JC
James Carroll — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Ringgold-County, Iowa
Our Model Tree links this James Carroll across the 1920, 1930 and 1940 US Censuses in Ringgold-County, Iowa (XGBoost, ~Confirmed) — first a head (b.~1877), then head of a 4-person household.
Age 63
b. ~1877
Male
Head
Born: Connecticut
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Ringgold-County, Iowa |
| Surname | Carroll |
| Given Name | James T. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 63 |
| Marital Status | Married |
| Birthplace | Connecticut |
| 1935 Residence (City) | Lincoln Township |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Connecticut |
| Birth Country | United States |
| Birthplace (normalized) | connecticut |
| Township / Ward | Lincoln Township |
| Est. Birth Year | ~1877 |
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 |
|---|---|---|---|---|
| James Carroll | Head | — | 63 | ~1877 |
| Floyd Campbell | Other | — | 54 | ~1886 |
| Rayford Carroll | Son | — | 30 | ~1910 |
| Mary Carroll | Spouse | — | 56 | ~1884 |
Census Appearances
1920
Ringgold, Iowa
Head, age 43
Ringgold, Iowa · implied b. ~1877 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carroll |
| Given Name | James |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 43 |
| Marital Status | Married |
| Birthplace | Connecticut |
| Year of Immigration | 1869 |
| Naturalization Status | Alien |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Irish |
| Home Owned/Rented | O |
| Home Free/Mortgaged | M |
| Birth State | Connecticut |
| Birth Country | United States |
| Birthplace (normalized) | connecticut |
1930
Ringgold, Iowa
Head, age 53
Ringgold, Iowa · implied b. ~1877 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carroll |
| Given Name | James P |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 53 |
| Marital Status | Married |
| Birthplace | Connecticut |
| Age at First Marriage | 26 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Ireland |
| Occupation | Farmer |
| Industry | General Farm |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Veteran | No |
| Birth State | Connecticut |
| Birth Country | United States |
| Birthplace (normalized) | connecticut |
1940
Ringgold-County, Iowa
Head, age 63
Ringgold-County, Iowa · implied b. ~1877 — 4 household members
| Surname | Carroll |
| Given Name | James T. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 63 |
| Marital Status | Married |
| Birthplace | Connecticut |
| 1935 Residence (City) | Lincoln Township |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Connecticut |
| Birth Country | United States |
| Birthplace (normalized) | connecticut |
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 Carroll across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
James Carroll
Head · 1940 · age 63 · b. ~1877 · Iowa
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Ringgold-County, Iowa
Open full size
1940 US Federal Census — Ringgold-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01201-00146)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Gerald F. Lean | 6 | Son | — | Iowa |
| 42 | John V. Herrold | 59 | Head | Farmer | Missouri |
| 43 | Diana T. Herrold | 56 | Wife | — | Missouri |
| 44 | Hubert B. Herrold | 30 | Son | Farmer | Missouri |
| 45 | Lula May Herrold | 27 | Daughter | — | Missouri |
| 46 | John Jr. Herrold | 25 | Son | Farmer | Missouri |
| 47 | Ruth Herrold | 19 | Daughter | — | Missouri |
| 48 | Vincent W. Herrold | 17 | Son | Farmer | Missouri |
| 49 | James T. Carroll THIS PERSON | 63 | Head | — | Connecticut |
| 50 | Mary Carroll | 56 | Wife | — | Iowa |
| 51 | Rayford E. Carroll | 30 | Son | Farmer | Iowa |
| 52 | Floyd A. Campbell | 54 | Hired Hand | Hired Hand | South Dakota |
| 53 | Pearlie V. Toland | 45 | Head | Farmer | Iowa |
| 54 | Gertrude A. Toland | 38 | Wife | — | Iowa |
| 55 | Floyd A. Whipp | 45 | Head | Farmer | Iowa |
| 56 | Isabelle F. Whipp | 44 | Wife | — | Iowa |
| 57 | Ruth P. Whipp | 22 | Daughter | — | Iowa |
| 58 | Betty Whipp | 20 | Daughter | Office Work In Aaa Office | Iowa |
| 59 | John H. Whipp | 16 | Son | — | Iowa |
| 60 | Floyd L. Whipp | 15 | Son | — | Iowa |
| 61 | — | None | — | — | — |
| 62 | Walter F. Hunger | 60 | Head | Farmer | Iowa |
| 63 | Ivy L. Hunger | 48 | Wife | — | Iowa |
| 64 | Elmina Bailey | 81 | Mother-in-law | Retired | Iowa |
| 65 | Emmet R. Beard | 26 | Head | Farmer | Oklahoma |
| 66 | Veva F. Beard | 24 | Wife | — | Iowa |
| 67 | John Short | 67 | Head | Farmer | Canada |
| 68 | Ilay G. Short | 64 | Wife | — | New York |
| 69 | Leroy M. Long | 20 | Hired Hand | Farmer | Iowa |
| 70 | Sam Strauss | 60 | Head | Farmer | Iowa |
| 71 | Sarah Strauss | 55 | Wife | — | Iowa |
| 72 | John Brown | 39 | Head | Farmer | Iowa |
| 73 | Sarah F. Brown | 50 | Wife | — | Missouri |
| 74 | — | None | — | — | — |
| 75 | Ernest M. Hughes | 64 | Head | Farmer | Illinois |
| 76 | Edith M. Hughes | 61 | Wife | — | Iowa |
| 77 | Lloyd L. Ross | 21 | Head | Farmer | Iowa |
| 78 | Lola J. Ross | 20 | Wife | — | Iowa |
| 79 | David C. Armstrong | 69 | Head | Farmer | Iowa |
| 80 | Fannie Armstrong | 71 | Wife | — | Vermont |
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)