RC
Robert Curtis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Washington-County, Arkansas
Our Model Tree links this Robert Curtis across the 1930 and 1940 US Censuses in Washington-County, Arkansas (XGBoost, ~Confirmed) — first a son (b.~1926), then head of a 8-person household.
Age 14
b. ~1926
Male
Son
Born: Arkansas
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Washington-County, Arkansas |
| Surname | Curtis |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Arkansas |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Washington |
| Additional Details | |
| Highest Grade | No 9 |
| 1935 Residence | Arkansas |
| Birth State | Arkansas |
| Birth Country | United States |
| Birthplace (normalized) | arkansas |
| Township / Ward | Johnson Twp |
| 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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Alice Curtis | Daughter | — | 12 | ~1928 |
| Clayton Curtis | Son | — | 20 | ~1920 |
| Hermon Curtis | Son | — | 10 | ~1930 |
| Bryan Curtis | Head | — | 44 | ~1896 |
| Zatha Curtis | Spouse | — | 43 | ~1897 |
| Mary Curtis | Daughter | — | 6 | ~1934 |
| Calvin Curtis | Son | — | 16 | ~1924 |
| Robert Curtis | Son | — | 14 | ~1926 |
Census Appearances
1930
Washington, Arkansas
Son, age 4
Washington, Arkansas · implied b. ~1926 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Curtis |
| Given Name | Robert V. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Arkansas |
| Father's Birthplace | Arkansas |
| Mother's Birthplace | Iowa |
| Birth State | Arkansas |
| Birth Country | United States |
| Birthplace (normalized) | arkansas |
1940
Washington-County, Arkansas
Son, age 14
Washington-County, Arkansas · implied b. ~1926 — 8 household members
| Surname | Curtis |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Arkansas |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Washington |
| Highest Grade | No 9 |
| 1935 Residence | Arkansas |
| Birth State | Arkansas |
| Birth Country | United States |
| Birthplace (normalized) | arkansas |
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 Curtis across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Curtis
Son · 1940 · age 14 · b. ~1926 · Arkansas
★ You are viewing this record
Sibling
Calvin Curtis
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Hermon Curtis
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Curtis
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Curtis
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clayton Curtis
Sibling · 1940 · age 20
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 — Washington-County, Arkansas
Open full size
1940 US Federal Census — Washington-County, Arkansas
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00179-00304)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Thurman Rice | 72 | Head | Farming | Ohio |
| 42 | Mary Rice | 68 | Wife | — | Missouri |
| 43 | Thurman A Rice | 30 | Son | Farm Labor | Arkansas |
| 44 | Houston Moss | 48 | Head | Farm Labor | Arkansas |
| 45 | Eula Moss | 47 | Wife | — | Arkansas |
| 46 | Ancel Moss | 20 | Son | Farm Labor | Arkansas |
| 47 | Boyd Moss | 17 | Son | Farm Labor | Arkansas |
| 48 | Eulonia Moss | 13 | Daughter | — | Missouri |
| 49 | Euva Moss | 9 | Daughter | — | Missouri |
| 50 | Robert Sizemore | 50 | Head | Farming | Arkansas |
| 51 | Lane Sizemore | 45 | Wife | — | Arkansas |
| 52 | Claude Sizemore | 20 | Son | Farm Labor | Arkansas |
| 53 | Pauline Sizemore | 18 | Daughter | — | Arkansas |
| 54 | Adine Sizemore | 15 | Daughter | — | Arkansas |
| 55 | Josephine Sizemore | 11 | Daughter | — | Arkansas |
| 56 | Frances Sizemore | 9 | Daughter | — | Arkansas |
| 57 | Rond Sizemore | 6 | Son | — | Arkansas |
| 58 | Dayrel Johnson | 36 | Head | Farming | Arkansas |
| 59 | Mamie Johnson | 36 | Wife | — | Arkansas |
| 60 | Ina Mae Johnson | 12 | Daughter | — | Arkansas |
| 61 | Doris Jean Johnson | 9 | Daughter | — | Arkansas |
| 62 | Charles B Johnson | 8 | Son | — | Arkansas |
| 63 | David J Johnson | 6 | Son | — | Arkansas |
| 64 | Marian L Johnson | 3 | Son | — | Arkansas |
| 65 | Dewey Clark | 33 | Head | Manager | Arkansas |
| 66 | Bernice Clark | 25 | Wife | — | Arkansas |
| 67 | Louise Clark | 5 | Daughter | — | Arkansas |
| 68 | Mary Nell Clark | 3 | Daughter | — | Arkansas |
| 69 | Bryan Curtis | 44 | Head | Laborer | Arkansas |
| 70 | Zatha Curtis | 43 | Wife | — | Iowa |
| 71 | Clayton Curtis | 20 | Son | Laborer | Arkansas |
| 72 | Calvin Curtis | 16 | Son | — | Arkansas |
| 73 | Robert Curtis THIS PERSON | 14 | Son | — | Arkansas |
| 74 | Alice Curtis | 12 | Daughter | — | Arkansas |
| 75 | Hermon Curtis | 10 | Son | — | Arkansas |
| 76 | Mary Jane Curtis | 6 | Daughter | — | Arkansas |
| 77 | Vess Welkley | 28 | Head | Caretaker | Arkansas |
| 78 | Rosie Welkley | 25 | Wife | — | Arkansas |
| 79 | Vernon Welkley | 6 | Son | — | Arkansas |
| 80 | Eula Mae Welkley | 4 | Daughter | — | Arkansas |
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)