JW
James Warren — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Martin-County, Indiana
Our Model Tree links this James Warren across the 1930 and 1940 US Censuses in Martin-County, Indiana (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 9-person household.
Age 15
b. ~1925
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Martin-County, Indiana |
| Surname | Warren |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Center Twp |
| 1935 Residence (County) | Martin |
| Additional Details | |
| Highest Grade | Hs 8 |
| 1935 Residence | Same House |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Center Twp |
| Est. Birth Year | ~1925 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Patricia Warren | Daughter | — | 9 | ~1931 |
| Leora Warren | Daughter | — | 17 | ~1923 |
| Marshall Warren | Head | — | 42 | ~1898 |
| Richard Warren | Son | — | 19 | ~1921 |
| James Warren | Son | — | 15 | ~1925 |
| Max Warren | Son | — | 6 | ~1934 |
| Ronald Warren | Son | — | 20 | ~1920 |
| George Warren | Son | — | 5 | ~1935 |
| Mary Warren | Spouse | — | 39 | ~1901 |
Census Appearances
1930
Martin, Indiana
Son, age 5
Martin, Indiana · implied b. ~1925 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Warren |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Martin-County, Indiana
Son, age 15
Martin-County, Indiana · implied b. ~1925 — 9 household members
| Surname | Warren |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Center Twp |
| 1935 Residence (County) | Martin |
| Highest Grade | Hs 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 James Warren across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
James Warren
Son · 1940 · age 15 · b. ~1925 · Indiana
★ You are viewing this record
Sibling
Patricia Warren
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Richard Warren
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ronald Warren
Sibling · 1940 · age 20
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Max Warren
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Leora Warren
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
George Warren
Sibling · 1940 · age 5
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 — Martin-County, Indiana
Open full size
1940 US Federal Census — Martin-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01077-00806)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Richard Davis | 12 | Son | — | Indiana |
| 2 | James Davis | 10 | Son | — | Indiana |
| 3 | Matilda Davis | 68 | Mother | — | Indiana |
| 4 | Lawrence Willon | 29 | Head | Road Laborer | Indiana |
| 5 | Barbara Willon | 27 | Wife | — | Indiana |
| 6 | Junior Willon | 6 | Son | — | Indiana |
| 7 | Jack Willon | 5 | Son | — | Indiana |
| 8 | James Willon | 3 | Son | — | Indiana |
| 9 | Barbara Jean Willon | 1 | Daughter | — | Indiana |
| 10 | Albert Carrico | 42 | Head | Farm Manager | Indiana |
| 11 | Clara V Carrico | 44 | Wife | — | Indiana |
| 12 | Emil H Carrico | 15 | Son | — | Indiana |
| 13 | Gleda Carrico | 13 | Daughter | — | Indiana |
| 14 | Agnes Carrico | 11 | Daughter | — | Indiana |
| 15 | Albert G Carrico | 8 | Son | — | Indiana |
| 16 | Pearl Carrico | 6 | Daughter | — | Indiana |
| 17 | Reid Lane | 45 | Head | Farm Laborer | Indiana |
| 18 | Agnes Lane | 41 | Wife | — | Indiana |
| 19 | Ruth Lane | 20 | Daughter | — | Indiana |
| 20 | Lulu Lane | 16 | Daughter | — | Indiana |
| 21 | Ellen Lane | 14 | Daughter | — | Indiana |
| 22 | Ernie Lane | 10 | Daughter | — | Indiana |
| 23 | Delmar Lane | 7 | Son | — | Indiana |
| 24 | Jean Lane | 5 | Daughter | — | Indiana |
| 25 | Louella Lane | 4 | Daughter | — | Indiana |
| 26 | Ora Lawyer | 39 | Head | Farmer | Indiana |
| 27 | Esther Lawyer | 37 | Wife | — | Indiana |
| 28 | Leota Ann Lawyer | 10 | Daughter | — | Indiana |
| 29 | Adah Jane Lawyer | 9 | Daughter | — | Indiana |
| 30 | Richard L Lawyer | 7 | Son | — | Indiana |
| 31 | Everett Padgett | 13 | Brother | — | Indiana |
| 32 | Marshall J Warren | 42 | Head | Farm Operator | Illinois |
| 33 | Mary Warren | 39 | Wife | — | Indiana |
| 34 | Ronald Warren | 20 | Son | Electrical Wiring | Indiana |
| 35 | Richard Warren | 19 | Son | Farm Laborer | Indiana |
| 36 | Leora Warren | 17 | Daughter | — | Indiana |
| 37 | James Warren THIS PERSON | 15 | Son | — | Indiana |
| 38 | Patricia Warren | 9 | Daughter | — | Indiana |
| 39 | Max Warren | 6 | Son | — | Indiana |
| 40 | George Warren | 5 | Son | — | Indiana |
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)