JC
James Costello — 1940 US Census Record
Model Tree available1940 United States Federal Census · Tippecanoe-County, Indiana
Our Model Tree links this James Costello across the 1920, 1930 and 1940 US Censuses in Tippecanoe-County, Indiana (XGBoost, ~Confirmed), with identified parents Michael & Michael — first a head (b.~1914), then head of a 4-person household.
Age 26
b. ~1914
Male
Head
Born: Indiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Tippecanoe-County, Indiana |
| Surname | Costello |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Lafayette City |
| 1935 Residence (County) | Tippecanoe |
| Additional Details | |
| Occupation | Welder |
| Industry | Wire Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1486 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Occupation | Welder |
| Township / Ward | Lafayette City |
| Est. Birth Year | ~1914 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Jane Costello | Spouse | — | 22 | ~1918 |
| Patricia Costello | Daughter | — | 4 | ~1936 |
| James Costello | Head | — | 26 | ~1914 |
| James Costello | Son | — | 3 | ~1937 |
Census Appearances
1920
Tippecanoe, Indiana
Son, age 6
Tippecanoe, Indiana · implied b. ~1914 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Castello |
| Given Name | James B |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Indiana |
| Father's Birthplace | Indiana |
| Mother's Birthplace | Indiana |
| Speaks English | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Tippecanoe, Indiana
Son, age 16
Tippecanoe, Indiana · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Costello |
| Given Name | James M |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| 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
Tippecanoe-County, Indiana
Head, age 26
Tippecanoe-County, Indiana · implied b. ~1914 — 4 household members
| Surname | Costello |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Married |
| Birthplace | Indiana |
| 1935 Residence (City) | Lafayette City |
| 1935 Residence (County) | Tippecanoe |
| Occupation | Welder |
| Industry | Wire Factory |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1486 |
| Highest Grade | Hs 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 Costello across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Michael Castello (~0.92 confidence) and father Michael Costello (~0.92 confidence) and mother Clara Castello (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Michael Castello
b. ~1875
Source father
● Household
· direct · ~0.92
Father
Michael Costello
b. ~1879
Source father
● Household
· direct · ~0.92
Mother
Clara Castello
b. ~1876
Source mother
● Household
· direct · ~0.92
This person
Anchor record
James Costello
Head · 1940 · age 26 · b. ~1914 · Indiana
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Tippecanoe-County, Indiana
Open full size
1940 US Federal Census — Tippecanoe-County, Indiana
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01098-00687)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Irene Fahnestock | 34 | Head | Laundress | Indiana |
| 2 | Richard Fahnestock | 14 | Son | New Worker | Indiana |
| 3 | Robert E Fahnestock | 13 | Son | — | Indiana |
| 4 | Raymond Graves | 34 | Roomer | Farmer | Tennessee |
| 5 | Walter Hipes | 59 | Head | Plasterer | Iowa |
| 6 | Mary Hipes | 52 | Wife | — | Indiana |
| 7 | Robert Masterson | 24 | Step son | Laborer | Indiana |
| 8 | James Moffit | 13 | Step son | — | Indiana |
| 9 | Hugh C Douglass | 54 | Head | Train Dispatcher | Indiana |
| 10 | Pearle Douglass | 54 | Wife | — | Indiana |
| 11 | Hugh C Jr Douglass | 21 | Son | Laborer | Indiana |
| 12 | Mary Jane Douglass | 19 | Daughter | Clerk | Indiana |
| 13 | Charles M Smith | 29 | Son-in-law | Machine Operator | Indiana |
| 14 | Charles M Jr Smith | 7 | Grandson | — | Indiana |
| 15 | Ernest R Collins | 34 | Head | Advertising Solicitor | Indiana |
| 16 | Lorene Collins | 30 | Wife | — | Indiana |
| 17 | Eva Lutts | 66 | Head | — | Indiana |
| 18 | Russell Johnson | 44 | Lodger | Peddler | Indiana |
| 19 | Arthur Harmon | 53 | Head | Minister | Indiana |
| 20 | Lula Harmon | 44 | Wife | — | Illinois |
| 21 | Nora Daugher | 67 | Head | — | Indiana |
| 22 | Judson L Carr | 65 | Head | Teacher | Michigan |
| 23 | Harriet R Carr | 65 | Wife | — | Indiana |
| 24 | — | None | — | — | — |
| 25 | Eugene Hughes | 19 | Head | Kitchen Help | Indiana |
| 26 | Ruth Hughes | 20 | Sister | Asst Bookkeeper | Indiana |
| 27 | Helena Priller | 63 | Head | — | Indiana |
| 28 | Joseph H Weighele | 56 | Boarder | Salesman | Indiana |
| 29 | James Andrew | 30 | Head | Meat Cutter | Indiana |
| 30 | Irene Andrew | 26 | Wife | Stenographer | Indiana |
| 31 | Anna Ullman | 66 | Head | — | Indiana |
| 32 | James Costello THIS PERSON | 26 | Head | Welder | Indiana |
| 33 | Jane Costello | 22 | Wife | — | Indiana |
| 34 | Patricia Ann Costello | 4 | Daughter | — | Indiana |
| 35 | James M Costello | 3 | Son | — | Indiana |
| 36 | Lee Peterson | 52 | Head | Layout Art Glass | Indiana |
| 37 | Ethel Peterson | 38 | Wife | — | Kansas |
| 38 | Marion Peterson | 7 | Son | — | Indiana |
| 39 | J. Everett Titus | 52 | Head | Carpenter | Indiana |
| 40 | Myrtle H Titus | 66 | Wife | — | Indiana |
Pedigree Summary
James
Gen 1 · 3 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)