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Harry Mason — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Los Angeles, California
Our Model Tree links this Harry Mason across the 1920, 1930 and 1940 US Censuses in Los Angeles, California (XGBoost, ~Confirmed) — first a head (b.~1890), then head of a 4-person household.
Age 40
b. ~1890
Male
Head
Born: California
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Los Angeles, California |
| Surname | Mason |
| Given Name | Harry L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | California |
| Age at First Marriage | 32 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Additional Details | |
| Occupation | Engineer |
| Industry | Elect. Elect. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 212.50 |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
| Occupation | Engineer |
| Township / Ward | Los Angeles 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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Harry | Age | Birth yr |
|---|---|---|---|---|
| Edith Mason | Other | — | 38 | ~1892 |
| Harry Mason | Son | — | 7 | ~1923 |
| Harry Mason | Head | — | 40 | ~1890 |
| Rose Mason | Daughter | — | 4 | ~1926 |
Census Appearances
1920
Los Angeles, …
Head, age 30
Los Angeles, California · implied b. ~1890 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mason |
| Given Name | Harry R. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Married |
| Birthplace | California |
| Father's Birthplace | West Virginia |
| Mother's Birthplace | Ohio |
| Occupation | Engineer |
| Industry | Stationary |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1930
Los Angeles, …
Head, age 40
Los Angeles, California · implied b. ~1890 — 4 household members
| Surname | Mason |
| Given Name | Harry L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | California |
| Age at First Marriage | 32 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | Engineer |
| Industry | Elect. Elect. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 212.50 |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
1940
Los-Angeles-County, California
Head, age 50
Los-Angeles-County, California · implied b. ~1890 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mason |
| Given Name | Harlan |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Single |
| Birthplace | California |
| 1935 Residence (City) | Long Beach City |
| Class of Worker | PW |
| Hours Worked | 0 |
| Income (1939) | 2700 |
| Highest Grade | No |
| Birth State | California |
| Birth Country | United States |
| Birthplace (normalized) | california |
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 Harry Mason across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Harry Mason
Head · 1930 · age 40 · b. ~1890 · California
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Los Angeles, California
Open full size
1930 US Federal Census — Los Angeles, California
Page Contents
39 people indexed on this census page (ia:1930:californiacensus00reel141:0848)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Armine Cummins-Hopkins | 24 | Head | — | West Virginia |
| 52 | Bessie Cummins-Hopkins | 61 | Wife | — | Wisconsin |
| 53 | Anne-Marie Cummins-Hopkins | 37 | Daughter | — | Iowa |
| 54 | Louise Cummins-Hopkins | 27 | Daughter | — | Iowa |
| 55 | Lee Cummins-Hopkins | 40 | Son-in-law | Manufacturer | California |
| 56 | Stetson-Lee Cummins-Hopkins | 10 | Grandson | — | Iowa |
| 57 | Woodrow Cummins-Hopkins | 17 | Servant | Servant | Utah |
| 58 | Ruth Fuller-Williams | 76 | Head | — | England |
| 59 | Augusta Fuller-Williams | 72 | Wife-H | — | Tennessee |
| 60 | Elena Fuller-Williams | 32 | Daughter | — | Colorado |
| 61 | Gunda Gunderson | 54 | Head | Dealer | Norway |
| 62 | Anna Gunderson | 58 | Sister | — | New York |
| 64 | F. Ellis-Harland | 52 | Head | Oil Promoter | Kentucky |
| 65 | Elizabeth Ellis-Harland | 51 | Servant | Servant | Germany |
| 66 | Robert Ellis-Harland | 29 | Boarder | Dresser | Illinois |
| 67 | Alice Ellis-Harland | 25 | Boarder | — | Minnesota |
| 68 | Ruth Mcguire | 26 | Boarder | Saleswoman | Missouri |
| 69 | Henry C. Watts | 35 | Head | Cutter | Illinois |
| 70 | Benedicta Watts | 33 | Wife-H | — | Iowa |
| 71 | Julia Donahue | 26 | Servant | Servant | Michigan |
| 72 | Harry L. Mason THIS PERSON | 40 | Head | Engineer | California |
| 73 | Edith Mason | 38 | Wife-H | — | California |
| 74 | Harry Jr. Mason | 7 | Son | — | California |
| 75 | Rose Mason | 4 | Daughter | — | California |
| 77 | Gertrude H. Wilson | 54 | Head | — | New York |
| 78 | Alice Cole | 75 | Head | — | Illinois |
| 79 | Mary Pearson | 41 | Servant | Servant | Illinois |
| 80 | Lester M. Dickerson | 52 | Head | Motor Transfer | Pennsylvania |
| 81 | Leola Dickerson | 53 | Wife-H | — | Pennsylvania |
| 82 | Edna Dickerson | 27 | Daughter | — | — |
| 83 | Wilson Dickerson | 26 | Son | Manager | Pennsylvania |
| 84 | Wilda Dickerson | 24 | Daughter | Teacher | Pennsylvania |
| 85 | Edward Vail | 51 | Head | Rancher | California |
| 86 | Mary Vail | 47 | Wife-H | — | Illinois |
| 87 | Marie Vail | 5 | Daughter | — | California |
| 88 | Meryl Huston | 44 | Servant | Servant | Texas |
| 89 | Julia J. Woodruff | 57 | Head | — | Ohio |
| 90 | Ruth B. Woodruff | 22 | Daughter | — | Ohio |
| 91 | Henry Yee | 34 | Servant | Servant | China |
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)