JK
John Kirby — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Jackson-County, Missouri
Our Model Tree links this John Kirby across the 1920, 1930 and 1940 US Censuses in Jackson-County, Missouri (XGBoost, ~Confirmed) — first a head (b.~1872), then head of a 3-person household.
Age 68
b. ~1872
Male
Head
Born: Missouri
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Jackson-County, Missouri |
| Surname | Kirby |
| Given Name | John W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 68 |
| Marital Status | Widowed |
| Birthplace | Missouri |
| 1935 Residence (City) | Sni-A-Bar Twp. |
| 1935 Residence (County) | Jackson |
| Additional Details | |
| Occupation | farmer |
| Industry | farming |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Occupation | Farmer |
| Township / Ward | Sniabar Twp |
| Est. Birth Year | ~1872 |
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 |
|---|---|---|---|---|
| John Kirby | Head | — | 68 | ~1872 |
| Eleanor Kirby | Other | — | 54 | ~1886 |
| John Kirby | Son | — | 40 | ~1900 |
Census Appearances
1920
Jackson, Missouri
Head, age 48
Jackson, Missouri · implied b. ~1872 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kirby |
| Given Name | John W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 48 |
| Marital Status | Married |
| Birthplace | Missouri |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Missouri |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | Emp |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1930
Jackson, Missouri
Head, age 58
Jackson, Missouri · implied b. ~1872 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Kirby |
| Given Name | John F |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 58 |
| Marital Status | Widowed |
| Birthplace | Missouri |
| Age at First Marriage | 20 |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Virginia |
| Occupation | Farmer |
| Industry | Farming |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | 5 |
| Veteran | R |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
Jackson-County, Missouri
Head, age 68
Jackson-County, Missouri · implied b. ~1872 — 3 household members
| Surname | Kirby |
| Given Name | John W. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 68 |
| Marital Status | Widowed |
| Birthplace | Missouri |
| 1935 Residence (City) | Sni-A-Bar Twp. |
| 1935 Residence (County) | Jackson |
| Occupation | farmer |
| Industry | farming |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
John Kirby
Head · 1940 · age 68 · b. ~1872 · Missouri
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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 — Jackson-County, Missouri
Open full size
1940 US Federal Census — Jackson-County, Missouri
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-02116-00464)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | George Mcbroom | 42 | Head | Farmer | Missouri |
| 42 | Ola Mcbroom | 47 | Wife | None | Missouri |
| 43 | Norman Mcbroom | 19 | Son | None | Missouri |
| 44 | John Hughes | 59 | Head | Attendant Filling-Station | Missouri |
| 45 | Grace Hughes | 49 | Wife | None | Missouri |
| 46 | Ira G. Clutter | 53 | Head | Post-Office Clerk | Missouri |
| 47 | Grace Clutter | 49 | Wife | None | Missouri |
| 48 | Robert L. Clutter | 13 | Son | None | Missouri |
| 49 | Charlene Clutter | 4 | Daughter | None | Missouri |
| 50 | William Sharp | 69 | Head | Farmer | Missouri |
| 51 | Ross Bleich | 38 | Head | Mechanic | Missouri |
| 52 | Clara Bleich | 38 | Wife | None | Missouri |
| 53 | James A. Stillwell | 72 | Head | Farmer | Missouri |
| 54 | Rosa Stillwell | 73 | Wife | None | Minnesota |
| 55 | Charles Napier | 26 | Head | Herdsman | Scotland |
| 56 | Mildred Napier | 25 | Wife | None | Missouri |
| 57 | Fred Rose | 44 | Lodger | Cattleman | Scotland |
| 58 | Asa G. Storms | 40 | Head | Laborer | Missouri |
| 59 | Eunice Storms | 35 | Wife | None | Missouri |
| 60 | Gladys Storms | 18 | Daughter | Assistant Typing | Missouri |
| 61 | Kenneth Storms | 14 | Son | None | Missouri |
| 62 | Ray Storms | 8 | Son | None | Missouri |
| 63 | Don L. Fields | 50 | Head | Farmer | Indiana |
| 64 | Carrie Fields | 60 | Wife | None | Indiana |
| 65 | Wanda Fields | 25 | Daughter | None | Missouri |
| 66 | Hazel Fields | 20 | Daughter | None | Missouri |
| 67 | James M. Dorrell | 66 | Head | Farmer | Indiana |
| 68 | Glenna Dorrell | 55 | Wife | None | Indiana |
| 69 | Melvin E. Green | 25 | Head | Farmer | Missouri |
| 70 | Hazel Green | 25 | Wife | None | Missouri |
| 71 | William C. Arvin | 73 | Head | Farmer | Kentucky |
| 72 | Mary Jane Arvin | 59 | Wife | None | Missouri |
| 73 | Jesse W. Arvin | 31 | Son | Hired Laborer | Missouri |
| 74 | Roy Theodore Arvin | 25 | Son | Hired Laborer | Missouri |
| 75 | Ray Frances Arvin | 25 | Son | Hired Laborer | Missouri |
| 76 | John W. Kirby THIS PERSON | 68 | Head | Farmer | Missouri |
| 77 | John Ryland Kirby | 40 | Son | Farmer | Missouri |
| 78 | Eleanor May Kirby | 54 | Sister | None | Missouri |
| 79 | William C. Priest | 37 | Head | Optician | California |
| 80 | Leah Priest | 28 | Wife | None | Missouri |
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)