RC
Richard Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · District-Of-Columbia-County, District of Columbia
Our Model Tree links this Richard Clark across the 1920, 1930 and 1940 US Censuses in District-Of-Columbia-County, District of Columbia (XGBoost, ~Confirmed) — first a head (b.~1898), then head of a 3-person household.
Age 42
b. ~1898
Male
Head
Born: Maryland
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | District-Of-Columbia-County, District of Columbia |
| Surname | Clark |
| Given Name | Richard |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Washington |
| 1935 Residence (County) | Washington D.C. |
| Additional Details | |
| Occupation | Machinist |
| Industry | Navy Yard |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 2195 |
| Highest Grade | 8 |
| 1935 Residence | Same place |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
| Occupation | Machinist |
| Township / Ward | Washington |
| Est. Birth Year | ~1898 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Richard | Age | Birth yr |
|---|---|---|---|---|
| V Clark | Daughter | — | 16 | ~1924 |
| Richard Clark | Head | — | 42 | ~1898 |
| Margaret Clark | Spouse | — | 42 | ~1898 |
Census Appearances
1920
None, District …
Other, age 21
None, District of Columbia · implied b. ~1899 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Richard S. |
| Relationship to Head | Grandson |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Maryland |
| Father's Birthplace | Virginia |
| Mother's Birthplace | Canada |
| Occupation | Machinist |
| Industry | Machine Co. |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1930
None, District …
Other, age 32
None, District of Columbia · implied b. ~1898 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Richard S. |
| Relationship to Head | Son-in-law |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Maryland |
| Age at First Marriage | 25 |
| Father's Birthplace | Ireland |
| Mother's Birthplace | Canada |
| Occupation | Machinist |
| Industry | U.S. Govt |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | WW |
| Veteran | Yes |
| Birth State | Maryland |
| Birth Country | United States |
| Birthplace (normalized) | maryland |
1940
District-Of-Columbia-County, District …
Head, age 42
District-Of-Columbia-County, District of Columbia · implied b. ~1898 — 3 household members
| Surname | Clark |
| Given Name | Richard |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 42 |
| Marital Status | Married |
| Birthplace | Maryland |
| 1935 Residence (City) | Washington |
| 1935 Residence (County) | Washington D.C. |
| Occupation | Machinist |
| Industry | Navy Yard |
| Class of Worker | GW |
| Hours Worked | 40 |
| Income (1939) | 2195 |
| Highest Grade | 8 |
| 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 Richard Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Richard Clark
Head · 1940 · age 42 · b. ~1898 · District of Columbia
★ 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 — District-Of-Columbia-County, District of Columbia
Open full size
1940 US Federal Census — District-Of-Columbia-County, District of Columbia
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00560-00890)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Clara A. Lindsay | 50 | Head | — | Washington D.C. |
| 2 | John J. Lindsay | 16 | Son | — | Washington D.C. |
| 3 | Mary Lindsay | 10 | Daughter | — | Washington D.C. |
| 4 | Annetta P. Goeppner | 37 | Head | Teacher | Massachusetts |
| 5 | Mary Pickering | 64 | Lodger | Clerk | Virginia |
| 6 | John Mcpherson | 73 | Lodger | — | Scotland |
| 7 | Mary M. Schmidt | 68 | Head | — | Washington D.C. |
| 8 | Mary M. Schmidt | 43 | Daughter | Financial Recording Clerk | Washington D.C. |
| 9 | Oliver J. Schmidt | 40 | Son | Senior Clerk | Washington D.C. |
| 10 | Irene K. Schmidt | 40 | Daughter | Adjudicating Clerk | Washington D.C. |
| 11 | Ruby A. Law | 33 | Lodger | Statistical Clerk | Mississippi |
| 12 | Frederick H. Wheeler | 52 | Head | Traffic Manager | Washington D.C. |
| 13 | Carrie V. Wheeler | 51 | Wife | Cashier | Washington D.C. |
| 14 | Mary E. Wheeler | 20 | Daughter | File Clerk | Washington D.C. |
| 15 | Eleanor H. Wheeler | 19 | Daughter | File Clerk | Washington D.C. |
| 16 | Frederick Jr. Wheeler | 17 | Son | — | Washington D.C. |
| 17 | Annie Bozeman | 60 | Housekeeper | Saleswoman | Maryland |
| 18 | Richard Clark THIS PERSON | 42 | Head | Machinist | Maryland |
| 19 | Margaret L. Clark | 42 | Wife | — | Washington D.C. |
| 20 | V. Adele Clark | 16 | Daughter | — | Washington D.C. |
| 21 | Helen April | 40 | Head | General Clerical Worker | Washington D.C. |
| 22 | Reuben April | 14 | Son | — | Washington D.C. |
| 23 | Jeanne J. April | 13 | Daughter | — | Washington D.C. |
| 24 | Harry J. Hancock | 29 | Head | Book Binder | Washington D.C. |
| 25 | Grace K. Hancock | 27 | Wife | Secretary | Virginia |
| 26 | Harry J. Jr. Hancock | 6 | Son | — | Washington D.C. |
| 27 | Sidney Migdal | 39 | Head | Tailor | Poland |
| 28 | Jennie Migdal | 28 | Wife | — | Russia |
| 29 | Bertha Migdal | 19 | Daughter | New Worker | Germany |
| 30 | Evelyn Migdal | 12 | Daughter | — | Washington D.C. |
| 31 | Alice Migdal | 5 | Daughter | — | Washington D.C. |
| 32 | Augustus Kidwell | 23 | Head | Worker | Washington D.C. |
| 33 | Virginia Kidwell | 19 | Wife | — | Maryland |
| 34 | C. Burgess Kidwell | 3 | Son | — | Washington D.C. |
| 35 | Max Nimety | 40 | Head | Grocer | Russia |
| 36 | Jean Nimety | 38 | Wife | — | Russia |
| 37 | Irene Nimety | 15 | Daughter | — | Washington D.C. |
| 38 | Jack J. Nimety | 10 | Son | — | Washington D.C. |
| 39 | Stanley L. Nimety | 7 | Son | — | Washington D.C. |
| 40 | Jeremiah Regan | 62 | Head | Mechanic | Washington D.C. |
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)