JC
James Cowan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Knox-County, Tennessee
Our Model Tree links this James Cowan across the 1930 and 1940 US Censuses in Knox-County, Tennessee (XGBoost, ~Confirmed) — first a son (b.~1921), then head of a 5-person household.
Age 19
b. ~1921
Male
Son
Born: Tennessee
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Knox-County, Tennessee |
| Surname | Cowan |
| Given Name | James D |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Tennessee |
| 1935 Residence (City) | 8th Civil District |
| Additional Details | |
| Highest Grade | Hs 4 |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
| Township / Ward | 8Th Civil District |
| Est. Birth Year | ~1921 |
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 James | Age | Birth yr |
|---|---|---|---|---|
| Palmer Cowan | Son | — | 17 | ~1923 |
| James Cowan | Son | — | 19 | ~1921 |
| Palmer Cowan | Head | — | 47 | ~1893 |
| Melba Cowan | Spouse | — | 47 | ~1893 |
| Melvin Cowan | Son | — | 16 | ~1924 |
Census Appearances
1930
Knox, Tennessee
Other, age 9
Knox, Tennessee · implied b. ~1921 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cowan |
| Given Name | James |
| Relationship to Head | Step-son |
| Sex | M |
| Color / Race | Black |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Tennessee |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
1940
Knox-County, Tennessee
Son, age 19
Knox-County, Tennessee · implied b. ~1921 — 5 household members
| Surname | Cowan |
| Given Name | James D |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Tennessee |
| 1935 Residence (City) | 8th Civil District |
| Highest Grade | Hs 4 |
| 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 James Cowan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Cowan
Son · 1940 · age 19 · b. ~1921 · Tennessee
★ You are viewing this record
Sibling
Melvin Cowan
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Palmer Cowan
Sibling · 1940 · age 17
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 — Knox-County, Tennessee
Open full size
1940 US Federal Census — Knox-County, Tennessee
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03910-00013)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Katherine W Butt | 15 | Daughter | — | Tennessee |
| 2 | Riley S Butt | 12 | Son | — | Tennessee |
| 3 | Betty J Butt | 9 | Daughter | — | Tennessee |
| 4 | Jack K Butt | 7 | Son | — | Tennessee |
| 5 | Harold C Butt | 5 | Son | — | Tennessee |
| 6 | Sidney S Butt | 2 | Daughter | — | Tennessee |
| 7 | Carl F Yarnell | 34 | Head | Painter | Tennessee |
| 8 | Bessie S Yarnell | 29 | Wife | — | Tennessee |
| 9 | Carl F Yarnell | 13 | Son | — | Tennessee |
| 10 | James G Yarnell | 11 | Son | — | Tennessee |
| 11 | Daniel D Yarnell | 10 | Son | — | Tennessee |
| 12 | Kenneth A Yarnell | 9 | Son | — | Tennessee |
| 13 | Margurette L Yarnell | 2 | Daughter | — | Tennessee |
| 14 | Francis A Yarnell | 0 | Daughter | — | Tennessee |
| 15 | Garfield H Hatcher | 57 | Head | Farm Laborer | Tennessee |
| 16 | Della L Hatcher | 57 | Wife | Housewife | Tennessee |
| 17 | Elmon A Hatcher | 35 | Son | Farm Laborer | Tennessee |
| 18 | Lena O Hatcher | 28 | Daughter | — | Tennessee |
| 19 | Lola E Hatcher | 20 | Daughter | — | Tennessee |
| 20 | Palmer D Cowan | 47 | Head | Line Foreman | Tennessee |
| 21 | Melba M Cowan | 47 | Wife | — | Tennessee |
| 22 | James D Cowan THIS PERSON | 19 | Son | — | Tennessee |
| 23 | Palmer D Jr Cowan | 17 | Son | — | Tennessee |
| 24 | Melvin S Cowan | 16 | Son | — | Tennessee |
| 25 | Charles A Weeks | 56 | Head | — | Tennessee |
| 26 | Gertrude A Weeks | 33 | Wife | — | Tennessee |
| 27 | Bessie T Burns | 11 | Step Daughter | — | Tennessee |
| 28 | Helen G Warwick | 36 | Head | Spinner | West Virginia |
| 29 | John A Warwick | 15 | Son | — | West Virginia |
| 30 | Raymond R Warwick | 5 | Son | — | West Virginia |
| 31 | Luther A Warwick | 2 | Son | — | Tennessee |
| 32 | Ernest W Warwick | 52 | Brother-in-law | Farm Laborer | Tennessee |
| 33 | L Herman Warwick | 44 | Head | Killer Tender | Tennessee |
| 34 | L Herman Jr Warwick | 10 | Son | — | Tennessee |
| 35 | William Warwick | 7 | Son | — | Tennessee |
| 36 | Nattie M Branch | 53 | Head | Housekeeper | Tennessee |
| 37 | Clarence Z Branch | 33 | Son | Lumber Stacker | Tennessee |
| 38 | Burnette J Branch | 27 | Daughter | — | Tennessee |
| 39 | Hela H Branch | 13 | Daughter | — | Tennessee |
| 40 | Harold C Branch | 2 | Grand Son | — | Tennessee |
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)