RD
Robert Davis — 1940 US Census Record
Model Tree available1940 United States Federal Census · Washington-County, Maryland
Our Model Tree links this Robert Davis across the 1920, 1930 and 1940 US Censuses in Washington-County, Maryland (XGBoost, ~Confirmed), with identified parents William & William — first a son (b.~1918), then head of a 4-person household.
Age 22
b. ~1918
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Washington-County, Maryland |
| Surname | Davis |
| Given Name | Robert A B |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Dist 12 |
| 1935 Residence (County) | Washington |
| Additional Details | |
| Highest Grade | C 4 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Township / Ward | Dist 12 |
| 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 Robert | Age | Birth yr |
|---|---|---|---|---|
| William Davis | Head | — | 66 | ~1874 |
| Robert Davis | Son | — | 22 | ~1918 |
| Hiram Davis | Son | — | 24 | ~1916 |
| Sarah Davis | Spouse | — | 53 | ~1887 |
Census Appearances
1920
Washington, Maryland
Son, age 1
Washington, Maryland · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Robert W. |
| 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
Washington, Maryland
Son, age 12
Washington, Maryland · implied b. ~1918 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Davis |
| Given Name | Robert W |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| 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
Washington-County, Maryland
Son, age 22
Washington-County, Maryland · implied b. ~1918 — 4 household members
| Surname | Davis |
| Given Name | Robert A B |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Dist 12 |
| 1935 Residence (County) | Washington |
| Highest Grade | C 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 Robert Davis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father William Davis (~0.92 confidence) and father William Davis (~0.92 confidence) and father William Davis (~0.92 confidence) and mother Sarah Davis (~0.92 confidence) and mother Sadie Davis (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Davis
b. ~1874
Source father
● Household
· direct · ~0.92
Father
William Davis
b. ~1884
Source father
● Household
· direct · ~0.92
Father
William Davis
b. ~1884
Source father
● Household
· direct · ~0.92
Mother
Sarah Davis
b. ~1887
Source mother
● Household
· direct · ~0.92
Mother
Sadie Davis
b. ~1887
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Davis
Son · 1940 · age 22 · b. ~1918 · Maryland
★ You are viewing this record
Sibling
Hiram Davis
Sibling · 1940 · age 24
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 — Washington-County, Maryland
Open full size
1940 US Federal Census — Washington-County, Maryland
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01562-00384)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Joseph Perkenbaugh | 31 | Head | Salesman | Maryland |
| 2 | Carrie M Perkenbaugh | 30 | Daughter | — | Maryland |
| 3 | Walter R Greene | 42 | Head | Operator | Maryland |
| 4 | Elsie Greene | 40 | Wife | — | Maryland |
| 5 | Charles Greene | 21 | Son | Dofer | Maryland |
| 6 | Mildred Greene | 14 | Daughter | — | Maryland |
| 7 | John W Sparrow | 60 | Head | Retired Operator | West Virginia |
| 8 | A Pearl Sparrow | 60 | Wife | — | Maryland |
| 9 | Ida Ruth Sparrow | 17 | Daughter | — | Maryland |
| 10 | Charles R Gorsuch | 28 | Head | Laborer | Maryland |
| 11 | Ethel Gorsuch | 27 | Wife | — | West Virginia |
| 12 | Nelson Gorsuch | 9 | Son | — | Maryland |
| 13 | Virginia Gorsuch | 7 | Daughter | — | Maryland |
| 14 | Marvin Gorsuch | 3 | Son | — | Maryland |
| 15 | Lester Gorsuch | 1 | Son | — | Maryland |
| 16 | Faza G Cross | 63 | Head | — | Maryland |
| 17 | Russell Rodgers | 36 | Head | Laborer | West Virginia |
| 18 | Hazel E Rodgers | 33 | Wife | — | Pennsylvania |
| 19 | William Fittro | 27 | Head | Knitter | Virginia |
| 20 | Blanche Fittro | 22 | Wife | — | Maryland |
| 21 | Mary Gaylor | 16 | Sister | — | Maryland |
| 22 | Claude Gaylor | 14 | Brother | — | Maryland |
| 23 | Benjamin B Shank | 72 | Head | Labor | Maryland |
| 24 | Mary E Shank | 76 | Wife | — | Maryland |
| 25 | Alfred B Petifils | 34 | Head | Foreman | Virginia |
| 26 | Pauline Petifils | 30 | Wife | — | Virginia |
| 27 | Maurice Petifils | 12 | Son | — | Virginia |
| 28 | William Petifils | 11 | Son | — | Virginia |
| 29 | Preston Petifils | 5 | Son | — | Virginia |
| 30 | Mackey Rutherford | 50 | Head | Stationary Engineer | Maryland |
| 31 | Nellie R Rutherford | 42 | Wife | — | Maryland |
| 32 | Louise A B Rutherford | 19 | Daughter | Clerk | Maryland |
| 33 | Valentine Rutherford | 14 | Son | — | Maryland |
| 34 | Marietta Rutherford | 11 | Daughter | — | Maryland |
| 35 | Carl Rutherford | 8 | Son | — | Maryland |
| 36 | William H Davis | 66 | Head | Operator | Maryland |
| 37 | Sarah Z Davis | 53 | Wife | — | Maryland |
| 38 | Hiram A B Davis | 24 | Son | — | Maryland |
| 39 | Robert A B Davis THIS PERSON | 22 | Son | — | Maryland |
| 40 | Chas Fittro | 62 | Head | Operator | Virginia |
Pedigree Summary
Robert + 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)