EC
Eugene Clark — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Yavapai-County, Arizona
Our Model Tree links this Eugene Clark across the 1930 and 1940 US Censuses in Yavapai-County, Arizona (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 7-person household.
Age 14
b. ~1926
Male
Son
Born: Arizona
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Yavapai-County, Arizona |
| Surname | Clark |
| Given Name | Eugene |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Arizona |
| 1935 Residence (City) | Jerome (part of) |
| 1935 Residence (County) | Yavapai |
| Additional Details | |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
| Township / Ward | Jerome Part Of |
| Est. Birth Year | ~1926 |
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.
7 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Eugene | Age | Birth yr |
|---|---|---|---|---|
| Virginia Clark | Daughter | — | 24 | ~1916 |
| Clara Clark | Spouse | — | 42 | ~1898 |
| Jack Clark | Son | — | 21 | ~1919 |
| Imogene Clark | Daughter | — | 4 | ~1936 |
| Walter Clark | Head | — | 47 | ~1893 |
| Beatrice Clark | Daughter | — | 17 | ~1923 |
| Eugene Clark | Son | — | 14 | ~1926 |
Census Appearances
1930
Yavapai, Arizona
Son, age 4
Yavapai, Arizona · implied b. ~1926 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Clark |
| Given Name | Eugene |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Arizona |
| Father's Birthplace | Georgia |
| Mother's Birthplace | Kentucky |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
1940
Yavapai-County, Arizona
Son, age 14
Yavapai-County, Arizona · implied b. ~1926 — 7 household members
| Surname | Clark |
| Given Name | Eugene |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Arizona |
| 1935 Residence (City) | Jerome (part of) |
| 1935 Residence (County) | Yavapai |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Arizona |
| Birth Country | United States |
| Birthplace (normalized) | arizona |
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 Eugene Clark across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Eugene Clark
Son · 1940 · age 14 · b. ~1926 · Arizona
★ You are viewing this record
Sibling
Jack Clark
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Imogene Clark
Sibling · 1940 · age 4
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Beatrice Clark
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Virginia Clark
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 — Yavapai-County, Arizona
Open full size
1940 US Federal Census — Yavapai-County, Arizona
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00114-00621)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frank Lee Miles | 57 | Head | Drill Sharpener | Washington |
| 2 | Maude Evelyn Miles | 52 | Wife | — | Kentucky |
| 3 | Pauline Frances Miles | 20 | Daughter | — | Arizona |
| 4 | Malcolm Lee Miles | 18 | Son | — | Arizona |
| 5 | Grace Evelyn Miles | 15 | Daughter | — | Arizona |
| 6 | Walter J. Clark | 47 | Head | Boiler Maker | Georgia |
| 7 | Clara Clark | 42 | Wife | — | Kentucky |
| 8 | Virginia Clark | 24 | Daughter | Clerk | Oklahoma |
| 9 | Jack Clark | 21 | Son | 520 | Oklahoma |
| 10 | Beatrice Clark | 17 | Daughter | — | Oklahoma |
| 11 | Eugene Clark THIS PERSON | 14 | Son | — | Arizona |
| 12 | Imogene Clark | 4 | Daughter | — | Arizona |
| 13 | Rollie Faulk | 31 | Head | Miner | Colorado |
| 14 | Maybelle Faulk | 32 | Wife | — | Arizona |
| 15 | Naomi Louise Faulk | 8 | Daughter | — | Arizona |
| 16 | Larry Eugene Faulk | 1 | Son | — | Arizona |
| 17 | John B. Medigovich | 22 | Head | Miner | Arizona |
| 18 | Darlyne Medigovich | 20 | Wife | — | Arizona |
| 19 | Caroll Lee Medigovich | 3 | Son | — | Arizona |
| 20 | Nancy Ann Medigovich | 2 | Daughter | — | Arizona |
| 21 | Ambrose G. Mcdonald | 30 | Head | Office Clerk | Montana |
| 22 | Bettie Mcdonald | 29 | Wife | — | Arizona |
| 23 | John Ambrose Mcdonald | 2 | Son | — | Arizona |
| 24 | Guy Robinson | 48 | Head | Drill Sharpener | Texas |
| 25 | Mattie L. Robinson | 43 | Wife | — | Alabama |
| 26 | Madeline Robinson | 20 | Daughter | Stenographer | Arizona |
| 27 | Leonard Robinson | 13 | Son | — | Arizona |
| 28 | Nellie Jean Robinson | 9 | Daughter | — | Arizona |
| 29 | William Vierthaler | 34 | Head | Miner | Arizona |
| 30 | Jean Vierthaler | 25 | Wife | — | Colorado |
| 31 | Jean Vierthaler | 2 | Daughter | — | Arizona |
| 32 | Alvin H. Griffith | 40 | Head | Welder | America |
| 33 | Mary Griffith | 44 | Wife | — | Kentucky |
| 34 | Morris Thomas Griffith | 14 | Son | — | Arizona |
| 35 | Richard Earl Martyn | 26 | Head | Mine Supervisor | Arizona |
| 36 | Virginia Kay Martyn | 19 | Wife | — | Kentucky |
| 37 | Frances Earlene Martyn | 1 | Daughter | — | Arizona |
| 38 | George Reese | 25 | Head | Miner | Arizona |
| 39 | Mattie Reese | 63 | Mother | — | Texas |
| 40 | Walter Bethel Maulin | 53 | Head | Office Clerk | Texas |
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)