JW
John Watts — 1930 US Census Record
Model Tree available1930 United States Federal Census · Baltimore, Maryland
Our Model Tree links this John Watts across the 1920, 1930 and 1940 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed), with identified parents Charles & James — first a son (b.~1910), then head of a 12-person household.
Age 20
b. ~1910
Male
Son
Born: Maryland
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Baltimore, Maryland |
| Surname | Watts |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 20 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 19 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Occupation | Waiter |
| Industry | Country Club |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Waiter |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1910 |
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.
12 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Watts | Son | — | 20 | ~1910 |
| Aimee Williamson | Other | — | ~1930 | |
| James Watts | Son | — | 6 | ~1924 |
| Daniel Williamson | Other | — | 3 | ~1927 |
| John Williamson | Other | — | 1 | ~1929 |
| Ann Watts | Daughter | — | 21 | ~1909 |
| Thomas Williamson | Other | — | 27 | ~1903 |
| Velma Williamson | Other | — | 4 | ~1926 |
| Annie Watts | Spouse | — | 43 | ~1887 |
| Charles Watts | Son | — | 23 | ~1907 |
| Charles Watts | Head | — | 44 | ~1886 |
| Magdalene Williamson | Spouse | — | 26 | ~1904 |
Census Appearances
1920
X, Maryland
Son, age 11
X, Maryland · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Watt |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Son, age 20
Baltimore, Maryland · implied b. ~1910 — 12 household members
| Surname | Watts |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 20 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 19 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Waiter |
| Industry | Country Club |
| 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 30
Baltimore-City-County, Maryland · implied b. ~1910 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Watte |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 30 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Occupation | Electrician inspector |
| Industry | Street lights |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1560 |
| Highest Grade | No 7 |
| 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 Watts across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: father Charles Watts (~0.92 confidence) and father James Watt (~0.92 confidence) and mother Annie Watts (~0.92 confidence) and mother Magdalene Williamson (~0.60 confidence) and mother Mary Watt (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.86
Father
Charles Watts
b. ~1886
Source father
● Household
· direct · ~0.92
Father
James Watt
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Annie Watts
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Magdalene Williamson
b. ~1904
Source mother
● Household
· direct · ~0.6
Mother
Mary Watt
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Watts
Son · 1930 · age 20 · b. ~1910 · Maryland
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Sibling
Charles Watts
Sibling · 1930 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ann Watts
Sibling · 1930 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
James Watts
Sibling · 1930 · age 6
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:1930:15thcensus857unit:0927)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Katie Brown | 26 | Roomer | House Maid | Maryland |
| 2 | Reginald Wilson | 26 | Head | Porter | Jamaica |
| 3 | Margaret Wilson | 26 | Wife | — | Maryland |
| 4 | Margaret D. Wilson | 7 | Daughter | — | Maryland |
| 5 | Reginald Wilson | 6 | Son | — | Maryland |
| 6 | Ferdinand Wilson | 4 | Son | — | Maryland |
| 7 | Donald P. Wilson | 1 | Son | — | Maryland |
| 8 | Joseph G. Noel | 22 | Head | Chauffeur | Maryland |
| 9 | Myrtle S. Noel | 22 | Wife | — | Maryland |
| 10 | James H. Harris | 70 | Head | Handy Man | Maryland |
| 11 | Lucy Harris | 64 | Wife | Cook | Maryland |
| 12 | Thomas B. Chance | 31 | Roomer | Engineer | Maryland |
| 13 | Joseph B. Ford | 68 | Head | Broker | Tennessee |
| 14 | Pauline S. Ford | 46 | Wife | — | Virginia |
| 15 | Argenia C. Ford | 20 | Daughter | — | New Jersey |
| 16 | Melba S. Young | 28 | Maid | Prop Maid | Canada |
| 17 | Frank A. Pinkston | 38 | Head | Waiter | North Carolina |
| 18 | Edith L. Pinkston | 36 | Wife | Teacher | Maryland |
| 19 | Charles C. Watts | 44 | Head | Laborer | Maryland |
| 20 | Annie Watts | 43 | Wife | — | Virginia |
| 21 | Charles Jr. Watts | 23 | Son | Laborer | Maryland |
| 22 | James C. Watts | 6 | Son | — | Maryland |
| 23 | John Watts THIS PERSON | 20 | Son | Waiter | Maryland |
| 24 | Ann B. Watts | 21 | Daughter | House Maid | Maryland |
| 25 | Thomas Williamson | 27 | Son in law | Presser | Georgia |
| 26 | Magdalene Williamson | 26 | Wife | — | Maryland |
| 27 | Velma Williamson | 4 | Gr. Child | — | Maryland |
| 28 | Daniel T. Williamson | 3 | Gr. Child | — | Maryland |
| 29 | John C. Williamson | 1 | Gr. Child | — | Maryland |
| 30 | Aimee E. Williamson | 0 | Gr. Child | — | Maryland |
| 31 | Willie J. Winston | 50 | Head | Pastor | Virginia |
| 32 | Bernathy C. Winston | 55 | Wife | — | Virginia |
| 33 | Beatrice Woods | 21 | Niece | — | Virginia |
| 34 | Mary Gregory | 17 | Cousin | — | Virginia |
| 35 | Esther Overbeck | 33 | Roomer | Book | Maryland |
| 36 | Ralph V. Cook | 55 | Head | Teacher | Washington |
| 37 | Vivian C. Cook | 40 | Wife | Teacher | Tennessee |
| 38 | John Clark | 38 | Roomer | Cook | Virginia |
| 39 | Marcus Wagner | 32 | Head | Labour | Virginia |
| 40 | Elizabeth Wagner | 23 | Sister | — | Virginia |
| 41 | Joseph Wagner | 10 | Son | — | Virginia |
| 42 | Marcus Jr. Wagner | 9 | Son | — | Virginia |
| 43 | Eula Thomas | 31 | Sister | — | Virginia |
| 44 | Nanie White | 45 | Roomer | Cook | Virginia |
| 45 | Floyd White | 8 | Roomer | — | Virginia |
| 46 | Lawrence Walls | 23 | Roomer | Laborer | Maryland |
| 47 | Johnson Dorothy | 31 | Roomer | Waitress | Virginia |
| 48 | Fred Brown | 30 | Head | Presser | Georgia |
| 49 | Jannie Brown | 29 | Wife | House Maid | South Carolina |
| 50 | Clette Brown | 11 | Son | — | South Carolina |
Pedigree Summary
John + 3 siblings
Gen 1 · 5 parents
~0.86
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)