RS
Robert Summers — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Piatt-County, Illinois
Our Model Tree links this Robert Summers across the 1930 and 1940 US Censuses in Piatt-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1917), then head of a 7-person household.
Age 23
b. ~1917
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Piatt-County, Illinois |
| Surname | Summers |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Monticello T. |
| 1935 Residence (County) | Piatt |
| Additional Details | |
| Occupation | Laborer |
| Industry | Glass Fact. |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 600 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Laborer |
| Township / Ward | Monticello T |
| Est. Birth Year | ~1917 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Summers | Son | — | 23 | ~1917 |
| Chester Summers | Son | — | 21 | ~1919 |
| Elbert Summers | Son | — | 27 | ~1913 |
| Francis Summers | Spouse | — | 46 | ~1894 |
| Marguerite Summers | Daughter | — | 15 | ~1925 |
| George Summers | Son | — | 25 | ~1915 |
| Jess Summers | Head | — | 53 | ~1887 |
Census Appearances
1930
Piatt, Illinois
Other, age 14
Piatt, Illinois · implied b. ~1916 — 25 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Sumner |
| Given Name | Robert |
| Relationship to Head | Grandson |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Piatt-County, Illinois
Son, age 23
Piatt-County, Illinois · implied b. ~1917 — 7 household members
| Surname | Summers |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Monticello T. |
| 1935 Residence (County) | Piatt |
| Occupation | Laborer |
| Industry | Glass Fact. |
| Class of Worker | PW |
| Hours Worked | 30 |
| Income (1939) | 600 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| 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 Summers across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Summers
Son · 1940 · age 23 · b. ~1917 · Illinois
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Sibling
George Summers
Sibling · 1940 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Chester Summers
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marguerite Summers
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elbert Summers
Sibling · 1940 · age 27
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 — Piatt-County, Illinois
Open full size
1940 US Federal Census — Piatt-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00867-00287)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Vena Wheeler | 54 | Wife | — | Illinois |
| 2 | Marguerite Wheeler | 16 | Daughter | Cleaning | Illinois |
| 3 | William Jess Wheeler | 13 | Son | — | Illinois |
| 4 | Jess Summers | 53 | Head | Cleaning | Illinois |
| 5 | Francis Summers | 46 | Wife | — | Illinois |
| 6 | Elbert Summers | 27 | Son | Laborer | Illinois |
| 7 | George Summers | 25 | Son | Laborer | Illinois |
| 8 | Robert Summers THIS PERSON | 23 | Son | Laborer | Illinois |
| 9 | Chester Summers | 21 | Son | Laborer | Illinois |
| 10 | Marguerite Summers | 15 | Daughter | — | Kentucky |
| 11 | Dan Brais | 21 | Head | Farming | Missouri |
| 12 | Caroline Brais | 20 | Wife | — | Illinois |
| 13 | Ruth Brais | 33 | Daughter | — | Illinois |
| 14 | Walter Byron | 35 | Son-in-law | Laborer | Illinois |
| 15 | Brock Trimble | 35 | Head | Laborer | Kentucky |
| 16 | Pearl Trimble | 32 | Wife | — | Kentucky |
| 17 | Billy Trimble | 11 | Son | — | Kentucky |
| 18 | Bobby Trimble | 8 | Son | — | Illinois |
| 19 | Donald Trimble | 2 | Son | — | Illinois |
| 20 | Thomas Anderson | 64 | Head | Farming | Illinois |
| 21 | Elizabeth Anderson | 61 | Wife | — | Illinois |
| 22 | Mary Anderson | 27 | Daughter | — | Illinois |
| 23 | Paul Downey | 27 | Head | Farming | Illinois |
| 24 | Freda Downey | 23 | Wife | — | Illinois |
| 25 | Bert Downey | 45 | Head | Soil Conserv. | Illinois |
| 26 | Arthesa Downey | 44 | Wife | — | Illinois |
| 27 | Shelton H. Downey | 20 | Son | Farming | Illinois |
| 28 | Betty Downey | 19 | Daughter | — | Illinois |
| 29 | Jerry H. Downey | 2 | Son | — | Illinois |
| 30 | Fred Thompson | 32 | Hired Hand | Laborer | Illinois |
| 31 | Elmer Sheridan | 47 | Head | Laborer | Kentucky |
| 32 | Anna Sheridan | 42 | Wife | — | Illinois |
| 33 | Mary Sheridan | 12 | Daughter | — | Illinois |
| 34 | James Jr. Sheridan | 15 | Son | — | Illinois |
| 35 | Jean Sheridan | 14 | Son | — | Illinois |
| 36 | Lynn Sheridan | 12 | Son | — | Illinois |
| 37 | Raymond Sheridan | 11 | Son | — | Illinois |
| 38 | Ralph Sheridan | 9 | Son | — | Illinois |
| 39 | Wayne Sheridan | 5 | Son | — | Illinois |
| 40 | Shirley Sheridan | 3 | 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)