MR
Martha Ross — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Los Angeles, California
Our Model Tree links this Martha Ross across the 1930 and 1940 US Censuses in Los Angeles, California (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 7-person household.
Age 7
b. ~1923
Female
Daughter
Born: Utah
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Los Angeles, California |
| Surname | Ross |
| Given Name | Martha J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Utah |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Utah |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
| Township / Ward | Monrovia City |
| Est. Birth Year | ~1923 |
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 Martha | Age | Birth yr |
|---|---|---|---|---|
| Virginia Ross | Daughter | — | 9 | ~1921 |
| Betty Ross | Daughter | — | 12 | ~1918 |
| Charles Ross | Head | — | 46 | ~1884 |
| Martha Ross | Daughter | — | 7 | ~1923 |
| Vernon Ross | Son | — | 15 | ~1915 |
| Hazel Ross | Spouse | — | 36 | ~1894 |
| Mildred Ross | Daughter | — | 13 | ~1917 |
Census Appearances
1930
Los Angeles, …
Daughter, age 7
Los Angeles, California · implied b. ~1923 — 7 household members
| Surname | Ross |
| Given Name | Martha J. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Utah |
| Father's Birthplace | Kansas |
| Mother's Birthplace | Utah |
| Can Read/Write | Yes |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
1940
Los-Angeles-County, California
Head, age 18
Los-Angeles-County, California · implied b. ~1922 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ross |
| Given Name | Mayrie G |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 18 |
| Marital Status | Divorced |
| Birthplace | Utah |
| 1935 Residence (City) | Los Angeles City |
| 1935 Residence (County) | Los Angeles |
| Occupation | Saleslady |
| Industry | Dept Store |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 575 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Utah |
| Birth Country | United States |
| Birthplace (normalized) | utah |
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 Martha Ross across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Martha Ross
Daughter · 1930 · age 7 · b. ~1923 · California
★ You are viewing this record
Sibling
Vernon Ross
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mildred Ross
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Ross
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Virginia Ross
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 — Los Angeles, California
Open full size
1930 US Federal Census — Los Angeles, California
Page Contents
50 people indexed on this census page (ia:1930:californiacensus00reel167:0163)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Mose | 43 | Head | Manager | Kansas |
| 2 | Lillian Mose | 42 | Wife | — | Kansas |
| 3 | Mildred Mose | 21 | Daughter | Clerk | Kansas |
| 4 | John Jr. Mose | 17 | Son | — | Kansas |
| 5 | Dorothy Mose | 12 | Daughter | — | Kansas |
| 6 | Charles E. Hansen | 42 | Head | Cashier | Ohio |
| 7 | William E. Hansen | 13 | Son | — | California |
| 8 | Lynn E. Hansen | 8 | Son | — | California |
| 9 | Charles E. Hansen | 5 | Son | — | California |
| 10 | Charles E. Ross | 46 | Head | Carpenter | Kansas |
| 11 | Hazel B. Ross | 36 | Wife | Waitress | Utah |
| 12 | Vernon B. Ross | 15 | Son | — | Utah |
| 13 | Mildred M. Ross | 13 | Daughter | — | Utah |
| 14 | Betty J. Ross | 12 | Daughter | — | Utah |
| 15 | Virginia J. Ross | 9 | Daughter | — | Utah |
| 16 | Martha J. Ross THIS PERSON | 7 | Daughter | — | Utah |
| 17 | Ernest R. Bryant | 52 | Head | Proprietor | Kansas |
| 18 | Minnie T. Bryant | 41 | Wife | Cashier | Kansas |
| 19 | William J. Schied | 41 | Head | Salesman | Illinois |
| 20 | Lillian M. Schied | 41 | Wife | — | Illinois |
| 21 | James Lynch | 57 | Head | — | New York |
| 22 | Nellie Lynch | 53 | Wife | — | Illinois |
| 23 | Julio Garcia | 39 | Head | Laborer | Mexico |
| 24 | Agnes Garcia | 32 | Wife | — | California |
| 25 | Julia Garcia | 17 | Daughter | — | California |
| 26 | Erica Garcia | 15 | Daughter | — | California |
| 27 | Julio Jr. Garcia | 13 | Son | — | California |
| 28 | Theodore Garcia | 11 | Son | — | California |
| 29 | Anita Garcia | 9 | Daughter | — | California |
| 30 | David Garcia | 7 | Son | — | California |
| 31 | Ignacio Perez | 42 | Head | Laborer | Mexico |
| 32 | Anita Perez | 37 | Wife | — | Mexico |
| 33 | Ignacio Jr. Perez | 16 | Son | — | Mexico |
| 34 | Henry Perez | 14 | Son | — | Mexico |
| 35 | Hortense Perez | 11 | Daughter | — | Mexico |
| 36 | Carmen Perez | 9 | Daughter | — | Mexico |
| 37 | Casper Perez | 7 | Son | — | Mexico |
| 38 | Emilio Romero | 37 | Head | Laborer | Mexico |
| 39 | Julia M. Romero | 38 | Wife | — | Mexico |
| 40 | Mary M. Romero | 11 | Daughter | — | California |
| 41 | Julia Romero | 8 | Daughter | — | Mexico |
| 42 | Matilda Romero | 2 | Daughter | — | Mexico |
| 43 | Emilio Jr. Romero | 1 | Son | — | Mexico |
| 44 | Jesus E. Romero | 44 | Head | Laborer | Mexico |
| 45 | Juliana Romero | 42 | Wife | — | Mexico |
| 46 | Mary L. Romero | 18 | Daughter | Laborer | Mexico |
| 47 | Jesus Jr. Romero | 16 | Son | — | Mexico |
| 48 | John Romero | 13 | Son | — | Mexico |
| 49 | Augustine M. Romero | 10 | Son | — | Mexico |
| 50 | Isidore Romero | 8 | Son | — | Mexico |
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)