RC
Richard Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · Alameda-County, California
Our Model Tree links this Richard Clark across the 1920, 1930 and 1940 US Censuses in Alameda-County, California (XGBoost, ~Confirmed), with identified parents Matilda & Richard — first a head (b.~1908), then head of a 3-person household.
Age 32
b. ~1908
Male
Head
Born: Louisiana
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Alameda-County, California |
| Surname | Clark |
| Given Name | Richard S. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Louisiana |
| 1935 Residence (City) | Oakland City |
| 1935 Residence (County) | Alameda |
| Additional Details | |
| Occupation | Salesman |
| Industry | Life Insurance |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1200 |
| Highest Grade | C 3 |
| 1935 Residence | Same Place |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
| Occupation | Salesman |
| Township / Ward | Oakland City |
| Est. Birth Year | ~1908 |
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 |
|---|---|---|---|---|
| Laura Clark | Daughter | — | 5 | ~1935 |
| Richard Clark | Head | — | 32 | ~1908 |
| M Clark | Spouse | — | 30 | ~1910 |
Census Appearances
1920
Alameda, California
Son, age 14
Alameda, California · implied b. ~1906 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Richard S |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Louisiana |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1930
Alameda, California
Son, age 24
Alameda, California · implied b. ~1906 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Richard S. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Louisiana |
| Father's Birthplace | Louisiana |
| Mother's Birthplace | Louisiana |
| Occupation | Deliveryman |
| Industry | Retail Grocery |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
1940
Alameda-County, California
Head, age 32
Alameda-County, California · implied b. ~1908 — 3 household members
| Surname | Clark |
| Given Name | Richard S. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 32 |
| Marital Status | Married |
| Birthplace | Louisiana |
| 1935 Residence (City) | Oakland City |
| 1935 Residence (County) | Alameda |
| Occupation | Salesman |
| Industry | Life Insurance |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 1200 |
| Highest Grade | C 3 |
| 1935 Residence | Same Place |
| Birth State | Louisiana |
| Birth Country | United States |
| Birthplace (normalized) | louisiana |
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. Identified parents: mother Matilda Clark (~0.92 confidence) and father Richard Clark (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Matilda Clark
b. ~1877
Source mother
● Household
· direct · ~0.92
Father
Richard Clark
b. ~1877
Source father
● Household
· direct · ~0.92
This person
Anchor record
Richard Clark
Head · 1940 · age 32 · b. ~1908 · California
★ 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 — Alameda-County, California
Open full size
1940 US Federal Census — Alameda-County, California
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00442-00215)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Richard S. Clark THIS PERSON | 32 | Head | Salesman | Louisiana |
| 2 | M. Leona Clark | 30 | Wife | — | California |
| 3 | Laura M. Clark | 5 | Daughter | — | California |
| 4 | Margaret Evans | 73 | Head | — | California |
| 5 | Vilho Puikko | 33 | Head | Longshoreman | Finland |
| 6 | June V. Puikko | 19 | Wife | — | Washington |
| 7 | Alvern Freudendahl | 33 | Head | Musician | California |
| 8 | Eliana Freudendahl | 27 | Wife | — | California |
| 9 | Gary L. Freudendahl | 5 | Son | — | California |
| 10 | Charlie S. Hill | 62 | Head | — | Minn |
| 11 | Lena D. Hill | 60 | Wife | — | Nebraska |
| 12 | Willie Gember | 52 | Brother-in-law | Billiard Parlor | Nebraska |
| 13 | Emma Trohal | 78 | Lodger | — | Illinois |
| 14 | Frank Miller | 51 | Head | Const. Foreman | Mass |
| 15 | Maude B. Miller | 53 | Wife | — | California |
| 16 | Hester Roerber | 41 | Head | Housework | Nebraska |
| 17 | Mary Roerber | 21 | Daughter | Housework | Nebraska |
| 18 | Robert Ab. Roerber | 19 | Son | Tree Planting | Nebraska |
| 19 | Irene Roerber | 11 | Daughter | — | Nebraska |
| 20 | Leslie Olsen | 23 | Head | Valve Tester | California |
| 21 | Ada Olsen | 24 | Wife | — | California |
| 22 | George Bushtey | 7 | Step-son | — | California |
| 23 | William Stoppelworth | 57 | Head | Route Manager | Missouri |
| 24 | Elizabeth Stoppelworth | 51 | Wife | — | Missouri |
| 25 | Mary Kuebler | 83 | Mother-in-law | — | Missouri |
| 26 | Arthur Enright | 42 | Head | Plumber | New York |
| 27 | Elisa D. Enright | 45 | Wife | — | Nebraska |
| 28 | Frank Brumley | 40 | Head | Brakeman | Kansas |
| 29 | Grace Tralla | 40 | Housekeeper | Housekeeper | Illinois |
| 30 | Anthony Tralla | 16 | Housekeeper's Son | — | California |
| 31 | Patricia Bond | 29 | Head | Switchboard Op | Mexico |
| 32 | Norma Sue Bond | 5 | Daughter | — | Texas |
| 33 | Raymond Howard | 39 | Head | Painter | Oklahoma |
| 34 | Esther Howard | 34 | Wife | — | California |
| 35 | Raymond Jr. Howard | 12 | Son | — | California |
| 36 | George Pa Padakos | 26 | Head | Elevator Op. | Missouri |
| 37 | Anna R. Pa Padakos | 28 | Wife | — | Missouri |
| 38 | William R. Bowers | 8 | Son | — | Missouri |
| 39 | Charles Dreyer | 26 | Brother-in-law | Plasterer | Missouri |
| 40 | Leonard Moore | 40 | Head | Electrician | New York |
Pedigree Summary
Richard
Gen 1 · 2 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)