JB
John Brooks — 1930 US Census Record
Model Tree available1930 United States Federal Census · Baltimore, Maryland
Our Model Tree links this John Brooks across the 1910, 1920, 1930 and 1940 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed), with identified parents Annie & John — first a son (b.~1902), then head of a 4-person household.
Age 28
b. ~1902
Male
Son
Born: Maryland
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Baltimore, Maryland |
| Surname | Brooks |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Occupation | Laborer |
| Industry | City |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Laborer |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1902 |
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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Brooks | Head | — | 48 | ~1882 |
| John Brooks | Son | — | 28 | ~1902 |
| William Brooks | Son | — | 26 | ~1904 |
| Mary Brooks | Spouse | — | 45 | ~1885 |
Census Appearances
1910
Baltimore, Maryland
Other, age 6
Baltimore, Maryland · implied b. ~1904 — 38 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brooks |
| Given Name | John |
| Relationship to Head | Brother |
| Sex | M |
| Color / Race | Black |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1920
Baltimore, Maryland
Son, age 17
Baltimore, Maryland · implied b. ~1903 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brooks |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Labour |
| Industry | Steel work |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Son, age 28
Baltimore, Maryland · implied b. ~1902 — 4 household members
| Surname | Brooks |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Laborer |
| Industry | City |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Head, age 38
Baltimore-City-County, Maryland · implied b. ~1902 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Brock |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Occupation | Laborer |
| Industry | Steel Mill |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 988 |
| 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 John Brooks across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Annie Brooks (~0.92 confidence) and father John Brooks (~0.92 confidence) and mother Mary Brooks (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Annie Brooks
b. ~1871
Source mother
● Household
· direct · ~0.92
Father
John Brooks
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Mary Brooks
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Brooks
Son · 1930 · age 28 · b. ~1902 · Maryland
★ You are viewing this record
Sibling
William Brooks
Sibling · 1930 · age 26
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
1930 US Federal Census — Baltimore, Maryland
Open full size
1930 US Federal Census — Baltimore, Maryland
Page Contents
50 people indexed on this census page (ia:1930:15thcensus863unit:0153)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Michael Dee | 30 | Head | Laborer | Ireland |
| 2 | Mary Dee | 28 | Wife | — | Maryland |
| 3 | Michael Dee | 4 | Son | — | Maryland |
| 4 | John Dee | 2 | Son | — | Maryland |
| 5 | Mary Dee | 1 | Daughter | — | Maryland |
| 6 | Catherine Dee | 0 | Daughter | — | Maryland |
| 7 | John O'Brien | 40 | Head | Laborer | Ireland |
| 8 | Catherine O'Brien | 38 | Wife | — | Ireland |
| 9 | John O'Brien | 14 | Son | — | Maryland |
| 10 | Mary O'Brien | 12 | Daughter | — | Maryland |
| 11 | Catherine O'Brien | 10 | Daughter | — | Maryland |
| 12 | Michael O'Brien | 8 | Son | — | Maryland |
| 13 | Thomas O'Brien | 6 | Son | — | Maryland |
| 14 | Theresa O'Brien | 4 | Daughter | — | Maryland |
| 15 | Esther O'Brien | 2 | Daughter | — | Maryland |
| 16 | Arthur Shaw | 35 | Head | Laborer | Maryland |
| 17 | Esther Shaw | 30 | Wife | — | Maryland |
| 18 | John Shaw | 4 | Son | — | Maryland |
| 19 | Arthur Shaw | 2 | Son | — | Maryland |
| 20 | Frank Luth | 45 | Head | Laborer | Maryland |
| 21 | Mary Luth | 40 | Wife | — | Maryland |
| 22 | Frank Luth | 18 | Son | Laborer | Maryland |
| 23 | Mildred Luth | 16 | Daughter | — | Maryland |
| 24 | Eugene Luth | 14 | Son | — | Maryland |
| 25 | John Luth | 12 | Son | — | Maryland |
| 26 | Mildred Luth | 10 | Daughter | — | Maryland |
| 27 | Mary Luth | 8 | Daughter | — | Maryland |
| 28 | John Ridgely | 40 | Head | Laborer | Maryland |
| 29 | Mary Ridgely | 38 | Wife | — | Maryland |
| 30 | John Ridgely | 14 | Son | — | Maryland |
| 31 | Mary Ridgely | 12 | Daughter | — | Maryland |
| 32 | Catherine Ridgely | 10 | Daughter | — | Maryland |
| 33 | Michael Ridgely | 8 | Son | — | Maryland |
| 34 | John Hunter | 50 | Head | Laborer | Virginia |
| 35 | Mary Hunter | 46 | Wife | — | Virginia |
| 36 | John Brooks | 48 | Head | Laborer | Maryland |
| 37 | Mary Brooks | 45 | Wife | — | Maryland |
| 38 | John Brooks THIS PERSON | 28 | Son | Laborer | Maryland |
| 39 | William Brooks | 26 | Son | Laborer | Maryland |
| 40 | George Hale | 45 | Head | Laborer | Maryland |
| 41 | Mary Hale | 42 | Wife | — | Maryland |
| 42 | William Washington | 32 | Head | Laborer | Maryland |
| 43 | Mary Washington | 28 | Wife | — | Virginia |
| 44 | John Biggs | 27 | Head | Laborer | Maryland |
| 45 | Mary Biggs | 24 | Wife | — | Maryland |
| 46 | Arthur Sewell | 24 | Head | Laborer | Maryland |
| 47 | Margaret Sewell | 23 | Wife | — | Maryland |
| 48 | Mary Sewell | 4 | Daughter | — | Maryland |
| 49 | Margaret Sewell | 3 | Daughter | — | Maryland |
| 50 | Walter Sewell | 2 | Son | — | Maryland |
Pedigree Summary
John + 1 sibling
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 1930 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)