LS
Lawrence Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Allen-County, Kansas
Our Model Tree links this Lawrence Smith across the 1920, 1930 and 1940 US Censuses in Allen-County, Kansas (XGBoost, ~Confirmed), with identified parents B & Bert — first a son (b.~1917), then head of a 6-person household.
Age 23
b. ~1917
Male
Son
Born: Kansas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Allen-County, Kansas |
| Surname | Smith |
| Given Name | Lawrence O. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Iola city |
| 1935 Residence (County) | Allen |
| Additional Details | |
| Occupation | Ax man |
| Industry | Government engineers |
| Class of Worker | GW |
| Hours Worked | 26 |
| Income (1939) | 595 |
| Highest Grade | C 2 |
| 1935 Residence | Same house |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Occupation | Ax Man |
| Township / Ward | Iola City |
| Est. Birth Year | ~1917 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Lawrence | Age | Birth yr |
|---|---|---|---|---|
| Laura Smith | Daughter | — | 30 | ~1910 |
| Bert Smith | Head | — | 57 | ~1883 |
| Extra Smith | Other | — | — | |
| Lawrence Smith | Son | — | 23 | ~1917 |
| Walter Smith | Son | — | 14 | ~1926 |
| Sarah Smith | Spouse | — | 51 | ~1889 |
Census Appearances
1920
Allen, Kansas
Son, age 3
Allen, Kansas · implied b. ~1917 — 6 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 | 3 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Occupation | none |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1930
Allen, Kansas
Son, age 13
Allen, Kansas · implied b. ~1917 — 7 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 | 13 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Missouri |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Allen-County, Kansas
Son, age 23
Allen-County, Kansas · implied b. ~1917 — 6 household members
| Surname | Smith |
| Given Name | Lawrence O. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Iola city |
| 1935 Residence (County) | Allen |
| Occupation | Ax man |
| Industry | Government engineers |
| Class of Worker | GW |
| Hours Worked | 26 |
| Income (1939) | 595 |
| Highest Grade | C 2 |
| 1935 Residence | Same house |
| 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 (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father B Smith (~0.92 confidence) and father Bert Smith (~0.92 confidence) and mother Sarah Smith (~0.92 confidence) and mother Lula Smith (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
B Smith
b. ~1883
Source father
● Household
· direct · ~0.92
Father
Bert Smith
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Sarah Smith
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Lula Smith
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Lawrence Smith
Son · 1940 · age 23 · b. ~1917 · Kansas
★ You are viewing this record
Sibling
Walter Smith
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Laura Smith
Sibling · 1940 · age 30
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 — Allen-County, Kansas
Open full size
1940 US Federal Census — Allen-County, Kansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01218-00358)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Virginia Hurlock | 20 | daughter | Teacher | Kansas |
| 2 | Helen Hurlock | 18 | daughter | — | Kansas |
| 3 | Ben Hurlock | 16 | son | — | Kansas |
| 4 | Diana Hurlock | 14 | daughter | — | Kansas |
| 5 | Jerry Hurlock | 8 | son | — | Kansas |
| 6 | Beth Ann Hurlock | 4 | daughter | — | Kansas |
| 7 | Stella Hulbert | 57 | Head | — | Illinois |
| 8 | Myrtle X Cole | 30 | daughter | Designer | Missouri |
| 9 | Edward Bush | 29 | son-in-law | Clerk | Kansas |
| 10 | Daughter Opal | None | F | Dress Factory | — |
| 11 | Granddaughter Barbara | None | F | — | — |
| 12 | Carol Cole | 10 | granddaughter | — | Kansas |
| 13 | Bert D. Smith | 57 | Head | Salesman | Missouri |
| 14 | Sarah J. Smith | 51 | wife | — | Missouri |
| 15 | Laura L. Smith | 30 | daughter | — | Missouri |
| 16 | Lawrence O. Smith THIS PERSON | 23 | son | Ax Man | Kansas |
| 17 | Walter E. Smith | 14 | son | — | Kansas |
| 18 | Extra Line Smith | None | — | — | — |
| 19 | Lula D. Newman | 58 | Head | — | Missouri |
| 20 | Viola Newman | 36 | daughter | — | Missouri |
| 21 | Patricia Stanley | 20 | lodger | Waitress | Kansas |
| 22 | Harlan Stanley | 27 | lodger | Mechanic | Kansas |
| 23 | Extra Line Stanley | None | — | — | — |
| 24 | Apel W. X Young | 55 | Head | County Engineer | Illinois |
| 25 | Mildred Young | 36 | wife | Assistant M.D. | Kansas |
| 26 | Byron Chaney | 17 | step son | — | Kansas |
| 27 | Bailey Chaney | 16 | step son | — | Colorado |
| 28 | Chas Campbell | 47 | servant | Housekeeper | Iowa |
| 29 | Cecil J. Stout | 43 | Head | Letter Carrier | Missouri |
| 30 | Lelia M. Stout | 39 | wife | — | Missouri |
| 31 | Victor L. Stout | 17 | son | — | Kansas |
| 32 | Vivian M. Stout | 15 | daughter | — | Kansas |
| 33 | Catherine Bard | 69 | Head | — | Illinois |
| 34 | Lucille Bard | 40 | daughter | Teacher | Kansas |
| 35 | Catherine Bard | 35 | daughter | Bookkeeper | Kansas |
| 36 | Elmer S. Reynolds | 44 | Head | Jeweler | Arkansas |
| 37 | Sena Reynolds | 37 | wife | — | Oklahoma |
| 38 | Roger Reynolds | 14 | son | — | Kansas |
| 39 | Patricia Reynolds | 12 | daughter | — | Kansas |
| 40 | Robert C. Brown | 67 | Head | — | Illinois |
Related Census Records
Pedigree Summary
Lawrence + 2 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 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)