NT
Nellie Thompson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Frederick-County, Maryland
Our Model Tree links this Nellie Thompson across the 1930 and 1940 US Censuses in Frederick-County, Maryland (XGBoost, ~Confirmed) — first a daughter (b.~1923), then head of a 12-person household.
Age 17
b. ~1923
Female
Daughter
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Frederick-County, Maryland |
| Surname | Thompson |
| Given Name | Nellie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Brunswick town |
| 1935 Residence (County) | Frederick |
| Additional Details | |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Brunswick Town |
| Est. Birth Year | ~1923 |
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.
12 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Nellie | Age | Birth yr |
|---|---|---|---|---|
| Gertrude Thompson | Daughter | — | 10 | ~1930 |
| Daisy Thompson | Daughter | — | 18 | ~1922 |
| Garnetta Thompson | Daughter | — | 13 | ~1927 |
| Nellie Thompson | Daughter | — | 17 | ~1923 |
| Emma Thompson | Daughter | — | 4 | ~1936 |
| Viola Thompson | Daughter | — | 15 | ~1925 |
| Dorothy Thompson | Daughter | — | 21 | ~1919 |
| Reed Thompson | Head | — | 47 | ~1893 |
| Reed Thompson | Son | — | 8 | ~1932 |
| William Thompson | Son | — | 6 | ~1934 |
| Ernest Thompson | Son | — | ~1940 | |
| Beulah Thompson | Spouse | — | 44 | ~1896 |
Census Appearances
1930
Frederick, Maryland
Daughter, age 7
Frederick, Maryland · implied b. ~1923 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Nella P. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | West Virginia |
| Occupation | none |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Frederick-County, Maryland
Daughter, age 17
Frederick-County, Maryland · implied b. ~1923 — 12 household members
| Surname | Thompson |
| Given Name | Nellie |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Brunswick town |
| 1935 Residence (County) | Frederick |
| Highest Grade | Hs 3 |
| 1935 Residence | Same place |
| 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 Nellie Thompson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Nellie Thompson
Daughter · 1940 · age 17 · b. ~1923 · Maryland
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Sibling
Reed Thompson
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Daisy Thompson
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gertrude Thompson
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Viola Thompson
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Thompson
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Garnetta Thompson
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ernest Thompson
Sibling · 1940 · age
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Thompson
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Emma Thompson
Sibling · 1940 · age 4
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-t0627-01549-00657)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Nina Davis | 22 | Daughter | Secretary | Maryland |
| 2 | Stanley Davis | 30 | Son in Law | Manager | Maryland |
| 3 | Reed Thompson | 47 | Head | Laborer | Maryland |
| 4 | Beulah Thompson | 44 | Wife | — | West Virginia |
| 5 | Dorothy Thompson | 21 | Daughter | Floor Girl | Maryland |
| 6 | Daisy Thompson | 18 | Daughter | Boarder | Maryland |
| 7 | Nellie Thompson THIS PERSON | 17 | Daughter | — | Maryland |
| 8 | Viola Thompson | 15 | Daughter | — | Maryland |
| 9 | Garnetta Thompson | 13 | Daughter | — | Maryland |
| 10 | Gertrude Thompson | 10 | Daughter | — | Maryland |
| 11 | Reed Iii Thompson | 8 | Son | — | Maryland |
| 12 | William Thompson | 6 | Son | — | Maryland |
| 13 | Emma Jean Thompson | 4 | Daughter | — | Maryland |
| 14 | Ernest Thompson | 0 | Son | — | Maryland |
| 15 | William O. Barker | 70 | Head | Hostler | West Virginia |
| 16 | Raymond Carey | 47 | Head | Repairman | Maryland |
| 17 | Emma O. Carey | 47 | Wife | — | Maryland |
| 18 | Elmer Munday | 33 | Head | Carman | Maryland |
| 19 | Ollie A. Munday | 23 | Wife | — | Virginia |
| 20 | Jessie Munday | 3 | Daughter | — | Maryland |
| 21 | Raymond Munday | 2 | Son | — | Maryland |
| 22 | Orra Jacobs | 64 | Mother in Law | — | Virginia |
| 23 | Irene Mcclayton | 35 | Head | — | Maryland |
| 24 | Jane A. Mcclayton | 16 | Daughter | — | Maryland |
| 25 | Peggy Mcclayton | 13 | Daughter | — | Maryland |
| 26 | Tillie Mcclayton | 11 | Daughter | — | Maryland |
| 27 | Doris Mcclayton | 8 | Daughter | — | Maryland |
| 28 | Wanda Mcclayton | 4 | Daughter | — | Maryland |
| 29 | Charles Carey | 31 | Head | Brakeman | Maryland |
| 30 | Helen O. Carey | 32 | Wife | — | Maryland |
| 31 | Clara O. Myers | 69 | Head | — | West Virginia |
| 32 | Thomas Habermale | 62 | Head | Machinist | Virginia |
| 33 | Ella A. Habermale | 62 | Wife | — | Maryland |
| 34 | Maria Keplinger | 10 | Niece | — | Maryland |
| 35 | Jessie O. Garrett | 46 | Head | Fireman | Maryland |
| 36 | Sara Garrett | 45 | Wife | — | West Virginia |
| 37 | Clifford Garrett | 22 | Son | Coachman | Maryland |
| 38 | Marion Garrett | 20 | Daughter | Coachman | Maryland |
| 39 | Mary Elizabeth Garrett | 18 | Daughter | Clerk | Maryland |
| 40 | Lucille Garrett | 16 | Daughter | — | Maryland |
Related Census Records
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)