JL
John Leonard — 1940 US Census Record
Model Tree available1940 United States Federal Census · Sullivan-County, Tennessee
Our Model Tree links this John Leonard across the 1920, 1930 and 1940 US Censuses in Sullivan-County, Tennessee (XGBoost, ~Confirmed), with identified parents Annie & James — first a head (b.~1909), then head of a 3-person household.
Age 31
b. ~1909
Male
Head
Born: Tennessee
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Sullivan-County, Tennessee |
| Surname | Leonard |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Tennessee |
| 1935 Residence (City) | Bristol |
| 1935 Residence (County) | Washington |
| Additional Details | |
| Occupation | Plumber |
| Industry | Water Works |
| Class of Worker | PW |
| Hours Worked | 55 |
| Income (1939) | 904 |
| Highest Grade | No 3 |
| 1935 Residence | Virginia |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
| Occupation | Plumber |
| Township / Ward | Bristol City |
| Est. Birth Year | ~1909 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Virginia Leonard | Daughter | — | 3 | ~1937 |
| John Leonard | Head | — | 31 | ~1909 |
| Stella Leonard | Spouse | — | 27 | ~1913 |
Census Appearances
1920
Sullivan, Tennessee
Son, age 11
Sullivan, Tennessee · implied b. ~1909 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leonard |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Tennessee |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
1930
Sullivan, Tennessee
Son, age 21
Sullivan, Tennessee · implied b. ~1909 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Leonard |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Tennessee |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Occupation | Laborer |
| Industry | General Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
1940
Sullivan-County, Tennessee
Head, age 31
Sullivan-County, Tennessee · implied b. ~1909 — 3 household members
| Surname | Leonard |
| Given Name | John H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 31 |
| Marital Status | Married |
| Birthplace | Tennessee |
| 1935 Residence (City) | Bristol |
| 1935 Residence (County) | Washington |
| Occupation | Plumber |
| Industry | Water Works |
| Class of Worker | PW |
| Hours Worked | 55 |
| Income (1939) | 904 |
| Highest Grade | No 3 |
| 1935 Residence | Virginia |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
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 Leonard across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Annie Leonard (~0.92 confidence) and father James Leonard (~0.92 confidence) and mother Jennie Leonard (~0.92 confidence) and father James Leonard (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Annie Leonard
b. ~1874
Source mother
● Household
· direct · ~0.92
Father
James Leonard
b. ~1877
Source father
● Household
· direct · ~0.92
Mother
Jennie Leonard
b. ~1878
Source mother
● Household
· direct · ~0.92
Father
James Leonard
b. ~1880
Source father
● Household
· direct · ~0.92
This person
Anchor record
John Leonard
Head · 1940 · age 31 · b. ~1909 · Tennessee
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Sullivan-County, Tennessee
Open full size
1940 US Federal Census — Sullivan-County, Tennessee
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03938-00544)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | James M. Glover | 54 | Head | Foreman | Tennessee |
| 2 | Paul Glover | 31 | Son | C.C.C. Camp | Tennessee |
| 3 | Ruby Glover | 29 | Daughter | Seamstress | Tennessee |
| 4 | John T. Thomas | 43 | Head | Inspector | Tennessee |
| 5 | John C. Thomas | 22 | Son | Assistant Manager | Tennessee |
| 6 | Katherine Thomas | 16 | Daughter | — | Tennessee |
| 7 | Horwell E. Everett | 52 | Head | Salesman | Tennessee |
| 8 | Freddie B. Everett | 41 | Wife | Saleslady | South Carolina |
| 9 | Horwell Jr. Everett | 20 | Son | Ship Fitter | Virginia |
| 10 | Fred E. Everett | 19 | Son | — | Virginia |
| 11 | Arthur Bedwell | 39 | Head | Salesman | Virginia |
| 12 | Hazel Bedwell | 33 | Wife | — | Tennessee |
| 13 | Reuben Willishner | 36 | Head | Bench Worker | Tennessee |
| 14 | Merindia Willishner | 42 | Wife | Seamstress | Tennessee |
| 15 | Bertie Hagy | 61 | Mother | — | Tennessee |
| 16 | Marion F. Hollyfield | 59 | Head | Water Carrier | Tennessee |
| 17 | Emma Hollyfield | 54 | Wife | — | Virginia |
| 18 | Easter Odell | 25 | Niece | — | Virginia |
| 19 | Henry Harbleroad | 64 | Head | Pipe Fitter | Tennessee |
| 20 | Mary E. Harbleroad | 66 | Wife | — | Virginia |
| 21 | Gladys Warren | 26 | Daughter | Proprietor | Tennessee |
| 22 | Henry B. Johnston | 7 | Grandson | — | Virginia |
| 23 | John H. Peters | 39 | Head | Proprietor | Tennessee |
| 24 | Beulah M. Peters | 28 | Wife | — | Virginia |
| 25 | Vernon Peters | 18 | Son | — | Tennessee |
| 26 | Lawrence Peters | 15 | Son | — | Tennessee |
| 27 | James P. Shipley | 55 | Head | Bridge Builder | Tennessee |
| 28 | Belle A. Shipley | 53 | Wife | — | Tennessee |
| 29 | Lou E. Hamlet | 32 | Head | Printer | Virginia |
| 30 | Ruth E. Hamlet | 32 | Wife | — | Tennessee |
| 31 | William G. Hamlet | 10 | Son | — | Virginia |
| 32 | George W. Hamlet | 66 | Head | — | Virginia |
| 33 | Pearl W. Hamlet | 60 | Wife | — | Virginia |
| 34 | Son Hamlet | 38 | Son | Machinist | Virginia |
| 35 | Alice Barnett | 71 | Head | — | Tennessee |
| 36 | Fred Barnett | 39 | Son | Painter | Tennessee |
| 37 | John H. Leonard THIS PERSON | 31 | Head | Plumber | Tennessee |
| 38 | Stella Leonard | 27 | Wife | — | Virginia |
| 39 | Virginia E. Leonard | 3 | Daughter | — | Tennessee |
| 40 | Betty Reynolds | 35 | Head | — | Tennessee |
Pedigree Summary
John
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)