WC
William Cox — 1940 US Census Record
Model Tree available1940 United States Federal Census · Marion-County, Indiana
Our Model Tree links this William Cox across the 1920, 1930 and 1940 US Censuses in Marion-County, Indiana (XGBoost, ~Confirmed), with identified parents John & John — first a son (b.~1912), then head of a 3-person household.
Age 28
b. ~1912
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Marion-County, Indiana |
| Surname | Cox |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Perry Twp |
| 1935 Residence (County) | Marion |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same house |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Perry Twp |
| Est. Birth Year | ~1912 |
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 William | Age | Birth yr |
|---|---|---|---|---|
| Willa Cox | Head | — | 62 | ~1878 |
| Ralph Cox | Son | — | 20 | ~1920 |
| William Cox | Son | — | 28 | ~1912 |
Census Appearances
1920
Marion, Indiana
Son, age 7
Marion, Indiana · implied b. ~1913 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cox |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Marion, Indiana
Son, age 18
Marion, Indiana · implied b. ~1912 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cox |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Marion-County, Indiana
Son, age 28
Marion-County, Indiana · implied b. ~1912 — 3 household members
| Surname | Cox |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Perry Twp |
| 1935 Residence (County) | Marion |
| Income (1939) | 0 |
| Highest Grade | 8 |
| 1935 Residence | Same house |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 William Cox across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Cox (~0.92 confidence) and father John Cox (~0.92 confidence) and mother Willa Cox (~0.92 confidence) and mother Stella Cox (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Cox
b. ~1868
Source father
● Household
· direct · ~0.92
Father
John Cox
b. ~1868
Source father
● Household
· direct · ~0.92
Mother
Willa Cox
b. ~1878
Source mother
● Household
· direct · ~0.92
Mother
Stella Cox
b. ~1878
Source mother
● Household
· direct · ~0.92
This person
Anchor record
William Cox
Son · 1940 · age 28 · b. ~1912 · Indiana
★ You are viewing this record
Sibling
Ralph Cox
Sibling · 1940 · age 20
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 — Marion-County, Indiana
Open full size
1940 US Federal Census — Marion-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01075-00810)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Harry Bahman | 45 | Head | — | Indiana |
| 2 | James Argan | 69 | Head | — | Indiana |
| 3 | Cora Argan | 64 | Wife | — | Indiana |
| 4 | Delbert Todd | 40 | Head | Assembler | Indiana |
| 5 | Alice Todd | 40 | Wife | — | Indiana |
| 6 | Marjorie Todd | 20 | Daughter | Stenographer | Indiana |
| 7 | Delbert Jr. Todd | 19 | Son | Sales Clerk | Indiana |
| 8 | Betty Todd | 14 | Daughter | — | Indiana |
| 9 | Thelma Todd | 8 | Daughter | — | Indiana |
| 10 | Harry Powell | 33 | Head | Buffer | W. Virginia |
| 11 | Gladys Powell | 32 | Wife | — | Kentucky |
| 12 | Barbara Jean Powell | 3 | Daughter | — | Indiana |
| 13 | Willa Cox | 62 | Head | — | Indiana |
| 14 | William Cox THIS PERSON | 28 | Son | — | Indiana |
| 15 | Ralph Cox | 20 | Son | Laborer | Indiana |
| 16 | Frank Ferguson | 38 | Head | Hot Mill | Indiana |
| 17 | Allie Ferguson | 39 | Wife | — | Kentucky |
| 18 | Frank Ferguson | 15 | Son | — | Indiana |
| 19 | Alvin Ferguson | 10 | Son | — | Indiana |
| 20 | Sarah Ferguson | 6 | Daughter | — | Indiana |
| 21 | James Ferguson | 3 | Son | — | Indiana |
| 22 | Rachael Mccart | 19 | Daughter | Servant | Kentucky |
| 23 | Ray Mabrey | 35 | Head | Laborer | Arkansas |
| 24 | Mabel Mabrey | 29 | Wife | — | Indiana |
| 25 | Wilma Mae Mabrey | 11 | Daughter | — | Indiana |
| 26 | Howard H. Haugh | 28 | Head | Laborer Member | Indiana |
| 27 | Ruby Haugh | 27 | Wife | — | Indiana |
| 28 | Fred J. Henneke | 59 | Head | Carpenter | Indiana |
| 29 | Maud V. Henneke | 51 | Wife | — | Kentucky |
| 30 | Harold Henneke | 20 | Son | Laborer | Indiana |
| 31 | Foreman L. Carter | 39 | Head | Shipping Clerk | Kentucky |
| 32 | Grace Carter | 39 | Wife | Seamstress | Mississippi |
| 33 | Saffell Carter | 21 | Son | — | Kentucky |
| 34 | Norman J. Carter | 18 | Son | Shipping | Kentucky |
| 35 | Richard Carter | 5 | Son | — | Indiana |
| 36 | William Criss | 72 | Head | — | Indiana |
| 37 | Mary Criss | 61 | Wife | — | Indiana |
| 38 | Gilbert Conner | 43 | Head | Truck Driver | Indiana |
| 39 | Lydia Conner | 45 | Wife | — | Indiana |
| 40 | Donald Conner | 13 | Son | — | Indiana |
Pedigree Summary
William + 1 sibling
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)