AT
Anna Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Ross-County, Ohio
Our Model Tree links this Anna Thomas across the 1920, 1930 and 1940 US Censuses in Ross-County, Ohio (XGBoost, ~Confirmed), with identified parents John & John — first a daughter (b.~1915), then head of a 6-person household.
Age 25
b. ~1915
Female
Daughter
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Ross-County, Ohio |
| Surname | Thomas |
| Given Name | Anna M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Chillicothe |
| 1935 Residence (County) | Ross |
| Additional Details | |
| Occupation | Bookkeeper |
| Industry | Milling Co |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 750 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Bookkeeper |
| Township / Ward | Chillicothe |
| Est. Birth Year | ~1915 |
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.
6 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Anna | Age | Birth yr |
|---|---|---|---|---|
| Betty Thomas | Daughter | — | 15 | ~1925 |
| Anna Thomas | Daughter | — | 25 | ~1915 |
| John Thomas | Head | — | 56 | ~1884 |
| Kenneth Thomas | Son | — | 19 | ~1921 |
| Meredith Thomas | Son | — | 21 | ~1919 |
| Ethel Thomas | Spouse | — | 50 | ~1890 |
Census Appearances
1920
Ross, Ohio
Daughter, age 5
Ross, Ohio · implied b. ~1915 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Anna M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Ross, Ohio
Daughter, age 15
Ross, Ohio · implied b. ~1915 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Anna M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Ross-County, Ohio
Daughter, age 25
Ross-County, Ohio · implied b. ~1915 — 6 household members
| Surname | Thomas |
| Given Name | Anna M. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Chillicothe |
| 1935 Residence (County) | Ross |
| Occupation | Bookkeeper |
| Industry | Milling Co |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 750 |
| Highest Grade | Hs 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 Anna Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father John Thomas (~0.92 confidence) and father John Thomas (~0.92 confidence) and father John Thomas (~0.92 confidence) and mother Ethel Thomas (~0.92 confidence) and mother Ethel Thomas (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Thomas
b. ~1884
Source father
● Household
· direct · ~0.92
Father
John Thomas
b. ~1884
Source father
● Household
· direct · ~0.92
Father
John Thomas
b. ~1890
Source father
● Household
· direct · ~0.92
Mother
Ethel Thomas
b. ~1890
Source mother
● Household
· direct · ~0.92
Mother
Ethel Thomas
b. ~1890
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Anna Thomas
Daughter · 1940 · age 25 · b. ~1915 · Ohio
★ You are viewing this record
Sibling
Kenneth Thomas
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Meredith Thomas
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Betty Thomas
Sibling · 1940 · age 15
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 — Ross-County, Ohio
Open full size
1940 US Federal Census — Ross-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03138-00060)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Myrl H. Anderson | 39 | Wife | — | Kansas |
| 42 | Amil Anderson | 12 | Son | — | Missouri |
| 43 | Barbara Anderson | 7 | Daughter | — | Illinois |
| 44 | John E. Thomas | 56 | Head | Truck Driver | Ohio |
| 45 | Ethel Thomas | 50 | Wife | — | Ohio |
| 46 | Anna M. Thomas THIS PERSON | 25 | Daughter | Bookkeeper | Ohio |
| 47 | Meredith Thomas | 21 | Son | Inspector | Ohio |
| 48 | Kenneth Thomas | 19 | Son | — | Ohio |
| 49 | Betty Jane Thomas | 15 | Daughter | — | Ohio |
| 50 | Jesse White | 57 | Head | Stationary Engineer | Ohio |
| 51 | Harriet White | 51 | Wife | — | Ohio |
| 52 | William A. Lavenheimer | 61 | Head | Lineman | Ohio |
| 53 | Minnie Lavenheimer | 59 | Wife | — | Ohio |
| 54 | Robert Pettiford | 71 | Head | — | Ohio |
| 55 | Martha Pettiford | 65 | Wife | — | Virginia |
| 56 | Ernest Mcneal | 38 | Head | Mechanic | Ohio |
| 57 | Leona Mcneal | 39 | Wife | Laundress | Ohio |
| 58 | Doris Mcneal | 13 | Daughter | — | Ohio |
| 59 | Joe E. Mcneal | 10 | Son | — | Ohio |
| 60 | Mary Mcneal | 8 | Daughter | — | Ohio |
| 61 | William Berthold | 34 | Head | Asst. Supt. | Ohio |
| 62 | Miriam Berthold | 31 | Wife | — | Ohio |
| 63 | Elizabeth M. Berthold | 73 | Head | Tailor | Ohio |
| 64 | Marion A. Smith | 39 | Lodger | Baker | West Virginia |
| 65 | Ruth E. Smith | 30 | Lodger | — | Ohio |
| 66 | Edward Barth | 65 | Head | Treasurer | Ohio |
| 67 | Ida Barth | 57 | Wife | — | Indiana |
| 68 | Hardy C. Junk | 35 | Head | Truck Driver | Ohio |
| 69 | Helen Junk | 32 | Wife | — | Ohio |
| 70 | Edgar Junk | 8 | Son | — | Ohio |
| 71 | Paul Junk | 6 | Son | — | Ohio |
| 72 | Joseph Hammond | 33 | Head | Asst. Engineer | Ohio |
| 73 | Lillian Hammond | 29 | Wife | — | Ohio |
| 74 | Roger Hammond | 4 | Son | — | Ohio |
| 75 | Janice Hammond | 1 | Daughter | — | Ohio |
| 76 | Maggie Evans | 54 | Mother-in-law | — | Ohio |
| 77 | William Scott | 45 | Head | Plumber | Ohio |
| 78 | Elizabeth Scott | 42 | Wife | — | Ohio |
| 79 | Harold Scott | 17 | Son | — | Ohio |
| 80 | Mildred Scott | 10 | Daughter | — | Ohio |
Pedigree Summary
Anna + 3 siblings
Gen 1 · 5 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)