HT
Harry Thomas — 1940 US Census Record
Model Tree available1940 United States Federal Census · Charles-County, Maryland
Our Model Tree links this Harry Thomas across the 1920, 1930 and 1940 US Censuses in Charles-County, Maryland (XGBoost, ~Confirmed), with identified parents Thomas & Alverda — first a son (b.~1920), then head of a 8-person household.
Age 20
b. ~1920
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Charles-County, Maryland |
| Surname | Thomas |
| Given Name | Harry E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | 7 District |
| 1935 Residence (County) | Charles |
| Additional Details | |
| Occupation | Laborer |
| Industry | Farmwork |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 200 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Laborer |
| Township / Ward | 7 District |
| Est. Birth Year | ~1920 |
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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Harry | Age | Birth yr |
|---|---|---|---|---|
| Minnie Thomas | Daughter | — | 32 | ~1908 |
| Ernestine Thomas | Daughter | — | 16 | ~1924 |
| Shirley Thomas | Daughter | — | 4 | ~1936 |
| Elva Thomas | Daughter | — | 23 | ~1917 |
| Margaret Thomas | Daughter | — | 6 | ~1934 |
| Carrie Thomas | Head | — | 48 | ~1892 |
| William Thomas | Son | — | 24 | ~1916 |
| Harry Thomas | Son | — | 20 | ~1920 |
Census Appearances
1920
Charles, Maryland
Son, age
Charles, Maryland · implied b. ~1920 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Harry E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Charles, Maryland
Son, age 11
Charles, Maryland · implied b. ~1919 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Harry |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | District Columbia |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Charles-County, Maryland
Son, age 20
Charles-County, Maryland · implied b. ~1920 — 8 household members
| Surname | Thomas |
| Given Name | Harry E. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | 7 District |
| 1935 Residence (County) | Charles |
| Occupation | Laborer |
| Industry | Farmwork |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 200 |
| Highest Grade | No 6 |
| 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 Harry Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Thomas Thomas (~0.84 confidence) and mother Alverda Thomas (~0.84 confidence) and mother Carrie Thomas (~0.92 confidence) and mother Carry Thomas (~0.92 confidence) and father Daniel Thomas (~0.92 confidence) and mother Carrie Thomas (~0.92 confidence). The pedigree spans 2 generations with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.89
Father
Thomas Thomas
b. ~1872
Source father>father
● Household
· direct · ~0.84
Mother
Alverda Thomas
b. ~1875
Source father>mother
● Household
· direct · ~0.84
Mother
Carrie Thomas
b. ~1888
Source mother
● Household
· direct · ~0.92
Mother
Carry Thomas
b. ~1890
Source mother
● Household
· direct · ~0.92
Father
Daniel Thomas
b. ~1891
Source father
● Household
· direct · ~0.92
Mother
Carrie Thomas
b. ~1892
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Harry Thomas
Son · 1940 · age 20 · b. ~1920 · Maryland
★ You are viewing this record
Sibling
Margaret Thomas
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ernestine Thomas
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elva Thomas
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Shirley Thomas
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
William Thomas
Sibling · 1940 · age 24
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Minnie Thomas
Sibling · 1940 · age 32
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 — Charles-County, Maryland
Open full size
1940 US Federal Census — Charles-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01546-00071)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Carrie Thomas | 48 | Head | — | Dist of Col. |
| 42 | Minnie Thomas | 32 | Daughter | — | Maryland |
| 43 | Elva Thomas | 23 | Daughter | Housework | Maryland |
| 44 | William F. Thomas | 24 | Son | Laborer | Maryland |
| 45 | Harry E. Thomas THIS PERSON | 20 | Son | Laborer | Maryland |
| 46 | Ernestine Thomas | 16 | Daughter | — | Maryland |
| 47 | Margaret Thomas | 6 | Daughter | — | Maryland |
| 48 | Shirley Thomas | 4 | Daughter | — | Maryland |
| 49 | Walter Franklin | 44 | Head | Farming | Maryland |
| 50 | Carroll B. Wedding | 47 | Head | Farming | Maryland |
| 51 | Lucile V. Wedding | 27 | Wife | — | Maryland |
| 52 | Wilfred B. Wedding | 22 | Son | Driver | Maryland |
| 53 | Viola Wedding | 11 | Daughter | — | Maryland |
| 54 | Carroll B. Jr. Wedding | 9 | Son | — | Maryland |
| 55 | John Wedding | 8 | Son | — | Maryland |
| 56 | Lester Wedding | 7 | Son | — | Maryland |
| 57 | Irene Wedding | 5 | Daughter | — | Maryland |
| 58 | Eleanor Wedding | 2 | Daughter | — | Maryland |
| 59 | Isaac C. Posey | 70 | Head | Farming | Maryland |
| 60 | Mary Posey | 66 | Wife | — | Maryland |
| 61 | Calbert Dent | 32 | Head | Laborer | Maryland |
| 62 | Louise Dent | 27 | Wife | — | Maryland |
| 63 | Irene Dent | 12 | Daughter | — | Maryland |
| 64 | Charlotte Dent | 11 | Daughter | — | Maryland |
| 65 | Lorraine Dent | 10 | Daughter | — | Maryland |
| 66 | Calbert E. Dent | 2 | Son | — | Maryland |
| 67 | Francis Simmons | 80 | Head | — | Maryland |
| 68 | Ollie Simmons | 48 | Son | Laborer | Maryland |
| 69 | Jane Simmons | 45 | Daughter-in-law | — | Maryland |
| 70 | Melvin Simmons | 21 | Son | Laborer | Maryland |
| 71 | Grover Simmons | 16 | Son | Laborer | Maryland |
| 72 | Alice Simmons | 10 | Daughter | — | Maryland |
| 73 | Thomas Simmons | 7 | Son | — | Maryland |
| 74 | Reginald Ward | 24 | Head | Laborer | Maryland |
| 75 | Ruby F. Ward | 18 | Wife | — | Maryland |
| 76 | Joseph L. Ward | 0 | Son | — | Maryland |
| 77 | John O. Ward | 26 | Head | Attendant | Maryland |
| 78 | Bertha J. Ward | 25 | Wife | — | Maryland |
| 79 | John F. Ward | 2 | Daughter | — | Maryland |
| 80 | John Ward | 50 | Head | Laborer | Maryland |
Related Census Records
Pedigree Summary
Harry + 6 siblings
Gen 1 · 4 parents
~0.92
Gen 2 · 2 grandparents
~0.84
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)