~1909 · Maryland
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Carroll-County, Maryland
Open full size
1940 US Federal Census — Carroll-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01544-00215)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Charles John | 2 | Grandson | — | Maryland |
| 42 | Philip J. Flater | 66 | Head | Carpenter | Maryland |
| 43 | Minnie B. Flater | 56 | Wife | — | Maryland |
| 44 | Harry T. Brooks | 39 | Head | Repair Man | Maryland |
| 45 | Martha D. Brooks THIS PERSON | 31 | Wife | — | Maryland |
| 46 | May D. Brooks | 14 | Daughter | — | Maryland |
| 47 | Harry T. Jr. Brooks | 13 | Son | — | Maryland |
| 48 | Evelyn L. Brooks | 11 | Daughter | — | Maryland |
| 49 | Kenneth W. Brooks | 10 | Son | — | Maryland |
| 50 | William D. Brooks | 8 | Son | — | Maryland |
| 51 | Robert E. Hetterbrick | 34 | Head | Machinist | Maryland |
| 52 | Helen Hetterbrick | 33 | Wife | Seamstress | Maryland |
| 53 | George E. Hetterbrick | 13 | Son | — | Maryland |
| 54 | Betty R. Hetterbrick | 11 | Daughter | — | Maryland |
| 55 | Isabel L. Hetterbrick | 9 | Daughter | — | Maryland |
| 56 | William M. Gest | 54 | Head | Farmer | Maryland |
| 57 | Lona L. Gest | 51 | Wife | — | Maryland |
| 58 | Richard M. Gest | 15 | Son | — | Maryland |
| 59 | Thomas A. Gest | 9 | Son | — | Maryland |
| 60 | George Lowery | 25 | Hired man | Farm Laborer | Pennsylvania |
| 61 | Marshal F. Knight | 60 | Head | Farmer | Maryland |
| 62 | Holice E. Knight | 50 | Wife | — | Maryland |
| 63 | Alfred F. Knight | 8 | Son | — | Maryland |
| 64 | George E. Bond | 16 | Step-son | — | Maryland |
| 65 | Raymond E. Utz | 21 | Hired man | Farm Laborer | Maryland |
| 66 | Robert E. White | 30 | Head | Laborer | Maryland |
| 67 | Margaret H. White | 30 | Wife | — | Maryland |
| 68 | Eleanor L. White | 2 | Daughter | — | Maryland |
| 69 | Robert E. Jr. White | 0 | Son | — | Maryland |
| 70 | George P. Trush | 30 | Head | Miller | West Virginia |
| 71 | Helen S. Trush | 27 | Wife | — | Maryland |
| 72 | Donald E. Trush | 7 | Son | — | Pennsylvania |
| 73 | Marian L. Trush | 5 | Daughter | — | Pennsylvania |
| 74 | Carroll M. Trush | 3 | Son | — | Pennsylvania |
| 75 | Cardiff L. Hollingsworth | 42 | Head | Farmer | Maryland |
| 76 | George N. Perry | 32 | Nephew | Waiter | Tennessee |
| 77 | Annie C. Perry | 23 | Niece | — | Maryland |
| 78 | Annie C. Perry | 0 | Grand-niece | — | Maryland |
| 79 | James R. Hagen | 39 | Head | Janitor | Maryland |
| 80 | Grace M. Hagen | 39 | Wife | — | Maryland |
Related Census Records
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)