RN
Robert Nichols — 1940 US Census Record
Model Tree available1940 United States Federal Census · Sangamon-County, Illinois
Our Model Tree links this Robert Nichols across the 1920, 1930 and 1940 US Censuses in Sangamon-County, Illinois (XGBoost, ~Confirmed), with identified parents James & Myrtle — first a head (b.~1905), then head of a 7-person household.
Age 35
b. ~1905
Male
Head
Born: Tennessee
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Sangamon-County, Illinois |
| Surname | Nichols |
| Given Name | Robert |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Tennessee |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Hancock |
| Additional Details | |
| Occupation | laborer |
| Industry | WPA road construction |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 604 |
| Highest Grade | No 8 |
| 1935 Residence | Tennessee |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
| Occupation | Laborer |
| Township / Ward | Cooper Twp |
| Est. Birth Year | ~1905 |
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 Nichols | Head | — | 35 | ~1905 |
| Philip Nichols | Son | — | 4 | ~1936 |
| Dorothy Nichols | Spouse | — | 24 | ~1916 |
| Lawrence Nichols | Son | — | 6 | ~1934 |
| Carol Nichols | Daughter | — | 3 | ~1937 |
| Donald Nichols | Son | — | 1 | ~1939 |
| John Nichols | Son | — | 7 | ~1933 |
Census Appearances
1920
Sangamon, Illinois
Son, age 13
Sangamon, Illinois · implied b. ~1907 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nickols |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Tennessee |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
1930
Sangamon, Illinois
Head, age 24
Sangamon, Illinois · implied b. ~1906 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Nichols |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Tennessee |
| Age at First Marriage | 18 |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Occupation | Miller |
| Industry | Flour mill |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 8 |
| Radio Set | R |
| Veteran | No |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
1940
Sangamon-County, Illinois
Head, age 35
Sangamon-County, Illinois · implied b. ~1905 — 7 household members
| Surname | Nichols |
| Given Name | Robert |
| Relationship to Head | head |
| Sex | M |
| Color / Race | White |
| Age | 35 |
| Marital Status | Married |
| Birthplace | Tennessee |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Hancock |
| Occupation | laborer |
| Industry | WPA road construction |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 604 |
| Highest Grade | No 8 |
| 1935 Residence | Tennessee |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
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 Nichols across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Nickols (~0.92 confidence) and mother Myrtle Nickols (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Nickols
b. ~1868
Source father
● Household
· direct · ~0.92
Mother
Myrtle Nickols
b. ~1877
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Nichols
Head · 1940 · age 35 · b. ~1905 · 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 — Sangamon-County, Illinois
Open full size
1940 US Federal Census — Sangamon-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00887-00195)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Roberta Smith | 11 | daughter | — | Illinois |
| 42 | John Rodgers | 40 | lodger | Laborer | Washington |
| 43 | Jennie Walker | 70 | head | — | Illinois |
| 44 | J. D. Walker | 44 | son | — | Illinois |
| 45 | Origen Jett | 31 | head | Farmer | Illinois |
| 46 | Beulah Jett | 28 | wife | — | Illinois |
| 47 | Mary Jett | 6 | daughter | — | Illinois |
| 48 | Barbara Jett | 4 | daughter | — | Illinois |
| 49 | Belle Bennett | 34 | head | — | Kentucky |
| 50 | Loris Davis | 12 | lodger | — | Illinois |
| 51 | Henry Ginn | 60 | head | Carpenter | Illinois |
| 52 | Alice Ginn | 55 | wife | — | Illinois |
| 53 | Raymond Ginn | 23 | son | Cement Finisher | Dakota |
| 54 | Rose Ginn | 19 | daughter in law | — | Louisiana |
| 55 | Lynda Ginn | 1 | daughter | — | Illinois |
| 56 | Robert Nichols THIS PERSON | 35 | head | Laborer | Tennessee |
| 57 | Dorothy Nichols | 24 | wife | — | Illinois |
| 58 | John Robert Nichols | 7 | son | — | Illinois |
| 59 | Lawrence Ray Nichols | 6 | son | — | Illinois |
| 60 | Philip Leon Nichols | 4 | son | — | Illinois |
| 61 | Carol Jean Nichols | 3 | daughter | — | Illinois |
| 62 | Donald A. Nichols | 1 | son | — | Illinois |
| 63 | John Nave | 62 | head | — | Illinois |
| 64 | Nancy Nave | 59 | wife | — | Illinois |
| 65 | John M. Roth | 67 | head | — | Illinois |
| 66 | Mary Louisa Roth | 59 | wife | — | Kansas |
| 67 | Alva L. Roth | 34 | son | Laborer | Illinois |
| 68 | Albert Ely Roth | 26 | son | — | Illinois |
| 69 | John C. Roth | 20 | son | New Worker | Illinois |
| 70 | Luella Marie Roth | 17 | daughter | — | Illinois |
| 71 | Charles Richards | 25 | head | Mechanic | Illinois |
| 72 | Lana Richards | 29 | wife | — | Illinois |
| 73 | Norma Jean Richards | 2 | daughter | — | Illinois |
| 74 | Billy Richards | 19 | son | — | Illinois |
| 75 | Carl E. Richards | 4 | son | — | Illinois |
| 76 | Roy Anderson | 32 | head | Truck Driver | Illinois |
| 77 | Marly Anderson | 26 | wife | — | Illinois |
| 78 | Donald Leroy Anderson | 5 | son | — | Illinois |
| 79 | Paul Eugene Anderson | 1 | son | — | Illinois |
| 80 | Earl Ray Lansche | 20 | brother in law | Truck Driver | Illinois |
Pedigree Summary
Robert
Gen 1 · 2 parents
~0.92
Max depth 4 (1900–1950 window)
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)