MJ
Mary Jenkins — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Douglas-County, Illinois
Our Model Tree links this Mary Jenkins across the 1920, 1930 and 1940 US Censuses in Douglas-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1858), then head of a 2-person household.
Age 82
b. ~1858
Female
Head
Born: Illinois
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Douglas-County, Illinois |
| Surname | Jenkins |
| Given Name | Mary |
| Relationship to Head | head |
| Sex | F |
| Color / Race | White |
| Age | 82 |
| Marital Status | Widowed |
| Birthplace | Illinois |
| 1935 Residence (City) | Tuscola City |
| 1935 Residence (County) | Douglas |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Tuscola City |
| Est. Birth Year | ~1858 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Mary | Age | Birth yr |
|---|---|---|---|---|
| Mary Jenkins | Head | — | 82 | ~1858 |
| John Jenkins | Son | — | 58 | ~1882 |
Census Appearances
1920
Douglas, Illinois
Head, age 61
Douglas, Illinois · implied b. ~1859 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jenkins |
| Given Name | Mary |
| Relationship to Head | Head |
| Sex | F |
| Color / Race | White |
| Age | 61 |
| Marital Status | Widowed |
| Birthplace | Illinois |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Ohio |
| Occupation | Laundress |
| Industry | At Home |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Douglas, Illinois
Other, age 71
Douglas, Illinois · implied b. ~1859 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Jenkins |
| Given Name | Mary |
| Relationship to Head | Head-H |
| Sex | F |
| Color / Race | White |
| Age | 71 |
| Marital Status | Widowed |
| Birthplace | Illinois |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 1000 |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Douglas-County, Illinois
Head, age 82
Douglas-County, Illinois · implied b. ~1858 — 2 household members
| Surname | Jenkins |
| Given Name | Mary |
| Relationship to Head | head |
| Sex | F |
| Color / Race | White |
| Age | 82 |
| Marital Status | Widowed |
| Birthplace | Illinois |
| 1935 Residence (City) | Tuscola City |
| 1935 Residence (County) | Douglas |
| Highest Grade | No 6 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Mary Jenkins across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Mary Jenkins
Head · 1940 · age 82 · b. ~1858 · 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 — Douglas-County, Illinois
Open full size
1940 US Federal Census — Douglas-County, Illinois
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-00795-00459)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mary Mckeown | 13 | daughter | — | Illinois |
| 42 | Rubenah Mckeown | 6 | daughter | — | Illinois |
| 44 | Mary Jenkins THIS PERSON | 82 | head | — | Illinois |
| 45 | John Jenkins | 58 | son | — | Illinois |
| 46 | Ray Bitner | 37 | head | Engineer | Indiana |
| 47 | Grace Bitner | 31 | wife | — | Illinois |
| 48 | James L. Bitner | 1 | son | — | Illinois |
| 49 | George Bauman | 59 | head | Dist Manager | Nebraska |
| 50 | Hazel Bauman | 49 | wife | — | Iowa |
| 51 | Minna Smith | 57 | head | — | Illinois |
| 52 | Kathryn Easter | 49 | head | — | Ohio |
| 53 | Lester E. Bedient | 38 | head | Bread Truck | Illinois |
| 54 | Alice C. Bedient | 34 | wife | — | Illinois |
| 55 | La Rue Bedient | 3 | daughter | — | Illinois |
| 56 | Harshal Prouit | 24 | head | Oiler | Illinois |
| 57 | Leticia Prouit | 25 | wife | — | Illinois |
| 58 | Lowell Prouit | 7 | son | — | Illinois |
| 59 | Vera Jane Prouit | 5 | daughter | — | Illinois |
| 60 | Herbert Pierce | 36 | head | Mechanic | Illinois |
| 61 | Wanda Rose Pierce | 13 | daughter | — | Illinois |
| 62 | Jack Pierce | 9 | son | — | Illinois |
| 63 | James R. Aler | 41 | head | Car Manufacture | Indiana |
| 64 | Edith Aler | 41 | wife | — | Indiana |
| 65 | Edwin Aler | 17 | son | — | Illinois |
| 66 | Georgiana Aler | 15 | daughter | — | Illinois |
| 67 | Grover Abney | 53 | head | Truck Driver | Kentucky |
| 68 | Sadie Abney | 50 | wife | — | Kentucky |
| 69 | Kenneth Baker | 30 | head | School Teacher | Illinois |
| 70 | Willa Baker | 29 | wife | School Teacher | Indiana |
| 71 | Wesley Gillespie | 26 | head | Barber | Indiana |
| 72 | Hazel Gillespie | 23 | wife | — | Illinois |
| 73 | Merle Gillespie | 3 | son | — | Illinois |
| 74 | Carole Gillespie | 2 | daughter | — | Illinois |
| 75 | Charles Woods | 30 | head | Proprietor | Illinois |
| 76 | Dorothy Woods | 26 | wife | — | Illinois |
| 77 | Hershel Simpson | 31 | head | Truck | Kentucky |
| 78 | Alta Simpson | 29 | wife | — | Illinois |
| 79 | Leatha Rae Simpson | 0 | daughter | — | 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)