MT
Margaret Thompson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Montgomery-County, Maryland
Our Model Tree links this Margaret Thompson across the 1920, 1930 and 1940 US Censuses in Montgomery-County, Maryland (XGBoost, ~Confirmed), with identified parents Marshall & Isabel — first a daughter (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Female
Daughter
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Montgomery-County, Maryland |
| Surname | Thompson |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | District 5 Colesville |
| 1935 Residence (County) | Montgomery |
| Additional Details | |
| Occupation | Stenographer |
| Industry | P.G. Electric Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 256 |
| Highest Grade | Hs 4 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Stenographer |
| Township / Ward | District 5 Colesville |
| 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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| Margaret Thompson | Daughter | — | 22 | ~1918 |
| Herbert Thompson | Head | — | 58 | ~1882 |
| Herbert Thompson | Son | — | 10 | ~1930 |
| Annie Thompson | Spouse | — | 53 | ~1887 |
Census Appearances
1920
Montgomery, Maryland
Daughter, age
Montgomery, Maryland · implied b. ~1920 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | none |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Montgomery, Maryland
Daughter, age 11
Montgomery, Maryland · implied b. ~1919 — 15 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 11 |
| 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
Montgomery-County, Maryland
Daughter, age 22
Montgomery-County, Maryland · implied b. ~1918 — 4 household members
| Surname | Thompson |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | District 5 Colesville |
| 1935 Residence (County) | Montgomery |
| Occupation | Stenographer |
| Industry | P.G. Electric Co |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 256 |
| Highest Grade | Hs 4 |
| 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 Margaret Thompson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Marshall Thompson (~0.92 confidence) and mother Isabel Thompson (~0.92 confidence) and father Herbert Thompson (~0.92 confidence) and mother Margaret Thompson (~0.92 confidence) and mother Annie Thompson (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Marshall Thompson
b. ~1878
Source father
● Household
· direct · ~0.92
Mother
Isabel Thompson
b. ~1879
Source mother
● Household
· direct · ~0.92
Father
Herbert Thompson
b. ~1882
Source father
● Household
· direct · ~0.92
Mother
Margaret Thompson
b. ~1886
Source mother
● Household
· direct · ~0.92
Mother
Annie Thompson
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Thompson
Daughter · 1940 · age 22 · b. ~1918 · Maryland
★ You are viewing this record
Sibling
Herbert Thompson
Sibling · 1940 · age 10
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 — Montgomery-County, Maryland
Open full size
1940 US Federal Census — Montgomery-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01553-00343)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ezra Mayo | 68 | Head | Carpenter | North Carolina |
| 2 | Ora Mayo | 64 | Wife | — | North Carolina |
| 3 | May Mccoy | 43 | Daughter | Chef | North Carolina |
| 4 | Merombee Mccoy | 39 | Son | Chef | North Carolina |
| 5 | Ella Ferryman | 67 | Head | — | Virginia |
| 6 | Monecue Carpenter | 10 | Lodger | — | Washington D.C. |
| 7 | Robert Taylor | 49 | Lodger | — | Virginia |
| 8 | Archer Beacraft | 26 | Head | Attendant | Maryland |
| 9 | Ruth Beacraft | 21 | Wife | — | Maryland |
| 10 | Shirley Beacraft | 2 | Daughter | — | Maryland |
| 11 | Glenn Hance | 34 | Head | Foreman | North Carolina |
| 12 | Alice Hance | 27 | Wife | — | Virginia |
| 13 | Alice P Noyle | 9 | Daughter | — | Maryland |
| 14 | Roy Doyle | 6 | Son | — | Maryland |
| 15 | James Record | 29 | Head | Plumber | Maine |
| 16 | Velora Record | 31 | Wife | — | North Carolina |
| 17 | Edw Record | 3 | Son | — | Maryland |
| 18 | Loretta Moon | 31 | Niece | Housework | Ohio |
| 19 | Jake Shiplet | 40 | Head | Dairyman | Virginia |
| 20 | Velvia Shiplet | 35 | Wife | — | W. Virginia |
| 21 | Beatrice Shiplet | 7 | Daughter | — | W. Virginia |
| 22 | Jake Shiplet | 5 | Son | — | Virginia |
| 23 | Cleveland Shiplet | 3 | Son | — | Virginia |
| 24 | Benj Satterfield | 49 | Head | Salesman | Ohio |
| 25 | Elsie Satterfield | 48 | Wife | — | Washington D.C. |
| 26 | Doris Satterfield | 17 | Daughter | — | Ohio |
| 27 | Eileen Satterfield | 14 | Daughter | — | Maryland |
| 28 | Lloyd Crosley | 40 | Head | — | Indiana |
| 29 | Genevieve Crosley | 38 | Wife | Stenographer | Maryland |
| 30 | Marion Crosley | 15 | Daughter | — | Washington D.C. |
| 31 | Peggy Crosley | 11 | Daughter | — | New York |
| 32 | William Crosley | 10 | Son | — | New York |
| 33 | Robt Crosley | 8 | Son | — | New York |
| 34 | Newitt Crosley | 6 | Son | — | Washington D.C. |
| 35 | Herbert Thompson | 58 | Head | Farmer | Maryland |
| 36 | Annie Thompson | 53 | Wife | — | Maryland |
| 37 | Margaret Thompson THIS PERSON | 22 | Daughter | Stenographer | Maryland |
| 38 | Herbert Jr Thompson | 10 | Son | — | Maryland |
| 39 | Archer Niel | 36 | Head | Distributor | Maryland |
| 40 | Maude Niel | 36 | Wife | — | Maryland |
Related Census Records
Pedigree Summary
Margaret + 1 sibling
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)