RC
Robert Cox — 1940 US Census Record
Model Tree available1940 United States Federal Census · Brown-County, Illinois
Our Model Tree links this Robert Cox across the 1920, 1930 and 1940 US Censuses in Brown-County, Illinois (XGBoost, ~Confirmed), with identified parents Anna & Charles — first a son (b.~1900), then head of a 3-person household.
Age 40
b. ~1900
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Brown-County, Illinois |
| Surname | Cox |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Mt Sterling City |
| 1935 Residence (County) | Brown |
| Additional Details | |
| Occupation | Trucker |
| Industry | Own truck |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 1200 |
| Highest Grade | No 8 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Trucker |
| Township / Ward | Mt Sterling City |
| Est. Birth Year | ~1900 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Anna Cox | Head | — | 67 | ~1873 |
| Maria Cox | Other | — | 76 | ~1864 |
| Robert Cox | Son | — | 40 | ~1900 |
Census Appearances
1920
Brown, Illinois
Son, age 20
Brown, Illinois · implied b. ~1900 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cox |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Farm Labor |
| Industry | Home Farm |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Brown, Illinois
Son, age 30
Brown, Illinois · implied b. ~1900 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cox |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 30 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Laborer |
| Industry | Odd jobs |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Brown-County, Illinois
Son, age 40
Brown-County, Illinois · implied b. ~1900 — 3 household members
| Surname | Cox |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Mt Sterling City |
| 1935 Residence (County) | Brown |
| Occupation | Trucker |
| Industry | Own truck |
| Class of Worker | PW |
| Hours Worked | 45 |
| Income (1939) | 1200 |
| Highest Grade | No 8 |
| 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 Robert Cox across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Anna Cox (~0.92 confidence) and father Charles Cox (~0.92 confidence) and father Chas Cox (~0.92 confidence) and mother Anna Cox (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Anna Cox
b. ~1873
Source mother
● Household
· direct · ~0.92
Father
Charles Cox
b. ~1873
Source father
● Household
· direct · ~0.92
Father
Chas Cox
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Anna Cox
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Cox
Son · 1940 · age 40 · b. ~1900 · 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 — Brown-County, Illinois
Open full size
1940 US Federal Census — Brown-County, Illinois
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-00761-00131)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Mchatton | 50 | Head | Rock Mason | Illinois |
| 2 | Bertha Mchatton | 40 | Wife | — | Illinois |
| 3 | Mary Mchatton | 22 | Daughter | Tel. Operator | Illinois |
| 4 | Joseph Mchatton | 17 | Son | Clerk | Illinois |
| 5 | Marjorie Mchatton | 15 | Daughter | — | Illinois |
| 6 | William Mchatton | 11 | Son | — | Illinois |
| 7 | Thelma Jean Mchatton | 7 | Daughter | — | Illinois |
| 8 | Charles Francis Mchatton | 4 | Son | — | Illinois |
| 9 | Laura Ritchey | 29 | Head | — | Kentucky |
| 10 | James Six | 60 | Head | Farm Hand | Illinois |
| 11 | Nellie May Six | 53 | Wife | — | Illinois |
| 12 | Robert Kerr | 62 | Head | Patrolman | Illinois |
| 13 | Mary Kerr | 56 | Wife | — | Illinois |
| 14 | Orville Rutledge | 57 | Head | Electrician | Illinois |
| 15 | Lucia Rutledge | 57 | Wife | — | Michigan |
| 16 | John T. Lawless | 39 | Head | Lawyer | Illinois |
| 17 | Blanche Lawless | 37 | Wife | — | Illinois |
| 18 | Carolyn Lawless | 4 | Daughter | — | Illinois |
| 19 | Grace Meyer | 48 | Head | Proprietor | Illinois |
| 20 | Francis Meyer | 28 | Son-in-law | Linotype Opr | Illinois |
| 21 | Priscilla Meyer | 27 | Daughter | Clerk | Illinois |
| 22 | Clem Thompson | 25 | Head | Teacher | Illinois |
| 23 | Darlene Thompson | 21 | Wife | — | Illinois |
| 24 | Frank D. Meyer | 70 | Head | Proprietor | Illinois |
| 25 | Hattie Meyer | 64 | Wife | — | Illinois |
| 26 | Richard T. Crane | 35 | Head | Principal | Illinois |
| 27 | Mayta Crane | 29 | Wife | — | Illinois |
| 28 | Richard T. Crane | 4 | Son | — | Illinois |
| 29 | Anna Cox | 67 | Head | — | Illinois |
| 30 | Robert Cox THIS PERSON | 40 | Son | Trucker | Illinois |
| 31 | Maria Cox | 76 | Sister | — | Illinois |
| 32 | Charles B. Craven | 75 | Head | Proprietor | Illinois |
| 33 | John L. Cronin | 53 | Head | Maintenance | Illinois |
| 34 | J. P. Gleason | 39 | Roomer | Truck Driver | Illinois |
| 35 | George C. O'Neil | 62 | Head | Proprietor | Illinois |
| 36 | Beulah O'Neil | 61 | Wife | — | Illinois |
| 37 | Thomas Mccabe | 67 | Head | Burying Ground | Illinois |
| 38 | Louis Hagey | 39 | Head | Bartender | Illinois |
Pedigree Summary
Robert
Gen 1 · 4 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)