DC
David Clark — 1940 US Census Record
Model Tree available1940 United States Federal Census · Oklahoma-County, Oklahoma
Our Model Tree links this David Clark across the 1920, 1930 and 1940 US Censuses in Oklahoma-County, Oklahoma (XGBoost, ~Confirmed), with identified parents Alva & Ole — first a head (b.~1913), then head of a 3-person household.
Age 27
b. ~1913
Male
Head
Born: Oklahoma
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Oklahoma-County, Oklahoma |
| Surname | Clark |
| Given Name | David H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Oklahoma |
| 1935 Residence (City) | Oklahoma City |
| 1935 Residence (County) | Oklahoma |
| Additional Details | |
| Occupation | Credit Man |
| Industry | Retail Auto Co |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1800 |
| Highest Grade | H 4 |
| 1935 Residence | Same Place |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
| Occupation | Credit Man |
| Township / Ward | Oklahoma City |
| Est. Birth Year | ~1913 |
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 David | Age | Birth yr |
|---|---|---|---|---|
| David Clark | Head | — | 27 | ~1913 |
| Danny Clark | Son | — | 2 | ~1938 |
| Melba Clark | Spouse | — | 27 | ~1913 |
Census Appearances
1920
Oklahoma, Oklahoma
Son, age 6
Oklahoma, Oklahoma · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Daniel H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| Father's Birthplace | Texas |
| Mother's Birthplace | Kansas |
| Can Read | No |
| Can Write | No |
| Speaks English | Yes |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
1930
Oklahoma, Oklahoma
Son, age 16
Oklahoma, Oklahoma · implied b. ~1914 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Daniel H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| Father's Birthplace | Texas |
| Mother's Birthplace | Kansas |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
1940
Oklahoma-County, Oklahoma
Head, age 27
Oklahoma-County, Oklahoma · implied b. ~1913 — 3 household members
| Surname | Clark |
| Given Name | David H. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 27 |
| Marital Status | Married |
| Birthplace | Oklahoma |
| 1935 Residence (City) | Oklahoma City |
| 1935 Residence (County) | Oklahoma |
| Occupation | Credit Man |
| Industry | Retail Auto Co |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 1800 |
| Highest Grade | H 4 |
| 1935 Residence | Same Place |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
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 David Clark across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Alva Clark (~0.92 confidence) and father Ole Clark (~0.92 confidence) and mother Iva Clark (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Alva Clark
b. ~1888
Source father
● Household
· direct · ~0.92
Father
Ole Clark
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Iva Clark
b. ~1889
Source mother
● Household
· direct · ~0.92
This person
Anchor record
David Clark
Head · 1940 · age 27 · b. ~1913 · Oklahoma
★ 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 — Oklahoma-County, Oklahoma
Open full size
1940 US Federal Census — Oklahoma-County, Oklahoma
Page Contents
38 people indexed on this census page (nara:1940:m-t0627-03343-00531)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Fay Foster | 38 | Wife | — | Texas |
| 42 | Cleota Mcclure | 20 | Daughter | — | Oklahoma |
| 43 | J. A. Mcclure | 21 | Son-in-law | Warehouseman | Oklahoma |
| 44 | Frank Sawyer | 13 | Lodger | — | Oklahoma |
| 46 | Oscar H. Mcbrayer | 70 | Head | Poultryman | Georgia |
| 47 | Belle Mcbrayer | 61 | Wife | — | Wisconsin |
| 48 | Harry Mcguire | 31 | Head | Postal Clerk | Oklahoma |
| 49 | Elizabeth Mcguire | 32 | Wife | — | Oklahoma |
| 50 | Clara Ann Mcguire | 8 | Daughter | — | Oklahoma |
| 51 | James E. Mcguire | 7 | Son | — | Oklahoma |
| 52 | Mary E. Mcguire | 4 | Daughter | — | Oklahoma |
| 53 | Earnest Mcguire | 2 | Son | — | Oklahoma |
| 54 | John Patrick Mcguire | 1 | Son | — | Oklahoma |
| 55 | Harry W. Luren | 48 | Head | Estimator Printing | Texas |
| 56 | Grace G. Luren | 46 | Wife | — | Oklahoma |
| 57 | Harry W. Jr. Luren | 15 | Son | — | Texas |
| 59 | John Callum | 28 | Head | Salesman | Oklahoma |
| 60 | Mary E. Callum | 27 | Wife | — | Oklahoma |
| 61 | Fred Callum | 1 | Son | — | Oklahoma |
| 62 | Wallen Frank | 31 | Head | Billing Clerk | Arkansas |
| 63 | Mabel Frank | 29 | Wife | Stenographer | Texas |
| 64 | Mary Sue Frank | 4 | Daughter | — | Oklahoma |
| 65 | Ruth Ivy | 19 | Lodger | — | Oklahoma |
| 66 | Wesley Jones | 38 | Head | Parts Manager | Missouri |
| 67 | Lucy Mae Jones | 28 | Wife | — | Kansas |
| 68 | Betty Jane Jones | 10 | Daughter | — | Oklahoma |
| 69 | Wesley F. Jones | 4 | Son | — | Oklahoma |
| 70 | William Chandler | 27 | Head | Draftsman | Missouri |
| 71 | Alpha Chandler | 26 | Wife | — | Oklahoma |
| 72 | Robert Chandler | 2 | Son | — | Oklahoma |
| 73 | David H. Clark THIS PERSON | 27 | Head | Credit Man | Oklahoma |
| 74 | Melba H. Clark | 27 | Wife | — | Oklahoma |
| 75 | Danny K. Clark | 2 | Son | — | Oklahoma |
| 76 | H. S. Taylor | 32 | Head | City Policeman | Oklahoma |
| 77 | Cleo L. Taylor | 33 | Wife | — | Oklahoma |
| 78 | William Taylor | 13 | Son | — | Oklahoma |
| 79 | Howard J. Taylor | 3 | Son | — | Oklahoma |
| 80 | Paul A. Shirely | 38 | Head | Department Head Procurement | Missouri |
Pedigree Summary
David
Gen 1 · 3 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)