RS
Robert Simmons — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Clay-County, Illinois
Our Model Tree links this Robert Simmons across the 1930 and 1940 US Censuses in Clay-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 11-person household.
Age 13
b. ~1927
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Clay-County, Illinois |
| Surname | Simmons |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Clay |
| Additional Details | |
| Highest Grade | 5 |
| 1935 Residence | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Pixley Township |
| Est. Birth Year | ~1927 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Marjorie Simmons | Daughter | — | 16 | ~1924 |
| Betty Simmons | Daughter | — | 5 | ~1935 |
| Chas Simmons | Head | — | 57 | ~1883 |
| Chas Simmons | Son | — | ~1940 | |
| Harold Simmons | Son | — | 13 | ~1927 |
| Robert Simmons | Son | — | 13 | ~1927 |
| Leroy Simmons | Son | — | 7 | ~1933 |
| Everett Simmons | Son | — | 9 | ~1931 |
| Ralph Simmons | Son | — | 11 | ~1929 |
| Noel Simmons | Son | — | 3 | ~1937 |
| Celia Simmons | Spouse | — | 38 | ~1902 |
Census Appearances
1930
Clay, Illinois
Son, age 3
Clay, Illinois · implied b. ~1927 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Simmons |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Clay-County, Illinois
Son, age 13
Clay-County, Illinois · implied b. ~1927 — 11 household members
| Surname | Simmons |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Clay |
| Highest Grade | 5 |
| 1935 Residence | Illinois |
| 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 Robert Simmons across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Simmons
Son · 1940 · age 13 · b. ~1927 · Illinois
★ You are viewing this record
Sibling
Leroy Simmons
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Noel Simmons
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Harold Simmons
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marjorie Simmons
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Everett Simmons
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Simmons
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Chas Simmons
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ralph Simmons
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Clay-County, Illinois
Open full size
1940 US Federal Census — Clay-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00769-00427)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Marie Johnson | 41 | Wife | — | Illinois |
| 42 | Russell Dean Johnson | 11 | Son | — | Illinois |
| 43 | Donald Leon Johnson | 8 | Son | — | Illinois |
| 44 | Lula Louise Johnson | 1 | Daughter | — | Illinois |
| 45 | John B. Hortenstine | 43 | Head | Farmer | Illinois |
| 46 | Margaret S. Hortenstine | 83 | Mother | — | Virginia |
| 47 | Nohris Q. Pickel | 44 | Head | Farmer | Illinois |
| 48 | Opal Pickel | 39 | Wife | — | Illinois |
| 49 | Juanita Pickel | 17 | Daughter | — | Illinois |
| 50 | Frances Pickel | 10 | Daughter | — | Illinois |
| 51 | Dwight S. Pickel | 25 | Head | Farm Laborer | Illinois |
| 52 | Neva Pickel | 18 | Wife | — | Illinois |
| 53 | Elzie V. Pickel | 12 | Son | — | Illinois |
| 54 | John T. Peavler | 49 | Head | W.P.A. Laborer | Illinois |
| 55 | Eva Peavler | 44 | Wife | — | Illinois |
| 56 | Paul Peavler | 18 | Son | C.C.C. Laborer | Illinois |
| 57 | Iloris Peavler | 15 | Daughter | — | Illinois |
| 58 | George D. Gabbart | 35 | Head | Farmer | Illinois |
| 59 | Agnes Gabbart | 26 | Wife | — | Illinois |
| 60 | Betty Lou Gabbart | 4 | Daughter | — | Illinois |
| 61 | Mary Catherine Gabbart | 2 | Daughter | — | Illinois |
| 62 | Anna Gabbart | 65 | Mother | — | Illinois |
| 63 | Chas. Simmons | 57 | Head | W.P.A. Laborer | Illinois |
| 64 | Celia Simmons | 38 | Wife | — | Illinois |
| 65 | Marjorie Simmons | 16 | Daughter | — | Illinois |
| 66 | Harold Simmons | 13 | Son | — | Illinois |
| 67 | Robert Simmons THIS PERSON | 13 | Son | — | Illinois |
| 68 | Ralph Simmons | 11 | Son | — | Illinois |
| 69 | Everett Leon Simmons | 9 | Son | — | Illinois |
| 70 | Leroy Simmons | 7 | Son | — | Illinois |
| 71 | Betty Jean Simmons | 5 | Daughter | — | Illinois |
| 72 | Noel Simmons | 3 | Son | — | Illinois |
| 73 | Chas. Edward Simmons | 0 | Son | — | Illinois |
| 74 | Clint D. Smith | 35 | Head | Farmer | Illinois |
| 75 | Emma Smith | 29 | Wife | — | Illinois |
| 76 | Herald Smith | 7 | Son | — | Illinois |
| 77 | W. H. Smith | 71 | Head | Farmer | Illinois |
| 78 | Ilora Smith | 69 | Wife | — | Indiana |
| 79 | Wm Cox | 26 | Hired Hand | Hired Hand | Illinois |
| 80 | Harvey E. Pierson | 37 | Head | Truck Driver | 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)