JL
John Laughlin — 1940 US Census Record
Model Tree available1940 United States Federal Census · Douglas-County, Kansas
Our Model Tree links this John Laughlin across the 1920, 1930 and 1940 US Censuses in Douglas-County, Kansas (XGBoost, ~Confirmed), with identified parents John & Ruth — first a son (b.~1919), then head of a 5-person household.
Age 21
b. ~1919
Male
Son
Born: Kansas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Douglas-County, Kansas |
| Surname | Laughlin |
| Given Name | John F Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Palmyra Township |
| 1935 Residence (County) | Douglas |
| Additional Details | |
| Occupation | Farm Helper |
| Industry | General Farm |
| Class of Worker | NP |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
| Occupation | Farm Helper |
| Township / Ward | Palmyra Township |
| Est. Birth Year | ~1919 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| John Laughlin | Son | — | 21 | ~1919 |
| Shirley Laughlin | Daughter | — | 8 | ~1932 |
| Melba Laughlin | Daughter | — | 25 | ~1915 |
| Ruth Laughlin | Spouse | — | 50 | ~1890 |
| John Laughlin | Head | — | 54 | ~1886 |
Census Appearances
1920
Douglas, Kansas
Son, age 1
Douglas, Kansas · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Laughlin |
| Given Name | John Jr. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | North Carolina |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1930
Douglas, Kansas
Son, age 11
Douglas, Kansas · implied b. ~1919 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Laughlin |
| Given Name | John Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Kansas |
| Father's Birthplace | North Carolina |
| Mother's Birthplace | North Carolina |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Kansas |
| Birth Country | United States |
| Birthplace (normalized) | kansas |
1940
Douglas-County, Kansas
Son, age 21
Douglas-County, Kansas · implied b. ~1919 — 5 household members
| Surname | Laughlin |
| Given Name | John F Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Kansas |
| 1935 Residence (City) | Palmyra Township |
| 1935 Residence (County) | Douglas |
| Occupation | Farm Helper |
| Industry | General Farm |
| Class of Worker | NP |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| 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 John Laughlin across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Laughlin (~0.92 confidence) and mother Ruth Laughlin (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Laughlin
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Ruth Laughlin
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Laughlin
Son · 1940 · age 21 · b. ~1919 · Kansas
★ You are viewing this record
Sibling
Melba Laughlin
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Shirley Laughlin
Sibling · 1940 · age 8
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 — Douglas-County, Kansas
Open full size
1940 US Federal Census — Douglas-County, Kansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01229-01012)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Myrtle R Coit | 51 | Wife | — | Illinois |
| 42 | Earl D Coit | 18 | Son | — | Montana |
| 43 | Lloyd H Coit | 15 | Son | — | Montana |
| 44 | Woodrow W Sturdy | 26 | Head | Farmer | Kansas |
| 45 | Helen F Sturdy | 19 | Wife | — | Kansas |
| 46 | John F Laughlin | 54 | Head | Farmer | North Carolina |
| 47 | Ruth E Laughlin | 50 | Wife | — | North Carolina |
| 48 | Melba R Laughlin | 25 | Daughter | Teacher | Kansas |
| 49 | John F Jr Laughlin THIS PERSON | 21 | Son | Farm Helper | Kansas |
| 50 | Shirley Ann Laughlin | 8 | Daughter | — | Kansas |
| 51 | Ross Stone | 54 | Head | Farmer | Missouri |
| 52 | Ethyl M Stone | 50 | Wife | — | Missouri |
| 53 | William T Stone | 24 | Son | — | Oklahoma |
| 54 | Fern Stone | 22 | Daughter | — | Oklahoma |
| 55 | Maxine Stone | 19 | Daughter | — | Oklahoma |
| 56 | Flavia Stone | 17 | Daughter | — | Missouri |
| 57 | Betty Jean Stone | 14 | Daughter | — | Missouri |
| 58 | John A Fowler | 32 | Head | Farmer | Kansas |
| 59 | Opal E Fowler | 28 | Wife | — | Kansas |
| 60 | Mary E Fowler | 8 | Daughter | — | Kansas |
| 61 | Anita Marie Fowler | 6 | Daughter | — | Kansas |
| 62 | Jeanice Fowler | 5 | Daughter | — | Kansas |
| 63 | Gus F Olson | 57 | Head | Farmer | Kansas |
| 64 | Charlie A Olson | 55 | Brother | Carpenter | Kansas |
| 65 | Oscar F Olson | 48 | Brother | Farm Hand | Kansas |
| 66 | Arthur G Hammond | 54 | Head | Farmer | Kansas |
| 67 | Margaret E Hammond | 53 | Wife | — | Kansas |
| 68 | Florence G Hammond | 20 | Daughter | — | Kansas |
| 69 | Roberta R Hammond | 18 | Daughter | — | Kansas |
| 70 | Edith E Hammond | 15 | Daughter | — | Kansas |
| 71 | Evelyn M Hammond | 13 | Daughter | — | Kansas |
| 72 | Montie H Randal | 32 | Head | Farmer | Kansas |
| 73 | Loyia M Randal | 23 | Wife | — | Kansas |
| 74 | Mcduane Randal | 3 | Son | — | Kansas |
| 75 | Jane L Randal | 1 | Daughter | — | Kansas |
| 76 | Isabelle C Dean | 8 | Sister-in-law | — | Kansas |
| 77 | Raymond R La Duke | 38 | Head | Farmer | Kansas |
| 78 | Edith E La Duke | 32 | Wife | — | Kansas |
| 79 | Arthur E La Duke | 13 | Son | — | Kansas |
| 80 | Dorothy J La Duke | 7 | Daughter | — | Kansas |
Related Census Records
Pedigree Summary
John + 2 siblings
Gen 1 · 2 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)