JK
John Kirby — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Newton-County, Mississippi
Our Model Tree links this John Kirby across the 1930 and 1940 US Censuses in Newton-County, Mississippi (XGBoost, ~Confirmed) — first a head (b.~1891), then head of a 8-person household.
Age 49
b. ~1891
Male
Head
Born: Mississippi
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Newton-County, Mississippi |
| Surname | Kirby |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Mississippi |
| 1935 Residence (City) | Beat 1 |
| 1935 Residence (County) | Newton |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 50 |
| Highest Grade | 8 |
| 1935 Residence | Mississippi |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
| Occupation | Farmer |
| Township / Ward | Beat 1 |
| Est. Birth Year | ~1891 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Kirby | Spouse | — | 47 | ~1893 |
| Leon Kirby | Son | — | 5 | ~1935 |
| John Kirby | Head | — | 49 | ~1891 |
| O'Neal Kirby | Son | — | 7 | ~1933 |
| Kermit Kirby | Son | — | 16 | ~1924 |
| Nicholas Kirby | Son | — | 10 | ~1930 |
| Charles Kirby | Son | — | 12 | ~1928 |
| J Kirby | Son | — | 19 | ~1921 |
Census Appearances
1930
Newton, Mississippi
Head, age 39
Newton, Mississippi · implied b. ~1891 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kirby |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Mississippi |
| Age at First Marriage | 29 |
| Father's Birthplace | Mississippi |
| Mother's Birthplace | Mississippi |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | E |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Veteran | No |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
1940
Newton-County, Mississippi
Head, age 49
Newton-County, Mississippi · implied b. ~1891 — 8 household members
| Surname | Kirby |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 49 |
| Marital Status | Married |
| Birthplace | Mississippi |
| 1935 Residence (City) | Beat 1 |
| 1935 Residence (County) | Newton |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 50 |
| Highest Grade | 8 |
| 1935 Residence | Mississippi |
| Birth State | Mississippi |
| Birth Country | United States |
| Birthplace (normalized) | mississippi |
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 Kirby across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Kirby
Head · 1940 · age 49 · b. ~1891 · Mississippi
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Newton-County, Mississippi
Open full size
1940 US Federal Census — Newton-County, Mississippi
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02053-00087)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Willie Smith | 25 | Head | — | Mississippi |
| 42 | Jim Hollingsworth | 48 | Head | Farmer | Mississippi |
| 43 | Ruby Hollingsworth | 45 | Wife | — | Mississippi |
| 44 | Jack Hollingsworth | 9 | Son | — | Mississippi |
| 45 | Ruby D. Hollingsworth | 2 | Daughter | — | Mississippi |
| 46 | Tom Cranford | 56 | Head | Farmer | Mississippi |
| 47 | Alice Cranford | 54 | Wife | — | Mississippi |
| 48 | Ulmer Cranford | 22 | Son | Farm | Mississippi |
| 49 | Cedell Cranford | 17 | Son | Farm | Mississippi |
| 50 | Jesse Hollingsworth | 51 | Head | Farmer | Mississippi |
| 51 | Ruby Hollingsworth | 51 | Wife | — | Mississippi |
| 52 | Kenneth Hollingsworth | 19 | Son | Farmer | Mississippi |
| 53 | Irene Hollingsworth | 17 | Daughter | — | Mississippi |
| 54 | Inez Hollingsworth | 17 | Daughter | — | Mississippi |
| 55 | Jesse C. Hollingsworth | 12 | Son | — | Mississippi |
| 56 | Sally Doolittle | 73 | Head | — | Mississippi |
| 57 | Ruth Johnson | 49 | Daughter | — | Mississippi |
| 58 | Mary R. Johnson | 19 | Granddaughter | — | Mississippi |
| 59 | George Johnson | 17 | Grandson | — | Mississippi |
| 60 | Margie Johnson | 11 | Granddaughter | — | Mississippi |
| 61 | Spiney Doolittle | 22 | Grandson | Farmer | Mississippi |
| 62 | Lonnie Morris | 35 | Head | Farmer | Mississippi |
| 63 | Amelia Morris | 30 | Wife | — | Mississippi |
| 64 | Grant Jr. Mccune | 25 | In-law | Farmer | Mississippi |
| 65 | Dan Boyd | 26 | Head | Farmer | Mississippi |
| 66 | Auteil O. Boyd | 24 | Wife | — | Mississippi |
| 67 | Dannette Boyd | 7 | Daughter | — | Mississippi |
| 68 | Henry A. Boyd | 3 | Son | — | Mississippi |
| 69 | Ronald P. Boyd | 1 | Son | — | Mississippi |
| 70 | John Kirby THIS PERSON | 49 | Head | Farmer | Mississippi |
| 71 | Elizabeth Kirby | 47 | Wife | — | Mississippi |
| 72 | J. Boyle Kirby | 19 | Son | — | Mississippi |
| 73 | Kermit Kirby | 16 | Son | — | Mississippi |
| 74 | Charles Kirby | 12 | Son | — | Mississippi |
| 75 | Nicholas Kirby | 10 | Son | — | Mississippi |
| 76 | O'Neal Kirby | 7 | Son | — | Mississippi |
| 77 | Leon Kirby | 5 | Son | — | Mississippi |
| 78 | Clifton Mcmullen | 33 | Head | Farmer | Mississippi |
| 79 | Cleo Mcmullen | 33 | Wife | — | Mississippi |
| 80 | Mary E. Mcmullen | 7 | Daughter | — | Mississippi |
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)