JC
Joseph Carroll — 1940 US Census Record
Model Tree available1940 United States Federal Census · Mahoning-County, Ohio
Our Model Tree links this Joseph Carroll across the 1920, 1930 and 1940 US Censuses in Mahoning-County, Ohio (XGBoost, ~Confirmed), with identified parents Joseph & Cora — first a son (b.~1917), then head of a 5-person household.
Age 23
b. ~1917
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Mahoning-County, Ohio |
| Surname | Carroll |
| Given Name | Joseph M. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Youngstown City |
| 1935 Residence (County) | Mahoning |
| Additional Details | |
| Occupation | attendant |
| Industry | Parking lot |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 416 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Attendant |
| Township / Ward | Youngstown City |
| 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 Joseph | Age | Birth yr |
|---|---|---|---|---|
| Joseph Carroll | Head | — | 60 | ~1880 |
| Cora Carroll | Spouse | — | 47 | ~1893 |
| Joseph Carroll | Son | — | 23 | ~1917 |
| John Carroll | Son | — | 22 | ~1918 |
| Laura Hanagen | Other | — | 69 | ~1871 |
Census Appearances
1920
Mahoning, Ohio
Other, age 3
Mahoning, Ohio · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carroll |
| Given Name | Joseph M |
| Relationship to Head | grandson |
| Sex | M |
| Color / Race | White |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Mahoning, Ohio
Son, age 13
Mahoning, Ohio · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carroll |
| Given Name | Joseph M Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Mahoning-County, Ohio
Son, age 23
Mahoning-County, Ohio · implied b. ~1917 — 5 household members
| Surname | Carroll |
| Given Name | Joseph M. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Youngstown City |
| 1935 Residence (County) | Mahoning |
| Occupation | attendant |
| Industry | Parking lot |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 416 |
| Highest Grade | H 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 Joseph Carroll across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Joseph Carroll (~0.92 confidence) and mother Cora Carroll (~0.92 confidence) and mother Sara Carroll (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Joseph Carroll
b. ~1881
Source father
● Household
· direct · ~0.92
Mother
Cora Carroll
b. ~1893
Source mother
● Household
· direct · ~0.92
Mother
Sara Carroll
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Joseph Carroll
Son · 1940 · age 23 · b. ~1917 · Ohio
★ You are viewing this record
Sibling
John Carroll
Sibling · 1940 · age 22
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 — Mahoning-County, Ohio
Open full size
1940 US Federal Census — Mahoning-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03271-00060)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Johnson Hall | 30 | Head | Clerk | W. Virginia |
| 2 | Ruth B. Hall | 31 | Wife | Telephone Operator | Pennsylvania |
| 3 | Ivan Klarich | 27 | Head | Owner | Ohio |
| 4 | Annabelle Klarich | 30 | Wife | — | Ohio |
| 5 | John Klarich | 12 | Son | — | Ohio |
| 6 | John Heckel | 70 | Lodger | Painter | Pennsylvania |
| 7 | Quentin Heckel | 30 | Lodger's son | Bridge Builder | Ohio |
| 8 | George Heckel | 24 | Lodger's son | — | Ohio |
| 9 | Joseph M. Carroll | 60 | Head | Pharmacist | Pennsylvania |
| 10 | Cora Carroll | 47 | Wife | — | Ohio |
| 11 | Joseph M. Jr. Carroll THIS PERSON | 23 | Son | Attendant | Ohio |
| 12 | John Howard Carroll | 22 | Son | — | Ohio |
| 13 | Laura S. Hanagen | 69 | Mother-in-law | — | Ohio |
| 14 | James Baird | 28 | Head | Time Keeper | Ohio |
| 15 | Dorothy Baird | 26 | Wife | — | Ohio |
| 16 | Fred Cohn | 41 | Head | Owner | Roumania |
| 17 | Rebecca Cohn | 42 | Wife | Clerk | Pennsylvania |
| 18 | Stanley Cohn | 14 | Son | — | Ohio |
| 19 | Ann Hutsko | 23 | Maid | Maid | Ohio |
| 20 | Stansbury Jr. John | 22 | Son | — | Maryland |
| 21 | George Herbert Clarke | 62 | Head | Metallurgist | Ohio |
| 22 | Mabel E. Clarke | 62 | Wife | — | Pennsylvania |
| 23 | William Sinclair | 21 | Head | Truck Driver | Ohio |
| 24 | Deretha Sinclair | 19 | Wife | — | Ohio |
| 25 | Dor S. James | 51 | Head | Shipper | Ohio |
| 26 | Sara H. James | 46 | Wife | — | Canada (English) |
| 27 | Mary Dean | 30 | Head | Loan Officer | Ohio |
| 28 | Alice R. Dirmeyer | 28 | Partner | Secretary | Ohio |
| 29 | Erwin W. Frease | 13 | Grandson | — | Ohio |
| 30 | Donna M. Frease | 7 | Granddaughter | — | Ohio |
| 31 | Noah Rutledge | 40 | Head | Shop Superintendent | Ohio |
| 32 | Lorain Rutledge | 41 | Wife | — | Pennsylvania |
| 33 | Dolores Rutledge | 19 | daughter | — | Pennsylvania |
| 34 | Eileen Rutledge | 16 | daughter | — | Ohio |
| 35 | Lois Rutledge | 13 | daughter | — | Ohio |
| 36 | Julia Stewart | 35 | Head | — | Pennsylvania |
| 37 | Jane Stewart | 14 | daughter | — | Pennsylvania |
| 38 | George Roth | 76 | Lodger | Shearman Helper | Roumania |
| 39 | Edward Scharsu | 29 | Head | Truck Driver | Ohio |
| 40 | Frances Scharsu | 25 | Wife | — | Ohio |
Related Census Records
Pedigree Summary
Joseph + 1 sibling
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)