JH
John Hardin — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Madison-County, Tennessee
Our Model Tree links this John Hardin across the 1930 and 1940 US Censuses in Madison-County, Tennessee (XGBoost, ~Confirmed) — first a head (b.~1895), then head of a 6-person household.
Age 45
b. ~1895
Male
Head
Born: Tennessee
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Madison-County, Tennessee |
| Surname | Hardin |
| Given Name | John M |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Tennessee |
| 1935 Residence (City) | 9th Civil District |
| 1935 Residence (County) | Madison |
| Additional Details | |
| Occupation | Operator |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
| Occupation | Operator |
| Township / Ward | 9Th Civil District |
| Est. Birth Year | ~1895 |
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 John | Age | Birth yr |
|---|---|---|---|---|
| John Hardin | Head | — | 45 | ~1895 |
| J Hardin | Son | — | 15 | ~1925 |
| Mazie Hardin | Daughter | — | 16 | ~1924 |
| Mamie Hardin | Spouse | — | 37 | ~1903 |
| Marilyn Hardin | Daughter | — | 17 | ~1923 |
| Harnie Hardin | Son | — | 13 | ~1927 |
Census Appearances
1930
Madison, Tennessee
Head, age 35
Madison, Tennessee · implied b. ~1895 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Harden |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Tennessee |
| Age at First Marriage | 19 |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Occupation | Farmer |
| Industry | General |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
1940
Madison-County, Tennessee
Head, age 45
Madison-County, Tennessee · implied b. ~1895 — 6 household members
| Surname | Hardin |
| Given Name | John M |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 45 |
| Marital Status | Married |
| Birthplace | Tennessee |
| 1935 Residence (City) | 9th Civil District |
| 1935 Residence (County) | Madison |
| Occupation | Operator |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 0 |
| Highest Grade | No 7 |
| 1935 Residence | Same place |
| 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 Hardin across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Hardin
Head · 1940 · age 45 · b. ~1895 · 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 — Madison-County, Tennessee
Open full size
1940 US Federal Census — Madison-County, Tennessee
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03918-00653)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Tareda G Elder | 20 | Wife | — | Tennessee |
| 42 | John M Hardin THIS PERSON | 45 | Head | Operator | Tennessee |
| 43 | Mamie H Hardin | 37 | Wife | — | Tennessee |
| 44 | Marilyn Hardin | 17 | Daughter | — | Tennessee |
| 45 | Mazie L Hardin | 16 | Daughter | — | Tennessee |
| 46 | J W Hardin | 15 | Son | — | Tennessee |
| 47 | Harnie R Hardin | 13 | Son | — | Tennessee |
| 48 | William R Milan | 71 | Head | Operator | Tennessee |
| 49 | Allie G Milan | 68 | Wife | — | Tennessee |
| 50 | Headam H Johnson | 46 | Head | Operator | Tennessee |
| 51 | Mamie A Johnson | 43 | Wife | — | Tennessee |
| 52 | J W Johnson | 20 | Son | — | Tennessee |
| 53 | Norman D Johnson | 10 | Son | — | Tennessee |
| 54 | Eugene L Helm | 31 | Head | Bus Driver | Tennessee |
| 55 | James C Rogers | 77 | Head | Operator | Tennessee |
| 56 | Roy J Rogers | 57 | Brother | Helper | Tennessee |
| 57 | Oliver C Henley | 48 | Head | Operator | Tennessee |
| 58 | Lissie A Henley | 51 | Wife | — | Tennessee |
| 59 | Mary D Henley | 17 | Daughter | — | Tennessee |
| 60 | James E Henley | 15 | Son | — | Tennessee |
| 61 | Welta Henley | 13 | Son | — | Tennessee |
| 62 | Lauren Henley | 11 | Daughter | — | Tennessee |
| 63 | Minnie J Henley | 7 | Daughter | — | Tennessee |
| 64 | William D Boyd | 31 | Head | Mecanic | Tennessee |
| 65 | Velma Boyd | 24 | Wife | — | Tennessee |
| 66 | Geraldine Boyd | 7 | Daughter | — | Tennessee |
| 67 | Halbert O Watlington | 62 | Head | Operator | Tennessee |
| 68 | Iara Watlington | 39 | Wife | — | Tennessee |
| 69 | Dimond D Watlington | 33 | Son | Operator | Tennessee |
| 70 | Ola D Watlington | 34 | Daughter-in-law | — | Tennessee |
| 71 | Dorothy Watlington | 11 | Granddaughter | — | Tennessee |
| 72 | Will Holland | 37 | Head | Operator | Tennessee |
| 73 | Annie M Holland | 34 | Wife | — | Tennessee |
| 74 | Edward Holland | 15 | Son | Helper | Tennessee |
| 75 | Lela M Holland | 12 | Daughter | — | Tennessee |
| 76 | Martha V Holland | 10 | Daughter | — | Tennessee |
| 77 | Ray Holland | 6 | Son | — | Tennessee |
| 78 | Mara S Deen | 63 | Mother-in-law | — | Tennessee |
| 79 | James W Rountree | 55 | Head | Operator | Tennessee |
| 80 | Elizabeth Rountree | 59 | Sister | — | Tennessee |
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)