HT
Henry Thompson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Montgomery-County, Maryland
Our Model Tree links this Henry Thompson across the 1920, 1930 and 1940 US Censuses in Montgomery-County, Maryland (XGBoost, ~Confirmed), with identified parents Harvey & Henry — first a son (b.~1919), then head of a 5-person household.
Age 21
b. ~1919
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Montgomery-County, Maryland |
| Surname | Thompson |
| Given Name | Henry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Elec Dist #12 |
| 1935 Residence (County) | Montgomery |
| Additional Details | |
| Occupation | Dairy worker |
| Industry | Farming |
| Class of Worker | PW |
| Hours Worked | 80 |
| Income (1939) | 450 |
| Highest Grade | H 8 |
| 1935 Residence | Same house |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Dairy Worker |
| Township / Ward | Elec Dist 12 |
| Est. Birth Year | ~1919 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Henry | Age | Birth yr |
|---|---|---|---|---|
| Fanny Thompson | Daughter | — | 16 | ~1924 |
| Harvey Thompson | Head | — | 48 | ~1892 |
| Henry Thompson | Son | — | 21 | ~1919 |
| Claude Thompson | Son | — | 18 | ~1922 |
| Gladys Thompson | Spouse | — | 41 | ~1899 |
Census Appearances
1920
Montgomery, Maryland
Son, age 1
Montgomery, Maryland · implied b. ~1919 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Henry C. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Montgomery, Maryland
Son, age 11
Montgomery, Maryland · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thompson |
| Given Name | Henry E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Montgomery-County, Maryland
Son, age 21
Montgomery-County, Maryland · implied b. ~1919 — 5 household members
| Surname | Thompson |
| Given Name | Henry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Elec Dist #12 |
| 1935 Residence (County) | Montgomery |
| Occupation | Dairy worker |
| Industry | Farming |
| Class of Worker | PW |
| Hours Worked | 80 |
| Income (1939) | 450 |
| Highest Grade | H 8 |
| 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 Henry Thompson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Harvey Thompson (~0.92 confidence) and father Henry Thompson (~0.92 confidence) and mother Gladys Thompson (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Harvey Thompson
b. ~1892
Source father
● Household
· direct · ~0.92
Father
Henry Thompson
b. ~1892
Source father
● Household
· direct · ~0.92
Mother
Gladys Thompson
b. ~1899
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Henry Thompson
Son · 1940 · age 21 · b. ~1919 · Maryland
★ You are viewing this record
Sibling
Claude Thompson
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Fanny Thompson
Sibling · 1940 · age 16
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-t0627-01555-00042)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Chas W Coe | 57 | Head | Farm Operator | New York |
| 42 | Eliza M Coe | 56 | Wife | — | Virginia |
| 43 | Robert Watkins | 59 | Head | Laborer | Maryland |
| 44 | Abbie Lee | 77 | Sister-in-law | — | Maryland |
| 45 | Herbert G Desso | 79 | Head | Laborer | Maryland |
| 46 | Sarah Jane Desso | 72 | Wife | — | Maryland |
| 47 | Raymond Desso | 54 | Son | Laborer | Maryland |
| 48 | Edgar Lynn Seay | 32 | Head | Fireman | Arkansas |
| 49 | Mary Eli Seay | 24 | Wife | — | Maryland |
| 50 | Bella Patricia Seay | 3 | Daughter | — | Wash D.C. |
| 51 | Mary Lou Seay | 1 | Daughter | — | Wash D.C. |
| 52 | Chas Bowman | 23 | Brother-in-law | Apprentice Printer | Maryland |
| 53 | Margaret Mary Bowman | 32 | Sister-in-law | Manageress | Maryland |
| 54 | Patti C Seay | 55 | Mother | — | Mississippi |
| 55 | Willis Poole | 57 | Head | Carpenter | Maryland |
| 56 | Elizabeth Poole | 54 | Wife | — | Maryland |
| 57 | Katherine Poole | 14 | Daughter | — | Maryland |
| 58 | Harvey Thompson | 48 | Head | Farm Operator | Maryland |
| 59 | Gladys Thompson | 41 | Wife | — | Maryland |
| 60 | Henry Thompson THIS PERSON | 21 | Son | Dairy Worker | Maryland |
| 61 | Claude Thompson | 18 | Son | Farm Hand | Maryland |
| 62 | Fanny Mary Thompson | 16 | Daughter | — | Maryland |
| 63 | Wm S Beall | 36 | Head | Bookkeeper | Maryland |
| 64 | Nelly W Beall | 34 | Wife | — | Maryland |
| 65 | Alma Nealane | 17 | Boarder | — | Maryland |
| 66 | Virginia Kemp | 15 | Boarder | — | Maryland |
| 67 | Maurice Yates | 62 | Head | Farm Operator | Maryland |
| 68 | Cora V Yates | 61 | Wife | — | Maryland |
| 69 | Willis Watkins | 38 | Head | Stock Clerk | Maryland |
| 70 | Marjorie Watkins | 35 | Wife | — | Maryland |
| 71 | Cecil Almutt | 40 | Head | Truck Driver | Maryland |
| 72 | Hazel Almutt | 40 | Wife | — | Maryland |
| 73 | Kenneth Almutt | 16 | Son | — | Maryland |
| 74 | Margaret Almutt | 14 | Daughter | — | Maryland |
| 75 | Atwood Young | 57 | Head | Farm Operator | Maryland |
| 76 | Lenora Young | 55 | Wife | — | Maryland |
| 77 | Arnold Watkins | 38 | Head | Farm Cropper | Maryland |
| 78 | Mildred Watkins | 31 | Wife | — | Maryland |
| 79 | Hamilton Watkins | 14 | Son | — | Maryland |
| 80 | Samuel T Snapp | 57 | Head | Carpenter | Virginia |
Related Census Records
Pedigree Summary
Henry + 2 siblings
Gen 1 · 3 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)