SJ
Sam Johnson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Baltimore, Maryland
Our Model Tree links this Sam Johnson across the 1920, 1930 and 1940 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed) — first a spouse (b.~1890), then head of a 8-person household.
Age 40
b. ~1890
Male
Spouse
Born: Maryland
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Baltimore, Maryland |
| Surname | Johnson |
| Given Name | Sam |
| Relationship to Head | Husband |
| Sex | M |
| Color / Race | Black |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 28 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Additional Details | |
| Occupation | Laborer |
| Industry | Odd jobs |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Laborer |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1890 |
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.
8 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Sam | Age | Birth yr |
|---|---|---|---|---|
| Evelyn Johnson | Daughter | — | 5 | ~1925 |
| Helen Johnson | Daughter | — | 3 | ~1927 |
| Mary Johnson | Head | — | 30 | ~1900 |
| Sonny Johnson | Son | — | 2 | ~1928 |
| Eugene Johnson | Son | — | ~1930 | |
| Manfield Johnson | Son | — | 11 | ~1919 |
| Louis Johnson | Son | — | 7 | ~1923 |
| Sam Johnson | Spouse | — | 40 | ~1890 |
Census Appearances
1920
None, Maryland
Other, age 30
None, Maryland · implied b. ~1890 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Samuel |
| Relationship to Head | Boarder |
| Sex | M |
| Color / Race | Black |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Labor |
| Industry | Steel Co |
| Class of Worker | W |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Spouse, age 40
Baltimore, Maryland · implied b. ~1890 — 8 household members
| Surname | Johnson |
| Given Name | Sam |
| Relationship to Head | Husband |
| Sex | M |
| Color / Race | Black |
| Age | 40 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 28 |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Laborer |
| Industry | Odd jobs |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Head, age 49
Baltimore-City-County, Maryland · implied b. ~1891 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Samuel |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Occupation | Porter |
| Industry | Poultry Store |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 260 |
| Highest Grade | No 5 |
| 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 Sam Johnson across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Sam Johnson
Spouse · 1930 · age 40 · b. ~1890 · Maryland
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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:1930:15thcensus862unit:1074)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Williams | 29 | Head | Chauffeur | North Carolina |
| 2 | Helen Broscoe | 35 | Boarder | Servant | Maryland |
| 3 | John Broscoe | 12 | Boarder | — | Maryland |
| 4 | Alexander Broscoe | 10 | Boarder | — | Maryland |
| 5 | Milton Johnson | 30 | Lodger | Laborer | Maryland |
| 6 | Elmer Campbell | 29 | Lodger | Helper | Maryland |
| 7 | Walter Jenkins | 30 | Head | Laborer | Virginia |
| 8 | Annie Jenkins | 30 | Wife | — | Virginia |
| 9 | Mary Johnson | 30 | Head | — | Virginia |
| 10 | Sam Johnson THIS PERSON | 40 | Husband | Laborer | Maryland |
| 11 | Manfield Johnson | 11 | Son | — | Maryland |
| 12 | Louis Johnson | 7 | Son | — | Maryland |
| 13 | Evelyn Johnson | 5 | Daughter | — | Maryland |
| 14 | Helen Johnson | 3 | Daughter | — | Maryland |
| 15 | Sonny Boy Johnson | 2 | Son | — | Maryland |
| 16 | Eugene Johnson | 0 | Son | — | Maryland |
| 17 | Louise Smith | 26 | Head | Servant | North Carolina |
| 18 | Lee A. Smith | 3 | Son | — | Pennsylvania |
| 19 | James Harris | 57 | Head | Laborer | Maryland |
| 20 | Susie Harris | 33 | Wife | Servant | Maryland |
| 21 | Sarah Willis | 34 | Daughter | — | Maryland |
| 22 | Pearl Clark | 21 | Daughter | Servant | Maryland |
| 23 | Clarence Clark | 25 | Son-in-law | Laborer | Maryland |
| 24 | Harriet Brooks | 54 | Boarder | Servant | Pennsylvania |
| 25 | Rose Willis | 14 | Granddaughter | — | Maryland |
| 26 | Nefius Butler | 58 | Head | Laborer | Georgia |
| 27 | Ella Butler | 25 | Daughter | Operator | Georgia |
| 28 | Sassie Butler | 19 | Daughter | Servant | Georgia |
| 29 | Verona Butler | 16 | Daughter | — | Georgia |
| 30 | Aaron Butler | 12 | Son | — | Maryland |
| 31 | Margie Butler | 6 | Daughter | — | Maryland |
| 32 | Henson Butler | 4 | Son | — | Maryland |
| 33 | Paul Butler | 1 | Son | — | Maryland |
| 34 | Walter Via | 48 | Head | Painter | Virginia |
| 35 | Mary Via | 48 | Wife | — | Virginia |
| 36 | Frances Via | 17 | Daughter | Saleslady | Virginia |
| 37 | Elliott Via | 13 | Son | — | Virginia |
| 38 | Agnes Via | 9 | Daughter | — | Maryland |
| 39 | John Schuck | 49 | Head | Clerk | Maryland |
| 40 | Caroline Schuck | 47 | Wife | — | Maryland |
| 41 | Sadie Denver | 58 | Sister | — | Maryland |
| 42 | James Schuck | 22 | Son | Machinist | Maryland |
| 43 | Anna Wood | 66 | Head | — | Maryland |
| 44 | George C. Edwards | 76 | Brother | Painter | Maryland |
| 45 | John C. Angland | 58 | Lodger | Chauffeur | Maryland |
| 46 | James Wilson | 58 | Lodger | Jeweler | Virginia |
| 47 | Harry W. Downs | 51 | Head | Cutter | Maryland |
| 48 | Hattie A. Downs | 50 | Wife | — | Maryland |
| 49 | Lola B. Williams | 52 | Head | — | Virginia |
| 50 | Richard Smith | 44 | Boarder | Machinist | Maryland |
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)