LS
Lawrence Smith — 1930 US Census Record
Model Tree available1930 United States Federal Census · Los Angeles, California
Our Model Tree links this Lawrence Smith across the 1910, 1920 and 1930 US Censuses in Los Angeles, California (XGBoost, ~Confirmed), with identified parents Thomas & John — first a son (b.~1908), then head of a 5-person household.
Age 22
b. ~1908
Male
Son
Born: Kansas
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Los Angeles, California |
| Surname | Smith |
| Given Name | Lawrence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Kansas |
| Age at First Marriage | 22 |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Texas |
| Additional Details | |
| Occupation | Electrician |
| Industry | Plants Power |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Occupation | Electrician |
| Township / Ward | Whittier City |
| Est. Birth Year | ~1908 |
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 Lawrence | Age | Birth yr |
|---|---|---|---|---|
| Violet Smith | Daughter | — | 15 | ~1915 |
| Sara Smith | Daughter | — | 24 | ~1906 |
| John Smith | Head | — | 55 | ~1875 |
| John Smith | Son | — | 9 | ~1921 |
| Lawrence Smith | Son | — | 22 | ~1908 |
Census Appearances
1910
Los Angeles, …
Son, age 2
Los Angeles, California · implied b. ~1908 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Lawrence R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Texas |
| Occupation | none |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1920
Los Angeles, …
Son, age 11
Los Angeles, California · implied b. ~1909 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Lawrence B. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Texas |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1930
Los Angeles, …
Son, age 22
Los Angeles, California · implied b. ~1908 — 5 household members
| Surname | Smith |
| Given Name | Lawrence |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Kansas |
| Age at First Marriage | 22 |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Texas |
| Occupation | Electrician |
| Industry | Plants Power |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
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 Lawrence Smith across 3 US Census years (1910, 1920 and 1930) in Los Angeles, California, using XGBoost record linkage. Identified parents: father Thomas Smith (~0.92 confidence) and father John Smith (~0.92 confidence) and father John Smith (~0.92 confidence) and mother Della Smith (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Smith
b. ~1872
Source father
● Household
· direct · ~0.92
Father
John Smith
b. ~1875
Source father
● Household
· direct · ~0.92
Father
John Smith
b. ~1875
Source father
● Household
· direct · ~0.92
Mother
Della Smith
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Lawrence Smith
Son · 1930 · age 22 · b. ~1908 · California
★ You are viewing this record
Sibling
Violet Smith
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sara Smith
Sibling · 1930 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Smith
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:californiacensus00reel175:0772)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Antonio Sanchez | 53 | Head | Fruit Picker | Mexico |
| 2 | Savina Sanchez | 47 | Wife | — | Mexico |
| 3 | Guadalupe Sanchez | 17 | Son | — | Mexico |
| 4 | Lorenzo Sanchez | 20 | Son | — | Mexico |
| 5 | Mary Sanchez | 14 | Daughter | — | Mexico |
| 6 | Andres Aguilera | 25 | Head | Laborer | Mexico |
| 7 | Jessie Aguilera | 27 | Wife | — | Mexico |
| 8 | Willis R. Harbour | 71 | Head | Laborer | Ohio |
| 9 | Alice E. Harbour | 68 | Wife | — | Illinois |
| 10 | Bernard W. Harbour | 47 | Son | Laborer | Kansas |
| 11 | Jennie J. Harbour | 37 | Daughter-in-law | — | Missouri |
| 12 | Loran R. Harbour | 16 | Grandson | — | Canada-English |
| 13 | Merle L. Harbour | 15 | Grandson | — | Canada-English |
| 14 | Velma F. Harbour | 13 | Granddaughter | — | Canada-English |
| 15 | Roberto Solano | 40 | Head | Fruit Picker | Mexico |
| 16 | Maria Solano | 35 | Wife | — | Mexico |
| 17 | John Smith | 55 | Head | Janitor | Missouri |
| 18 | Sara Smith | 24 | Daughter | Telephone Operator | Kansas |
| 19 | Lawrence Smith THIS PERSON | 22 | Son | Electrician | Kansas |
| 20 | Violet Smith | 15 | Daughter | — | California |
| 21 | John B. Smith | 9 | Son | — | California |
| 22 | Roy Barr | 26 | Head | — | California |
| 23 | Gertrude Barr | 25 | Wife | — | California |
| 24 | Robert Barr | 5 | Son | Signal Man | California |
| 25 | Jack Barr | 2 | Son | — | California |
| 26 | Norman Donovan | 35 | Lodger | Signal Man | Maryland |
| 27 | William B. Culp | 47 | Head | Truck Driver | Alabama |
| 28 | Emilie Culp | 42 | Wife | — | Germany |
| 29 | Beverly Culp | 9 | Daughter | — | California |
| 30 | Barbara Culp | 8 | Daughter | — | California |
| 31 | William Culp | 6 | Son | — | California |
| 32 | Betty Culp | 3 | Daughter | — | California |
| 33 | Walter W. Horney | 22 | Head | Truck Driver | California |
| 34 | Hazel R. Horney | 20 | Wife | — | California |
| 35 | Barbara J. Horney | 1 | Daughter | — | California |
| 36 | Oliver P. Reynolds | 61 | Head | Barber | Indiana |
| 37 | Minnie R. Reynolds | 60 | Wife | Practical Nurse | Ohio |
| 38 | Salvador Piña | 30 | Head | Fruit Picker | Mexico |
| 39 | Dolores Piña | 24 | Wife | — | Mexico |
| 40 | Arthur Arthur | 49 | Head | Decorator | Iowa |
| 41 | Elsie Arthur | 45 | Wife | — | Iowa |
| 42 | Lewis Arthur | 21 | Son | Book Keeper | Iowa |
| 43 | Anna M. Arthur | 12 | Daughter | — | Iowa |
| 44 | Wayne Arthur | 9 | Son | — | Iowa |
| 45 | Harry Wheeler | 48 | Head | Laborer | Texas |
| 46 | Leona Wheeler | 31 | Wife | — | Mexico |
| 47 | Esther Wheeler | 8 | Daughter | — | California |
| 48 | Henry Wheeler | 6 | Son | — | California |
| 49 | Alinda Wheeler | 4 | Daughter | — | California |
| 50 | Harry Wheeler | 2 | Son | — | California |
Pedigree Summary
Lawrence + 3 siblings
Gen 1 · 4 parents
~0.92
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)