JU
James Underwood — 1940 US Census Record
Model Tree available1940 United States Federal Census · Clay-County, Indiana
Our Model Tree links this James Underwood across the 1920, 1930 and 1940 US Censuses in Clay-County, Indiana (XGBoost, ~Confirmed), with identified parents Peter & Peter — first a son (b.~1917), then head of a 5-person household.
Age 23
b. ~1917
Male
Son
Born: Indiana
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Clay-County, Indiana |
| Surname | Underwood |
| Given Name | James A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Jackson twp. |
| 1935 Residence (County) | Clay |
| Additional Details | |
| Occupation | laborer |
| Industry | General |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 500 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Laborer |
| Township / Ward | Jackson Twp |
| Est. Birth Year | ~1917 |
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 |
|---|---|---|---|---|
| Eugene Underwood | Son | — | 16 | ~1924 |
| Peter Underwood | Head | — | 57 | ~1883 |
| Joe Underwood | Son | — | 13 | ~1927 |
| James Underwood | Son | — | 23 | ~1917 |
| Mary Underwood | Spouse | — | 51 | ~1889 |
Census Appearances
1920
Clay, Indiana
Son, age 3
Clay, Indiana · implied b. ~1917 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Underwood |
| Given Name | James A |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Clay, Indiana
Son, age 13
Clay, Indiana · implied b. ~1917 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Underwood |
| Given Name | James |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Clay-County, Indiana
Son, age 23
Clay-County, Indiana · implied b. ~1917 — 5 household members
| Surname | Underwood |
| Given Name | James A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Indiana |
| 1935 Residence (City) | Jackson twp. |
| 1935 Residence (County) | Clay |
| Occupation | laborer |
| Industry | General |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 500 |
| Highest Grade | H-4 |
| 1935 Residence | Same place |
| 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 Underwood across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Peter Underwood (~0.92 confidence) and father Peter Underwood (~0.92 confidence) and mother Mary Underwood (~0.92 confidence) and mother Mary Underwood (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Peter Underwood
b. ~1888
Source father
● Household
· direct · ~0.92
Father
Peter Underwood
b. ~1883
Source father
● Household
· direct · ~0.92
Mother
Mary Underwood
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Mary Underwood
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Underwood
Son · 1940 · age 23 · b. ~1917 · Indiana
★ You are viewing this record
Sibling
Joe Underwood
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eugene Underwood
Sibling · 1940 · age 16
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 — Clay-County, Indiana
Open full size
1940 US Federal Census — Clay-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01032-00422)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Warren J. Bell | 1 | Son | — | Indiana |
| 2 | Charlie C. Miller | 60 | Head | Laborer | Missouri |
| 3 | Elsie J. Miller | 53 | Wife | — | Missouri |
| 4 | Herbert D. Miller | 22 | Son | Truck Helper | Missouri |
| 5 | Charles E. Miller | 17 | Son | New Worker | Missouri |
| 6 | Wallace O. Miller | 14 | Son | — | Indiana |
| 7 | William H. Garrison | 36 | Head | Laborer | Iowa |
| 8 | Shonetta E. Garrison | 34 | Wife | — | Indiana |
| 9 | Mary J. Garrison | 12 | Daughter | — | Indiana |
| 10 | Joann Garrison | 10 | Daughter | — | Indiana |
| 11 | Pearl N. Garrison | 8 | Daughter | — | Indiana |
| 12 | Linnetta E. Garrison | 6 | Daughter | — | Indiana |
| 13 | Robert R. Davis | 30 | Head | Truck Driver | Indiana |
| 14 | Wilda A. Davis | 75 | Mother | — | Indiana |
| 15 | Frank H. Garrison | 31 | Head | Laborer | Indiana |
| 16 | Gladys L. Garrison | 31 | Wife | — | Indiana |
| 17 | Doris L. Garrison | 11 | Daughter | — | Indiana |
| 18 | Harold F. Garrison | 7 | Son | — | Indiana |
| 19 | Anna M. Garrison | 5 | Daughter | — | Indiana |
| 20 | Daniel W. Fisher | 69 | Head | Laborer | Indiana |
| 21 | Myrtle E. Fisher | 59 | Wife | — | Indiana |
| 22 | Curtis W. Fisher | 14 | Son | — | Indiana |
| 23 | Robert L. Scharf | 37 | Head | Partner | Indiana |
| 24 | Mabel H. Scharf | 33 | Wife | — | Indiana |
| 25 | Gale R. Scharf | 9 | Son | — | Indiana |
| 26 | William E. Scharf | 5 | Son | — | Indiana |
| 27 | Jane A. Scharf | 1 | Daughter | — | Indiana |
| 28 | Katherine Blair | 55 | Head | — | Indiana |
| 29 | George Blair | 51 | Brother | — | Indiana |
| 30 | Alexander Blair | 39 | Brother | — | Indiana |
| 31 | Frank Hornshell | 78 | Uncle | — | Ohio |
| 32 | Elmo Ehrlich | 43 | Head | Supervisor | Indiana |
| 33 | Helen E. Ehrlich | 43 | Wife | — | Indiana |
| 34 | Ned Ehrlich | 10 | Son | — | Indiana |
| 35 | Peter R. Underwood | 57 | Head | Laborer | Indiana |
| 36 | Mary F. Underwood | 51 | Wife | — | Indiana |
| 37 | James A. Underwood THIS PERSON | 23 | Son | Laborer | Indiana |
| 38 | Eugene L. Underwood | 16 | Son | — | Indiana |
| 39 | Joe D. Underwood | 13 | Son | — | Indiana |
| 40 | Oscar Miller | 52 | Head | Teamster | Indiana |
Pedigree Summary
James + 2 siblings
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)