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Helen Mason — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Baltimore, Maryland
Our Model Tree links this Helen Mason across the 1930 and 1940 US Censuses in Baltimore, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1915), then head of a 7-person household.
Age 15
b. ~1915
Female
Daughter
Born: Maryland
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Baltimore, Maryland |
| Surname | Mason |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Baltimore City |
| Est. Birth Year | ~1915 |
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 1930 census.
| Name | Relation to head | Relative to Helen | Age | Birth yr |
|---|---|---|---|---|
| Herbert Mason | Son | — | 9 | ~1921 |
| Dorothy Mason | Daughter | — | 12 | ~1918 |
| William Mason | Son | — | 20 | ~1910 |
| George Mason | Head | — | 44 | ~1886 |
| Mary Mason | Spouse | — | 45 | ~1885 |
| Jean Mason | Daughter | — | 4 | ~1926 |
| Helen Mason | Daughter | — | 15 | ~1915 |
Census Appearances
1930
Baltimore, Maryland
Daughter, age 15
Baltimore, Maryland · implied b. ~1915 — 7 household members
| Surname | Mason |
| Given Name | Helen |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Baltimore-City-County, Maryland
Other, age 25
Baltimore-City-County, Maryland · implied b. ~1915 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mason |
| Given Name | Henrietta |
| Relationship to Head | Sister |
| Sex | F |
| Color / Race | Black |
| Age | 25 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Baltimore City |
| 1935 Residence (County) | Baltimore City |
| Occupation | Maid |
| Industry | Private family |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 52 |
| 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 Helen Mason across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Helen Mason
Daughter · 1930 · age 15 · b. ~1915 · Maryland
★ You are viewing this record
Sibling
Dorothy Mason
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Mason
Sibling · 1930 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jean Mason
Sibling · 1930 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Herbert Mason
Sibling · 1930 · age 9
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:1930:15thcensus853unit:0652)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Kamps Kidd | 65 | Mother | — | Maryland |
| 52 | Kamps Kidd | 26 | Brother | Operator | Maryland |
| 53 | Harry R. Gamble | 59 | Head | Machinist | Maryland |
| 54 | Mary Gamble | 47 | Wife | — | Maryland |
| 55 | Harry Jr. Gamble | 7 | Son | — | Maryland |
| 56 | Norwood Walter Gamble | 47 | Boarder | Laborer | Maryland |
| 57 | George Mason | 44 | Head | Mechanic | Maryland |
| 58 | Mary Mason | 45 | Wife | — | Pennsylvania |
| 59 | William Mason | 20 | Son | Salesman | Maryland |
| 60 | Helen Mason THIS PERSON | 15 | Daughter | — | Maryland |
| 61 | Dorothy Mason | 12 | Daughter | — | Maryland |
| 62 | Herbert Mason | 9 | Son | — | Maryland |
| 63 | Jean Mason | 4 | Daughter | — | Maryland |
| 64 | Michael Higgins | 54 | Head | Fireman | Maryland |
| 65 | Anna M. Higgins | 52 | Wife | — | Maryland |
| 66 | William F. Higgins | 13 | Son | — | Maryland |
| 67 | Elizabeth Dove | 63 | Head | — | Maryland |
| 68 | Harry Daugherty | 33 | Son-in-law | Saleslady | Maryland |
| 69 | Renae Daugherty | 31 | Daughter | — | Maryland |
| 70 | Joseph Daugherty | 46 | Son-in-law | Paperhanger | Maryland |
| 71 | Paul Daugherty | 28 | Boarder | Electrician | Maryland |
| 72 | Herbert Baller | 35 | Head | Salesman | Maryland |
| 73 | Katherine Baller | 70 | Mother | — | Germany |
| 74 | Elizabeth Winfield | 45 | Head | — | Tennessee |
| 75 | Leo Winfield | 24 | Son | — | Canada French |
| 76 | Harry Shrader | 21 | Son-in-law | — | Pennsylvania |
| 77 | Leona Shrader | 18 | Daughter | — | New York |
| 78 | William Pittman | 55 | Head | Teacher | Rhode Island |
| 79 | Katherine Pittman | 48 | Wife | — | Irish Free State |
| 80 | Mary K. Pittman | 25 | Daughter | Librarian | Rhode Island |
| 81 | Nancy S. Pittman | 24 | Daughter | Teacher | Rhode Island |
| 82 | John C. Pittman | 22 | Son | Watchman | Rhode Island |
| 83 | Dorothy T. Pittman | 16 | Daughter | — | Rhode Island |
| 84 | Howard Bull | 42 | Head | Brakeman | Maryland |
| 85 | Edith Bull | 27 | Daughter | — | Maryland |
| 86 | Reita Bull | 17 | Daughter | — | Maryland |
| 87 | George Worden | 59 | Head | Barber | Maryland |
| 88 | Augusta Worden | 59 | Wife | — | Maryland |
| 89 | Theodora Worden | 32 | Boarder | Deaconess | Holland |
| 90 | Jacob Hunter Bechtel | 40 | Head | Boatswainmate | Maryland |
| 91 | Mary J. Bechtel | 39 | Wife | — | England |
| 92 | John S. Bechtel | 16 | Son | — | Maryland |
| 93 | Jack H. Bechtel | 9 | Son | — | Maryland |
| 94 | Bert Bechtel | 4 | Son | — | Maryland |
| 95 | Charles Chamberlain | 70 | Boarder | Salesman | Maryland |
| 96 | Mary Kennear | 58 | Boarder | — | Maryland |
| 97 | Richard Schmick | 76 | Head | — | Maryland |
| 98 | Annie Schmick | 48 | Daughter | Seamstress | Maryland |
| 99 | James Shiras | 26 | Boarder | Roughest|Rougher | Maryland |
| 100 | Harry V. Lindsey | 36 | Head | Carpenter | Iowa |
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)