JM
John Mason — 1930 US Census Record
Model Tree available1930 United States Federal Census · Baltimore, Maryland
Our Model Tree links this John Mason across the 1920, 1930 and 1940 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed), with identified parents Henrietta & Dallas — first a son (b.~1919), then head of a 5-person household.
Age 11
b. ~1919
Male
Son
Born: Maryland
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Baltimore, Maryland |
| Surname | Mason |
| Given Name | John Hicks |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Virginia |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1919 |
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 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Thelma Mason | Daughter | — | 7 | ~1923 |
| Hicks Mason | Head | — | 30 | ~1900 |
| John Mason | Son | — | 11 | ~1919 |
| Rudolph Mason | Son | — | 4 | ~1926 |
| Annie Mason | Spouse | — | 31 | ~1899 |
Census Appearances
1920
Baltimore, Maryland
Son, age
Baltimore, Maryland · implied b. ~1920 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mason |
| Given Name | John A. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Baltimore, Maryland
Son, age 11
Baltimore, Maryland · implied b. ~1919 — 5 household members
| Surname | Mason |
| Given Name | John Hicks |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Virginia |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Son, age 21
Baltimore-City-County, Maryland · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mouson |
| Given Name | John J. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Occupation | Clerk |
| Industry | Interior Decorator |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 220 |
| Highest Grade | C 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 John Mason across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Henrietta Mason (~0.82 confidence) and father Dallas Mason (~0.82 confidence) and mother Edith Mason (~0.82 confidence) and mother Bessie Mason (~0.92 confidence) and father John Mason (~0.92 confidence) and mother Annie Mason (~0.92 confidence) and father John Mouson (~0.92 confidence) and father Hicks Mason (~0.92 confidence) and mother Ruth Mouson (~0.92 confidence). The pedigree spans 2 generations with 9 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.89
Mother
Henrietta Mason
b. ~1855
Source father>mother
● Household
· direct · ~0.82
Father
Dallas Mason
b. ~1860
Source father>father
● Household
· direct · ~0.82
Mother
Edith Mason
b. ~1863
Source father>mother
● Household
· direct · ~0.82
Mother
Bessie Mason
b. ~1890
Source mother
● Household
· direct · ~0.92
Father
John Mason
b. ~1891
Source father
● Household
· direct · ~0.92
Mother
Annie Mason
b. ~1899
Source mother
● Household
· direct · ~0.92
Father
John Mouson
b. ~1900
Source father
● Household
· direct · ~0.92
Father
Hicks Mason
b. ~1900
Source father
● Household
· direct · ~0.92
Mother
Ruth Mouson
b. ~1901
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Mason
Son · 1930 · age 11 · b. ~1919 · Maryland
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Sibling
Thelma Mason
Sibling · 1930 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rudolph Mason
Sibling · 1930 · age 4
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
49 people indexed on this census page (ia:1930:15thcensus858unit:0108)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John J Lee | 47 | Head | Waiter | Maryland |
| 2 | Gertrude Lee | 42 | Wife | Seamstress | Maryland |
| 3 | William Lee | 54 | Brother | Waiter | Maryland |
| 4 | Margaret Lee | 75 | Mother | Laundress | Maryland |
| 5 | James Washington | 46 | Head | Houseman | South Carolina |
| 6 | Julia Washington | 40 | Wife | — | South Carolina |
| 7 | James Jr Washington | 21 | Son | — | South Carolina |
| 8 | George Washington | 19 | Son | Chauffeur | South Carolina |
| 9 | Ernest Hamilton | 32 | Head | Auto Repairing | North Carolina |
| 10 | Mary Hamilton | 30 | Wife | — | Virginia |
| 11 | Edna Parker | 39 | Lodger | Maid | Virginia |
| 12 | James Norris | 22 | Lodger | Porter | Virginia |
| 13 | Estelle Norris | 20 | Lodger | Maid | Virginia |
| 14 | Hicks Mason | 30 | Head | Caretaker | Maryland |
| 15 | Annie Mason | 31 | Wife | Laundress | Virginia |
| 16 | John Hicks Mason THIS PERSON | 11 | Son | — | Maryland |
| 17 | Thelma Mason | 7 | Daughter | — | Maryland |
| 18 | Rudolph Mason | 4 | Son | — | Maryland |
| 19 | Neal Ross | 42 | Head | Auto Mechanic | Maryland |
| 20 | Louise Ross | 35 | Wife | — | Maryland |
| 21 | Mattie Toper | 33 | Lodger | — | New Orleans |
| 22 | Louis Williams | 35 | Lodger | Chauffeur | Maryland |
| 23 | Joseph Catanese | 36 | Head | Produce Dealer | Maryland |
| 24 | Esther Catanese | 29 | Wife | — | Maryland |
| 25 | Naomi Carroll | 28 | Head | House Cleaning | Virginia |
| 26 | Raymond Carroll | 9 | Son | — | Maryland |
| 27 | Andrew Carroll | 7 | Son | — | Maryland |
| 28 | James Carroll | 2 | Son | — | Maryland |
| 29 | Arthur Tucker | 49 | Head | Housework | Virginia |
| 30 | Ida Tucker | 47 | Wife | Housework | Virginia |
| 31 | Clarence Tucker | 30 | Son | Chauffeur | Maryland |
| 32 | Bertha Tucker | 28 | Daughter | — | Maryland |
| 33 | Lewis Tucker | 19 | Son | Baker | Maryland |
| 34 | Mary Tucker | 18 | Daughter | — | Maryland |
| 35 | Dora Tucker | 11 | Daughter | — | Maryland |
| 36 | Genevieve Tucker | 8 | Son | — | Maryland |
| 37 | Louise Tucker | 2 | Granddaughter | — | Maryland |
| 38 | Andrew Powell | 42 | Head | Chauffeur | Virginia |
| 39 | Bertha Powell | 40 | Wife | — | Virginia |
| 40 | Gertrude Powell | 13 | Daughter | — | Maryland |
| 41 | Arthur Powell | 12 | Son | — | Maryland |
| 42 | Hortense Powell | 11 | Daughter | — | Maryland |
| 43 | Genevieve Powell | 10 | Daughter | — | Maryland |
| 44 | Hazel Powell | 7 | Daughter | — | Maryland |
| 45 | Melvin Powell | 5 | Son | — | Maryland |
| 46 | Margaret Powell | 4 | Daughter | — | Maryland |
| 47 | Ernestine Powell | 1 | Daughter | — | Maryland |
| 48 | Jerome Conaway | 11 | Cousin | — | Maryland |
| 49 | John Conaway | 30 | Cousin | Gardener | Virginia |
Pedigree Summary
John + 2 siblings
Gen 1 · 6 parents
~0.92
Gen 2 · 3 grandparents
~0.82
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)