MC
Mary Carroll — 1940 US Census Record
Model Tree available1940 United States Federal Census · Boyle-County, Kentucky
Our Model Tree links this Mary Carroll across the 1920, 1930 and 1940 US Censuses in Boyle-County, Kentucky (XGBoost, ~Confirmed), with identified parents James & Anna — first a daughter (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Female
Daughter
Born: Kentucky
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Boyle-County, Kentucky |
| Surname | Carroll |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Danville city |
| 1935 Residence (County) | Boyle |
| Additional Details | |
| Occupation | Cook |
| Industry | Private Home |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 210 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
| Occupation | Cook |
| Township / Ward | Danville City |
| Est. Birth Year | ~1918 |
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 Mary | Age | Birth yr |
|---|---|---|---|---|
| Ruth Carroll | Daughter | — | 13 | ~1927 |
| Mary Carroll | Daughter | — | 22 | ~1918 |
| Anna Carroll | Head | — | 47 | ~1893 |
| Ethel Dunn | Other | — | 3 | ~1937 |
Census Appearances
1920
Boyle, Kentucky
Daughter, age 1
Boyle, Kentucky · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Carrol |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1930
Boyle, Kentucky
Daughter, age 11
Boyle, Kentucky · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Caroll |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Kentucky |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
1940
Boyle-County, Kentucky
Daughter, age 22
Boyle-County, Kentucky · implied b. ~1918 — 4 household members
| Surname | Carroll |
| Given Name | Mary |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Kentucky |
| 1935 Residence (City) | Danville city |
| 1935 Residence (County) | Boyle |
| Occupation | Cook |
| Industry | Private Home |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 210 |
| Highest Grade | No 5 |
| 1935 Residence | Same place |
| Birth State | Kentucky |
| Birth Country | United States |
| Birthplace (normalized) | kentucky |
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 Mary Carroll across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father James Carrol (~0.92 confidence) and mother Anna Caroll (~0.92 confidence) and mother Annie Carrol (~0.92 confidence) and mother Anna Carroll (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
James Carrol
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Anna Caroll
b. ~1885
Source mother
● Household
· direct · ~0.92
Mother
Annie Carrol
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Anna Carroll
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Mary Carroll
Daughter · 1940 · age 22 · b. ~1918 · Kentucky
★ You are viewing this record
Sibling
Ruth Carroll
Sibling · 1940 · age 13
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 — Boyle-County, Kentucky
Open full size
1940 US Federal Census — Boyle-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01284-00298)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mervin Patterson | 38 | Head | Janitor | Kentucky |
| 2 | Herbert Patterson | 14 | Son | — | Kentucky |
| 3 | William Patterson | 10 | Son | — | Kentucky |
| 4 | Charles Patterson | 8 | Son | — | Kentucky |
| 5 | Ann H. Faulkner | 57 | Head | — | Kentucky |
| 6 | William James | 64 | Head | — | Kentucky |
| 7 | Ella James | 57 | Wife | Cook | Kentucky |
| 8 | Sarah Churchill | 47 | Mother-in-law | Cook | Kentucky |
| 9 | Raymond Parr | 40 | Head | Paper Hanger | Kentucky |
| 10 | Sadie Parr | 32 | Wife | — | Kentucky |
| 11 | Howard Parr | 12 | Son | — | Kentucky |
| 12 | Robert Trumbo | 63 | Head | — | Kentucky |
| 13 | Mary S. Trumbo | 41 | Wife | Cook | Kentucky |
| 14 | Grace Trumbo | 17 | Daughter | Cook | Kentucky |
| 15 | Willie Trumbo | 16 | Daughter | Cook | Kentucky |
| 16 | Bessie R. Trumbo | 7 | Daughter | — | Kentucky |
| 17 | Mayme Cowan | 18 | Niece | Cook | Kentucky |
| 18 | Kittie Mcdowell | 69 | Head | Laundress | Kentucky |
| 19 | Nara Mcdowell | 42 | Daughter | Laundress | Kentucky |
| 20 | Richard Revely | 35 | Head | Janitor | Kentucky |
| 21 | Lannie Revely | 30 | Sister | Maid | Kentucky |
| 22 | Ique Vaught | 31 | Lodger | Janitor | Kentucky |
| 23 | Thomas Revely | 36 | Head | Janitor | Kentucky |
| 24 | Dora E. Revely | 26 | Wife | — | Kentucky |
| 25 | Delores Revely | 6 | Daughter | — | Kentucky |
| 26 | Melinda Revely | 5 | Daughter | — | Kentucky |
| 27 | Gladys Revely | 2 | Daughter | — | Kentucky |
| 28 | Lee Carpenter | 56 | Head | Janitor | Kentucky |
| 29 | Ella Carpenter | 54 | Wife | — | Kentucky |
| 30 | Josephine Carpenter | 16 | Daughter | — | Kentucky |
| 31 | William Penman | 37 | Head | Loader | Kentucky |
| 32 | Rosabel Meadows | 37 | Lodger | Laundress | Kentucky |
| 33 | Edward Miller | 8 | Lodger | — | Kentucky |
| 34 | Anna Carroll | 47 | Head | — | Kentucky |
| 35 | Mary Carroll THIS PERSON | 22 | Daughter | Cook | Kentucky |
| 36 | Ruth Carroll | 13 | Daughter | — | Kentucky |
| 37 | Ethel R. Dunn | 3 | Niece | — | Kentucky |
| 38 | Dave Brown | 40 | Head | Laborer | Kentucky |
| 39 | Frank Owens | 56 | Head | Carpenter | Kentucky |
| 40 | Mary Owens | 48 | Wife | Laundress | Kentucky |
Pedigree Summary
Mary + 1 sibling
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)