ET
Evelyn Thomas — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Frederick-County, Maryland
Our Model Tree links this Evelyn Thomas across the 1930 and 1940 US Censuses in Frederick-County, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1916), then head of a 10-person household.
Age 24
b. ~1916
Female
Daughter
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Frederick-County, Maryland |
| Surname | Thomas |
| Given Name | Evelyn L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | District #2 |
| 1935 Residence (County) | Frederick |
| Additional Details | |
| Occupation | Dietitian |
| Industry | Un. of Md. |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 1020 |
| Highest Grade | No 4 |
| 1935 Residence | Same House |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Dietitian |
| Township / Ward | District 2 |
| Est. Birth Year | ~1916 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Evelyn | Age | Birth yr |
|---|---|---|---|---|
| Evelyn Thomas | Daughter | — | 24 | ~1916 |
| Dorothy Thomas | Daughter | — | 21 | ~1919 |
| Margaret Thomas | Daughter | — | 32 | ~1908 |
| Geraldine Thomas | Daughter | — | 17 | ~1923 |
| Elmer Thomas | Head | — | 59 | ~1881 |
| Berkeley Fields | Other | — | 42 | ~1898 |
| Ann Thomas | Daughter | — | 14 | ~1926 |
| Agnes Thomas | Daughter | — | 19 | ~1921 |
| Charles Thomas | Son | — | 11 | ~1929 |
| Maude Thomas | Spouse | — | 55 | ~1885 |
Census Appearances
1930
Frederick, Maryland
Daughter, age 15
Frederick, Maryland · implied b. ~1915 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Evelyn L |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Frederick-County, Maryland
Daughter, age 24
Frederick-County, Maryland · implied b. ~1916 — 10 household members
| Surname | Thomas |
| Given Name | Evelyn L. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | District #2 |
| 1935 Residence (County) | Frederick |
| Occupation | Dietitian |
| Industry | Un. of Md. |
| Class of Worker | PW |
| Hours Worked | 56 |
| Income (1939) | 1020 |
| Highest Grade | No 4 |
| 1935 Residence | Same House |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
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 Evelyn Thomas across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Evelyn Thomas
Daughter · 1940 · age 24 · b. ~1916 · Maryland
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Sibling
Margaret Thomas
Sibling · 1940 · age 32
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Geraldine Thomas
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Agnes Thomas
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Charles Thomas
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Thomas
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ann Thomas
Sibling · 1940 · age 14
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 — Frederick-County, Maryland
Open full size
1940 US Federal Census — Frederick-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01548-00544)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Nora May Brust | 11 | Daughter | — | Maryland |
| 2 | Herman Jr. Brust | 6 | Son | — | Maryland |
| 3 | Barbara Brust | 10 | Daughter | — | Maryland |
| 4 | John H. Shoemaker | 35 | Head | Trimmer | Maryland |
| 5 | Elizabeth Shoemaker | 32 | Wife | — | Maryland |
| 6 | Mary Jane Shoemaker | 12 | Daughter | — | Maryland |
| 7 | Anna May Shoemaker | 10 | Daughter | — | Maryland |
| 8 | G. G. Beall | 66 | Head | Farmer | Maryland |
| 9 | Katie Mae Beall | 53 | Wife | — | Maryland |
| 10 | John F. Beall | 33 | Son | Laborer | Maryland |
| 11 | Claude V. Beall | 26 | Son | Laborer | Maryland |
| 12 | Mary E. Beall | 23 | Daughter | Housework | Maryland |
| 13 | Edna Mae Beall | 20 | Daughter | Housework | Maryland |
| 14 | Irvin Leroy Beall | 13 | Son | — | Maryland |
| 15 | Arthur Elzie Shook | 33 | Head | Farmer | Maryland |
| 16 | Helen Shook | 30 | Wife | — | Maryland |
| 17 | Arthur Lee Shook | 10 | Son | — | Maryland |
| 18 | Clarence Whiten | 32 | Hired Hand | Laborer | Maryland |
| 19 | Harry F. Barnes | 70 | Head | Farmer | Maryland |
| 20 | Charles W. Barnes | 40 | Son | Laborer | Maryland |
| 21 | Raymond Barnes | 34 | Son | Laborer | Maryland |
| 22 | Mary Barnes | 27 | Wife | Seamstress | Maryland |
| 23 | Edith Barnes | 25 | Daughter | — | Maryland |
| 24 | Elmer E. Thomas | 59 | Head | Farmer | Maryland |
| 25 | Maude L. Thomas | 55 | Wife | — | Maryland |
| 26 | Margaret E. Thomas | 32 | Daughter | Bookkeeper | Maryland |
| 27 | Evelyn L. Thomas THIS PERSON | 24 | Daughter | Dietitian | Maryland |
| 28 | Dorothy O. Thomas | 21 | Daughter | Nurse | Maryland |
| 29 | Geraldine Thomas | 17 | Daughter | — | Maryland |
| 30 | Ann R. Thomas | 14 | Daughter | — | Maryland |
| 31 | Charles Henry Thomas | 11 | Son | — | Maryland |
| 32 | Berkeley F. Fields | 42 | Servant | Laborer | Maryland |
| 33 | Agnes Thomas | 19 | Daughter | — | Maryland |
| 34 | John E. Barnes | 30 | Head | Laborer | Maryland |
| 35 | Carrie Barnes | 28 | Wife | — | Maryland |
| 36 | Sarah Barnes | 2 | Daughter | — | Maryland |
| 37 | John M. Thum | 30 | Head | Farmer | Maryland |
| 38 | Elizabeth Thum | 26 | Wife | — | Maryland |
| 39 | Ida Thum | 18 | Sister | — | Maryland |
| 40 | Ernest Hackey | 38 | Servant | Laborer | Maryland |
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)