RC
Robert Curtis — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lawrence-County, Ohio
Our Model Tree links this Robert Curtis across the 1930 and 1940 US Censuses in Lawrence-County, Ohio (XGBoost, ~Confirmed) — first a son (b.~1925), then head of a 10-person household.
Age 15
b. ~1925
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lawrence-County, Ohio |
| Surname | Curtis |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Unincorporated place Bradrick |
| 1935 Residence (County) | Lawrence |
| Additional Details | |
| Hours Worked | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Unincorporated Place Bradrick |
| Est. Birth Year | ~1925 |
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.
10 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Rachel Curtis | Daughter | — | 8 | ~1932 |
| Joseph Curtis | Son | — | 16 | ~1924 |
| Roy Curtis | Head | — | 43 | ~1897 |
| Rosie Curtis | Spouse | — | 43 | ~1897 |
| Ruth Curtis | Daughter | — | 6 | ~1934 |
| John Curtis | Son | — | 2 | ~1938 |
| Delores Polley | Other | — | 15 | ~1925 |
| Robert Curtis | Son | — | 15 | ~1925 |
| Lucille Curtis | Daughter | — | 13 | ~1927 |
| Dallas Polley | Other | — | 17 | ~1923 |
Census Appearances
1930
Lawrence, Ohio
Son, age 5
Lawrence, Ohio · implied b. ~1925 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Curtis |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | West Virginia |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Lawrence-County, Ohio
Son, age 15
Lawrence-County, Ohio · implied b. ~1925 — 10 household members
| Surname | Curtis |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Unincorporated place Bradrick |
| 1935 Residence (County) | Lawrence |
| Hours Worked | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
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 15 · b. ~1925 · Ohio
★ You are viewing this record
Sibling
Joseph Curtis
Sibling · 1940 · age 16
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rachel Curtis
Sibling · 1940 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Curtis
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lucille Curtis
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
John Curtis
Sibling · 1940 · age 2
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 — Lawrence-County, Ohio
Open full size
1940 US Federal Census — Lawrence-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03097-00380)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Ase Holley | 64 | Head | Farmer | West Virginia |
| 42 | Ruth Holley | 48 | Wife | — | West Virginia |
| 43 | Mildred Holley | 19 | Daughter | New Worker | West Virginia |
| 44 | Junior Holley | 16 | Son | — | West Virginia |
| 45 | Cora Holley | 12 | Daughter | — | West Virginia |
| 46 | Howard Holley | 7 | Son | — | West Virginia |
| 47 | Harvey Smoot | 44 | Head | Laborer | Ohio |
| 48 | Anna Smoot | 43 | Wife | — | Ohio |
| 49 | Carolyn Smoot | 11 | Daughter | — | Ohio |
| 50 | John Smoot | 18 | Son | Automobile Mechanic | West Virginia |
| 51 | Peggy Smoot | 17 | Daughter-in-law | — | West Virginia |
| 52 | Rosie Daniels | 43 | Head | — | West Virginia |
| 53 | Dorothy J. Daniels | 14 | Daughter | — | Ohio |
| 54 | Clifford Jack | 33 | Head | Pipe Fitter Helper | Ohio |
| 55 | Virginia Jack | 39 | Wife | — | Ohio |
| 56 | Gloria J. Jack | 7 | Daughter | — | West Virginia |
| 57 | Otho Suiter | 33 | Head | Laborer | Ohio |
| 58 | Doris Suiter | 26 | Wife | — | Illinois |
| 59 | Edwin Suiter | 7 | Son | — | Washington |
| 60 | Ada Garner | 71 | Head | — | Ohio |
| 61 | Albert Stewart | 23 | Head | Labor | West Virginia |
| 62 | Estol Stewart | 23 | Wife | — | Ohio |
| 63 | Albert John Stewart | 1 | Son | — | Ohio |
| 64 | Ernest Dement | 40 | Head | Labor | Ohio |
| 65 | Flossie Dement | 28 | Wife | — | Ohio |
| 66 | Junior Dement | 14 | Son | — | Ohio |
| 67 | Jennie Carpenter | 64 | Head | — | Missouri |
| 68 | Grace Carpenter | 39 | Daughter | Stenographer | Ohio |
| 69 | Ida Curtis | 71 | Head | — | West Virginia |
| 70 | Louisa Curtis | 47 | Daughter | — | Ohio |
| 71 | Roy Curtis | 43 | Head | Laborer Painter Helper | Ohio |
| 72 | Rosie Curtis | 43 | Wife | — | West Virginia |
| 73 | Joseph Curtis | 16 | Son | — | Ohio |
| 74 | Robert Curtis THIS PERSON | 15 | Son | — | Ohio |
| 75 | Lucille Curtis | 13 | Daughter | — | Ohio |
| 76 | Rachel Curtis | 8 | Daughter | — | Ohio |
| 77 | Ruth Curtis | 6 | Daughter | — | Ohio |
| 78 | John Curtis | 2 | Son | — | Ohio |
| 79 | Dallas Polley | 17 | Step-son | Delivery Boy | West Virginia |
| 80 | Delores Polley | 15 | Step-daughter | — | West Virginia |
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)