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Robert Washington — 1940 US Census Record
Model Tree available1940 United States Federal Census · Frederick-County, Maryland
Our Model Tree links this Robert Washington across the 1910, 1920, 1930 and 1940 US Censuses in Frederick-County, Maryland (XGBoost, ~Confirmed), with identified parents Allen & Jesse — first a son (b.~1905), then head of a 2-person household.
Age 35
b. ~1905
Male
Son
Born: Maryland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Frederick-County, Maryland |
| Surname | Washington |
| Given Name | Robert L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 35 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 11 |
| 1935 Residence (County) | Frederick |
| Additional Details | |
| Occupation | Track laborer |
| Industry | Steam RR |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 175 |
| Highest Grade | No 4 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Track Laborer |
| Township / Ward | Election District 11 |
| Est. Birth Year | ~1905 |
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.
2 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Washington | Son | — | 35 | ~1905 |
| Margaret Washington | Head | — | 65 | ~1875 |
Census Appearances
1910
Frederick, Maryland
Son, age 8
Frederick, Maryland · implied b. ~1902 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Washington |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1920
Frederick, Maryland
Son, age 17
Frederick, Maryland · implied b. ~1903 — 11 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Washington |
| Given Name | Robert L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
Frederick, Maryland
Son, age 26
Frederick, Maryland · implied b. ~1904 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Washington |
| Given Name | Robert L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Maryland |
| Occupation | Laborer |
| Industry | Country Club |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
Frederick-County, Maryland
Son, age 35
Frederick-County, Maryland · implied b. ~1905 — 2 household members
| Surname | Washington |
| Given Name | Robert L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 35 |
| Marital Status | Single |
| Birthplace | Maryland |
| 1935 Residence (City) | Election District 11 |
| 1935 Residence (County) | Frederick |
| Occupation | Track laborer |
| Industry | Steam RR |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 175 |
| Highest Grade | No 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 Washington across 4 US Census years (1910, 1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Allen Washington (~0.92 confidence) and father Jesse Washington (~0.92 confidence) and father John Washington (~0.92 confidence) and mother Clara Washington (~0.92 confidence) and mother Ellen Washington (~0.92 confidence) and mother Margaret Washington (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Allen Washington
b. ~1876
Source father
● Household
· direct · ~0.92
Father
Jesse Washington
b. ~1875
Source father
● Household
· direct · ~0.92
Father
John Washington
b. ~1859
Source father
● Household
· direct · ~0.92
Mother
Clara Washington
b. ~1874
Source mother
● Household
· direct · ~0.92
Mother
Ellen Washington
b. ~1874
Source mother
● Household
· direct · ~0.92
Mother
Margaret Washington
b. ~1875
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Washington
Son · 1940 · age 35 · b. ~1905 · Maryland
★ You are viewing this record
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
41 people indexed on this census page (nara:1940:m-t0627-01548-00022)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | C. D. Hefner | 48 | Head | Farmer | Maryland |
| 2 | Sara Hefner | 40 | Wife | — | Maryland |
| 3 | Daughter Hefner | 2 | Daughter | — | Maryland |
| 4 | Charles M. Fry | 66 | Head | Owner Operator | Maryland |
| 5 | Mary A. Fry | 58 | Wife | — | Maryland |
| 6 | James T. Hanes | 29 | Head | Farm Laborer | Maryland |
| 7 | Viola V. Hanes | 26 | Wife | — | Maryland |
| 8 | Robert E. Hanes | 6 | Son | — | Maryland |
| 9 | Jessie H. Crist | 51 | Head | Farm Laborer | Virginia |
| 10 | Blair H. Titus | 33 | Head | Owner Operator | Maryland |
| 11 | Virginia S. Titus | 30 | Wife | — | Virginia |
| 12 | Matilda C. Titus | 9 | Daughter | — | Maryland |
| 13 | William H. Hefner | 57 | Head | Laborer | Virginia |
| 14 | Annie E. Hefner | 44 | Wife | — | Frederick Co. Md |
| 15 | Margaret Hefner | 17 | Daughter | — | Maryland |
| 16 | William H. Hefner | 11 | Son | — | Maryland |
| 17 | Harry E. Hefner | 7 | Son | — | Maryland |
| 18 | John H. Hefner | 4 | Son | — | Maryland |
| 19 | Geo. E. Green | 52 | Head | Laborer | Maryland |
| 20 | Margaret J. Green | 51 | Wife | — | Pennsylvania |
| 21 | Joseph H. Washington | 36 | Head | Truck Laborer | Maryland |
| 22 | Anna S. Washington | 32 | Wife | — | Maryland |
| 23 | Joseph J. Washington | 13 | Son | — | Maryland |
| 24 | Hazel V. Washington | 11 | Daughter | — | Maryland |
| 25 | Arthur Cumberland | 74 | Head | Laborer | Maryland |
| 26 | Annie E. Cumberland | 70 | Wife | One Boarder | Maryland |
| 27 | Drexel Brunner | 28 | Lodger | Teacher | Frederick Co. Md |
| 28 | Chas. De Lauter | 16 | Son in law | New Worker | Maryland |
| 29 | Marshall Allen | 35 | Head | Laborer | Maryland |
| 30 | Mildred Allen | 21 | Wife | — | Pennsylvania |
| 31 | Robert N. Allen | 2 | Son | — | Maryland |
| 32 | Marshal Jr. Allen | 1 | Son | — | Maryland |
| 33 | Louis F. Young | 40 | Head | Laborer | Maryland |
| 34 | Ardella V. Young | 40 | Wife | — | Maryland |
| 35 | Ernestine Young | 12 | Daughter | — | Maryland |
| 36 | Louella A. Young | 6 | Daughter | — | Maryland |
| 37 | Shirley A. Young | 2 | Daughter | — | Maryland |
| 38 | Margaret Washington | 65 | Head | — | Maryland |
| 39 | Robert L. Washington THIS PERSON | 35 | Son | Track Laborer | Maryland |
| 40 | Enos E. B. Zully | 73 | Head | — | Frederick Co. Md |
| 41 | George Higgins | 71 | Head | Track Laborer | Maryland |
Related Census Records
Pedigree Summary
Robert
Gen 1 · 6 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)