ET
Evelyn Thompson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Frederick-County, Maryland
Our Model Tree links this Evelyn Thompson across the 1930 and 1940 US Censuses in Frederick-County, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1928), then head of a 7-person household.
Age 12
b. ~1928
Female
Daughter
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Frederick-County, Maryland |
| Surname | Thompson |
| Given Name | Evelyn |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Urbana Dist Election District 7 |
| 1935 Residence (County) | Frederick |
| Additional Details | |
| Highest Grade | No 4 |
| 1935 Residence | Same House |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Urbana Dist Election District 7 |
| Est. Birth Year | ~1928 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Evelyn | Age | Birth yr |
|---|---|---|---|---|
| Rosetta Thompson | Daughter | — | 8 | ~1932 |
| Elton Thompson | Head | — | 34 | ~1906 |
| Evelyn Thompson | Daughter | — | 12 | ~1928 |
| Helen Thompson | Daughter | — | 3 | ~1937 |
| Clarance Thompson | Son | — | 1 | ~1939 |
| Gene Thompson | Daughter | — | 11 | ~1929 |
| Ilocca Thompson | Spouse | — | 30 | ~1910 |
Census Appearances
1930
Frederick, Maryland
Daughter, age 3
Frederick, Maryland · implied b. ~1927 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Evelyn |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 3 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Frederick-County, Maryland
Daughter, age 12
Frederick-County, Maryland · implied b. ~1928 — 7 household members
| Surname | Thompson |
| Given Name | Evelyn |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Urbana Dist Election District 7 |
| 1935 Residence (County) | Frederick |
| 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 Thompson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Evelyn Thompson
Daughter · 1940 · age 12 · b. ~1928 · Maryland
★ You are viewing this record
Sibling
Gene Thompson
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Helen Thompson
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clarance Thompson
Sibling · 1940 · age 1
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rosetta Thompson
Sibling · 1940 · age 8
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-t0627-01548-00780)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Bertha Thompson | 32 | wife | Housewife | Maryland |
| 42 | Marie A Thompson | 24 | daughter | Housework | Maryland |
| 43 | Nannie B Thompson | 20 | daughter | Housework | Maryland |
| 44 | Frank M Thompson | 31 | Head | Chauffeur | Maryland |
| 45 | Rebecca V Thompson | 27 | wife | Housewife | Maryland |
| 46 | Louise A Thompson | 11 | daughter | — | Maryland |
| 47 | Ben Thompson | 62 | Father | Laborer | Maryland |
| 48 | Roland M Thompson | 24 | Brother | Laborer | Maryland |
| 49 | John H Thompson | 64 | Head | Laborer | Maryland |
| 50 | Ora Thompson | 50 | Wife | Housework | Maryland |
| 51 | Mary E Thompson | 24 | Daughter | Housekeeper | Maryland |
| 52 | Daniel O Thompson | 10 | Grandson | — | Maryland |
| 53 | Elizabeth Thompson | 9 | Granddaughter | — | Maryland |
| 54 | Charles Thompson | 7 | Grandson | — | Maryland |
| 55 | Elmer L Thompson | 2 | Grandson | — | Maryland |
| 56 | James A Bowie | 65 | Head | — | Maryland |
| 57 | John R Jr Foreman | 21 | Boarder | Housework | Maryland |
| 58 | Mildred E Foreman | 20 | Boarder | Housewife | Maryland |
| 59 | Elton Thompson | 34 | Head | Laborer | Maryland |
| 60 | Ilocca H Thompson | 30 | Wife | Housewife | Maryland |
| 61 | Evelyn Thompson THIS PERSON | 12 | Daughter | — | Maryland |
| 62 | Gene M Thompson | 11 | Daughter | — | Maryland |
| 63 | Rosetta L Thompson | 8 | Daughter | — | Maryland |
| 64 | Helen G Thompson | 3 | Daughter | — | Maryland |
| 65 | Clarance A Thompson | 1 | Son | — | Maryland |
| 66 | Ella C Smith | 63 | Head | Housework | Maryland |
| 67 | C Francis Smith | 8 | Son | — | Maryland |
| 68 | Virgella Smith | 6 | Great Granddaughter | — | Maryland |
| 69 | Emma Stewart | 78 | Head | — | Maryland |
| 70 | Albert Keye | 74 | Head | Laborer | Maryland |
| 71 | Georgia L Keye | 75 | Wife | Housewife | Maryland |
| 72 | Beatrice L Stevens | 15 | Granddaughter | — | Maryland |
| 73 | Jesse T Harris | 34 | Head | — | Maryland |
| 74 | Nora M Harris | 34 | Wife | Laborer | Maryland |
| 75 | Daisy N Harris | 14 | Daughter | Housewife | Maryland |
| 76 | Jesse T Harris | 13 | Son | — | Maryland |
| 77 | George E Harris | 11 | Son | — | Maryland |
| 78 | Sterling T Harris | 8 | Son | — | Maryland |
| 79 | William A Harris | 7 | Son | — | Maryland |
| 80 | Melvin E Harris | 3 | Son | — | 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)