JJ
John Jenkins — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lee-County, Illinois
Our Model Tree links this John Jenkins across the 1930 and 1940 US Censuses in Lee-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1901), then head of a 11-person household.
Age 39
b. ~1901
Male
Head
Born: Missouri
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Lee-County, Illinois |
| Surname | Jenkins |
| Given Name | John E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | Mendota |
| 1935 Residence (County) | LaSalle |
| Additional Details | |
| Occupation | Laborer |
| Industry | C.M.W. Railroad |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 665 |
| Highest Grade | No 7 |
| 1935 Residence | Illinois |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
| Occupation | Laborer |
| Township / Ward | Dixon |
| Est. Birth Year | ~1901 |
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.
11 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Evelyn Jenkins | Daughter | — | 4 | ~1936 |
| Mary Jenkins | Daughter | — | 14 | ~1926 |
| Patsy Jenkins | Daughter | — | 2 | ~1938 |
| Juanita Jenkins | Daughter | — | 10 | ~1930 |
| Lavone Jenkins | Daughter | — | 9 | ~1931 |
| Joyce Jenkins | Daughter | — | 1 | ~1939 |
| John Jenkins | Head | — | 39 | ~1901 |
| Mary Jenkins | Other | — | 75 | ~1865 |
| John Jenkins | Son | — | 12 | ~1928 |
| Richard Jenkins | Son | — | 7 | ~1933 |
| Mary Jenkins | Spouse | — | 32 | ~1908 |
Census Appearances
1930
Lee, Illinois
Head, age 28
Lee, Illinois · implied b. ~1902 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jenkins |
| Given Name | John E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Missouri |
| Age at First Marriage | 23 |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Kentucky |
| Occupation | Laborer |
| Industry | Poultry House |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | No |
| Home Value / Rent | R |
| Radio Set | 15. |
| Birth State | Missouri |
| Birth Country | United States |
| Birthplace (normalized) | missouri |
1940
Lee-County, Illinois
Head, age 39
Lee-County, Illinois · implied b. ~1901 — 11 household members
| Surname | Jenkins |
| Given Name | John E. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Missouri |
| 1935 Residence (City) | Mendota |
| 1935 Residence (County) | LaSalle |
| Occupation | Laborer |
| Industry | C.M.W. Railroad |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 665 |
| Highest Grade | No 7 |
| 1935 Residence | Illinois |
| 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 Jenkins across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
John Jenkins
Head · 1940 · age 39 · b. ~1901 · Illinois
★ 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 — Lee-County, Illinois
Open full size
1940 US Federal Census — Lee-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00836-00373)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Theron Pershall | 47 | Head | Transfer Line | Iowa |
| 42 | Hattie Pershall | 43 | Wife | — | Illinois |
| 43 | Dr. Charles Burd | 38 | Head | Chiropractor | Illinois |
| 44 | Bernice Burd | 31 | Wife | — | Indiana |
| 45 | Arlene Burd | 13 | Daughter | — | Illinois |
| 46 | Emma Huggett | 66 | Head | — | Illinois |
| 47 | John Huggett | 32 | Son | Retail Clerk | Illinois |
| 48 | John E. Jenkins THIS PERSON | 39 | Head | Laborer | Missouri |
| 49 | Mary Jenkins | 32 | Wife | — | Indiana |
| 50 | Mary Jenkins | 14 | Daughter | — | Illinois |
| 51 | John Jenkins | 12 | Son | — | Illinois |
| 52 | Juanita Jenkins | 10 | Daughter | — | Illinois |
| 53 | Lavone Jenkins | 9 | Daughter | — | Illinois |
| 54 | Richard Jenkins | 7 | Son | — | Illinois |
| 55 | Evelyn Jenkins | 4 | Daughter | — | Illinois |
| 56 | Patsy Jenkins | 2 | Daughter | — | Illinois |
| 57 | Joyce Jenkins | 1 | Daughter | — | Illinois |
| 58 | Mary Jenkins | 75 | Mother | — | Missouri |
| 59 | Thos. J. Griffin | 38 | Head | Laborer | Illinois |
| 60 | Helen Griffin | 35 | Wife | — | Illinois |
| 61 | Robert Griffin | 16 | Son | — | Illinois |
| 62 | Thomas Griffin | 10 | Son | — | Illinois |
| 63 | Virgil Griffin | 8 | Son | — | Illinois |
| 64 | Ruby Marie Griffin | 4 | Daughter | — | Illinois |
| 65 | Loren Higgins | 39 | Head | Bartender | Illinois |
| 66 | Gilma Higgins | 35 | Wife | — | Iowa |
| 67 | Wade H. Hawks | 60 | Head | Truck Driver | Illinois |
| 68 | Kathryn Hawks | 46 | Wife | — | Illinois |
| 69 | Dorothy Hawks | 14 | Daughter | — | Illinois |
| 70 | Kathryn Hawks | 12 | Daughter | — | Illinois |
| 71 | Robert Hawks | 8 | Son | — | Illinois |
| 72 | Ola Cannon | 36 | Head | Sales Lady | Illinois |
| 73 | Bryan Cannon | 11 | Son | — | Illinois |
| 74 | Seaman | 63 | Mother | — | Illinois |
| 75 | William J. Spier | 42 | Head | Farm Labor | Illinois |
| 76 | Olive S. Spier | 43 | Wife | Teacher | Illinois |
| 77 | Ida Nulubicum | 72 | Partner | — | Illinois |
| 78 | Robert R. Anderson | 52 | Head | Salesman | Illinois |
| 79 | Florence Anderson | 35 | Wife | — | Illinois |
| 80 | Ruby Mcintyre | 58 | Head | Janitor | Illinois |
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)