AC
Anna Cox — 1940 US Census Record
Model Tree available1940 United States Federal Census · Morgan-County, Illinois
Our Model Tree links this Anna Cox across the 1920, 1930 and 1940 US Censuses in Morgan-County, Illinois (XGBoost, ~Confirmed), with identified parents Edward & Edward — first a daughter (b.~1920), then head of a 5-person household.
Age 20
b. ~1920
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Morgan-County, Illinois |
| Surname | Cox |
| Given Name | Anna Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | South Jacksonville |
| 1935 Residence (County) | Morgan |
| Additional Details | |
| Occupation | Stenographer (New worker) |
| Industry | W.P.A. Office |
| Class of Worker | GW |
| Highest Grade | C 1 |
| 1935 Residence | Same house |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Stenographer |
| Township / Ward | South Jacksonville |
| Est. Birth Year | ~1920 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Anna | Age | Birth yr |
|---|---|---|---|---|
| Edward Cox | Son | — | 21 | ~1919 |
| Mary Cox | Daughter | — | 15 | ~1925 |
| Edward Cox | Head | — | 52 | ~1888 |
| Anna Cox | Daughter | — | 20 | ~1920 |
| Nellie Cox | Spouse | — | 49 | ~1891 |
Census Appearances
1920
Morgan, Illinois
Daughter, age
Morgan, Illinois · implied b. ~1920 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cox |
| Given Name | Anna Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| 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 |
1930
Morgan, Illinois
Daughter, age 10
Morgan, Illinois · implied b. ~1920 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cox |
| Given Name | Anna |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Morgan-County, Illinois
Daughter, age 20
Morgan-County, Illinois · implied b. ~1920 — 5 household members
| Surname | Cox |
| Given Name | Anna Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | South Jacksonville |
| 1935 Residence (County) | Morgan |
| Occupation | Stenographer (New worker) |
| Industry | W.P.A. Office |
| Class of Worker | GW |
| Highest Grade | C 1 |
| 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 Anna Cox across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Edward Cox (~0.92 confidence) and father Edward Cox (~0.92 confidence) and father Edward Cox (~0.92 confidence) and mother Nellie Cox (~0.92 confidence) and mother Nellie Cox (~0.92 confidence) and mother Nellie Cox (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Edward Cox
b. ~1886
Source father
● Household
· direct · ~0.92
Father
Edward Cox
b. ~1896
Source father
● Household
· direct · ~0.92
Father
Edward Cox
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Nellie Cox
b. ~1891
Source mother
● Household
· direct · ~0.92
Mother
Nellie Cox
b. ~1893
Source mother
● Household
· direct · ~0.92
Mother
Nellie Cox
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Anna Cox
Daughter · 1940 · age 20 · b. ~1920 · Illinois
★ You are viewing this record
Sibling
Mary Cox
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Cox
Sibling · 1940 · age 21
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 — Morgan-County, Illinois
Open full size
1940 US Federal Census — Morgan-County, Illinois
Page Contents
39 people indexed on this census page (nara:1940:m-t0627-00861-00689)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Mildred Anderson | 27 | Wife | Attendant | Illinois |
| 42 | Linda Kay Anderson | 1 | Daughter | — | Illinois |
| 43 | Nellie Gray | 46 | Servant | Maid | Illinois |
| 44 | Edward L. Cox | 52 | Head | Stationary Fireman | Illinois |
| 45 | Nellie S. Cox | 49 | Wife | — | Illinois |
| 46 | Edward J. Cox | 21 | Son | Substitute Postal Clerk | Illinois |
| 47 | Anna Margaret Cox THIS PERSON | 20 | Daughter | Stenographer (New Worker) | Illinois |
| 48 | Mary Catherine Cox | 15 | Daughter | — | Illinois |
| 49 | William H. Barrows | 71 | Head | Retired Farmer | Illinois |
| 50 | Jennie Barrows | 68 | Wife | — | Illinois |
| 51 | Irvin D. Patterson | 71 | Head | Retired Farmer | Illinois |
| 52 | Florence Patterson | 64 | Wife | — | Illinois |
| 53 | James E. Lair | 59 | Head | Carpenter | Kentucky |
| 54 | Lillie P. Lair | 57 | Wife | — | Kentucky |
| 55 | Earnest Lair | 34 | Son | Auditor | Illinois |
| 56 | Rosella Sheppard | 48 | Head | Saleslady | Illinois |
| 57 | Henry Kehl | 85 | Father | — | Germany |
| 58 | Roy E. Clifton | 46 | Head | Postal Clerk | Illinois |
| 59 | Caroline Clifton | 47 | Wife | — | Iowa |
| 60 | Carol Clifton | 12 | Son | — | Illinois |
| 61 | Ada Harvey | 74 | Aunt | — | Illinois |
| 63 | Eliza S. Hopper | 81 | Head | — | Illinois |
| 64 | Earnest Hopper | 51 | Son | Laborer Farmer | Illinois |
| 65 | Ora Hopper | 32 | Son | Laborer | Illinois |
| 66 | Fred Britenwiser | 74 | Brother | — | Illinois |
| 67 | Emma S. Cox | 57 | Head | — | Illinois |
| 68 | Wendell Cox | 25 | Son | — | Illinois |
| 69 | Howard Cox | 21 | Son | — | Illinois |
| 70 | William Young | 48 | Head | Mail Carrier | Illinois |
| 71 | Ruby Young | 40 | Wife | — | Illinois |
| 72 | Charles A. Anders | 45 | Head | Laborer | Illinois |
| 73 | Leona Anders | 35 | Wife | Telephone Operator | Illinois |
| 74 | Catherine Anders | 12 | Daughter | — | Illinois |
| 75 | Roy Oster | 35 | Head | Machine Operator | Missouri |
| 76 | Edith Oster | 26 | Wife | — | Illinois |
| 77 | James K. Oster | 6 | Son | — | Illinois |
| 78 | Joyce Oster | 4 | Daughter | — | Illinois |
| 79 | Barbara Jean Oster | 3 | Daughter | — | Illinois |
| 80 | John Lieberman | 59 | Head | Painter & Carpenter | Kansas |
Related Census Records
Pedigree Summary
Anna + 2 siblings
Gen 1 · 6 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)