LS
Lawrence Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Ashtabula-County, Ohio
Our Model Tree links this Lawrence Smith across the 1920, 1930 and 1940 US Censuses in Ashtabula-County, Ohio (XGBoost, ~Confirmed), with identified parents Roy & Will — first a son (b.~1918), then head of a 5-person household.
Age 22
b. ~1918
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Ashtabula-County, Ohio |
| Surname | Smith |
| Given Name | Lawrence |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Conneaut City |
| 1935 Residence (County) | Ashtabula |
| Additional Details | |
| Occupation | Seaman |
| Industry | Great Lakes Steam boat |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 600 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Seaman |
| Township / Ward | Conneaut City |
| Est. Birth Year | ~1918 |
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 1940 census.
| Name | Relation to head | Relative to Lawrence | Age | Birth yr |
|---|---|---|---|---|
| Marion Smith | Daughter | — | 21 | ~1919 |
| Shirley Smith | Daughter | — | 13 | ~1927 |
| Roy Smith | Head | — | 56 | ~1884 |
| Lawrence Smith | Son | — | 22 | ~1918 |
| Margaret Smith | Spouse | — | 50 | ~1890 |
Census Appearances
1920
Ashtabula, Ohio
Son, age 2
Ashtabula, Ohio · implied b. ~1918 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Laurance |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Pennsylvania |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Ashtabula, Ohio
Son, age 12
Ashtabula, Ohio · implied b. ~1918 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Lawrence A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Ashtabula-County, Ohio
Son, age 22
Ashtabula-County, Ohio · implied b. ~1918 — 5 household members
| Surname | Smith |
| Given Name | Lawrence |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Conneaut City |
| 1935 Residence (County) | Ashtabula |
| Occupation | Seaman |
| Industry | Great Lakes Steam boat |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 600 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Roy Smith (~0.92 confidence) and father Will Smith (~0.92 confidence) and father Roy Smith (~0.92 confidence) and mother Margaret Smith (~0.92 confidence) and mother Mabel Smith (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Roy Smith
b. ~1883
Source father
● Household
· direct · ~0.92
Father
Will Smith
b. ~1883
Source father
● Household
· direct · ~0.92
Father
Roy Smith
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Margaret Smith
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Mabel Smith
b. ~1891
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Lawrence Smith
Son · 1940 · age 22 · b. ~1918 · Ohio
★ You are viewing this record
Sibling
Shirley Smith
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marion Smith
Sibling · 1940 · age 21
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
1940 US Federal Census — Ashtabula-County, Ohio
Open full size
1940 US Federal Census — Ashtabula-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03023-00943)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Robert Abbey | 25 | son | Seaman | Ohio |
| 2 | Elizabeth Benson | 28 | daughter | — | Ohio |
| 3 | Donald Benson | 10 | grandson | — | Ohio |
| 4 | Thomas Benson | 7 | grandson | — | Ohio |
| 5 | Frances Benson | 5 | granddaughter | — | Ohio |
| 6 | Clyde Benson | 25 | son-in-law | Seaman | Ohio |
| 7 | Roy M. Smith | 56 | Head | Carpenter | Ohio |
| 8 | Margaret Smith | 50 | wife | — | Pennsylvania |
| 9 | Lawrence Smith THIS PERSON | 22 | son | Seaman | Ohio |
| 10 | Marion Smith | 21 | daughter | Nurse | Ohio |
| 11 | Shirley Smith | 13 | daughter | — | Ohio |
| 12 | Seth M. Good | 55 | Head | Engineer | Pennsylvania |
| 13 | Elizabeth Good | 49 | wife | — | Ohio |
| 14 | Peter Di Pofi | 46 | Head | Merchant | Italy |
| 15 | Linda A. Di Pofi | 41 | wife | Clerk | Canada |
| 16 | Clarence J. Di Pofi | 20 | son | Delivery | Ohio |
| 17 | Joseph Di Pofi | 65 | brother | Car Repairer | Italy |
| 18 | Paul S. Davis | 43 | Head | Laborer | Ohio |
| 19 | Martha H. Davis | 39 | wife | — | Illinois |
| 20 | Cynthia A. Davis | 7 | daughter | — | Ohio |
| 21 | Geraldine Anderson | 40 | Head | Stenographer | Ohio |
| 22 | Henry A. Anderson | 57 | brother | — | Sweden |
| 23 | Earl Herb | 49 | Head | Machinist | Ohio |
| 24 | Una E. Herb | 44 | wife | — | Minnesota |
| 25 | Joseph M. Di Nicola | 28 | Head | Laborer | Ohio |
| 26 | Ruth K. Di Nicola | 24 | wife | — | Ohio |
| 27 | Delberta M. Di Nicola | 3 | daughter | — | Ohio |
| 28 | Robert Lewis | 63 | father-in-law | Laborer | Pennsylvania |
| 29 | Carrie Hammond | 64 | Head | — | Pennsylvania |
| 30 | Bertha Gregor | 64 | Head | — | New York |
| 31 | Clarence Wright | 47 | Head | Merchant | Ohio |
| 32 | Ethel Wright | 44 | wife | Clerk | Ohio |
| 33 | Ina A. Trister | 69 | mother-in-law | — | Ohio |
| 34 | Lawayne J. Stewart | 42 | Head | Machinist | Michigan |
| 35 | Ethel Stewart | 40 | wife | — | New York |
| 36 | Roland L. Stewart | 20 | son | Seaman | Ohio |
| 37 | Harland Stewart | 16 | son | Usher | Ohio |
| 38 | Barbara Stewart | 11 | daughter | — | Ohio |
| 39 | Henry Stiebling | 41 | Head | General Yard Foreman | Ohio |
| 40 | Violet Stiebling | 42 | wife | — | Ohio |
Pedigree Summary
Lawrence + 2 siblings
Gen 1 · 5 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)