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Robert Williamson — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Clark-County, Ohio
Our Model Tree links this Robert Williamson across the 1930 and 1940 US Censuses in Clark-County, Ohio (XGBoost, ~Confirmed) — first a son (b.~1923), then head of a 8-person household.
Age 17
b. ~1923
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Clark-County, Ohio |
| Surname | Williamson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Springfield |
| 1935 Residence (County) | Clark |
| Additional Details | |
| Income (1939) | 0 |
| Highest Grade | H-2 |
| 1935 Residence | Same place |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Township / Ward | Springfield |
| Est. Birth Year | ~1923 |
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 |
|---|---|---|---|---|
| Helen Williamson | Daughter | — | 11 | ~1929 |
| Keith Williamson | Son | — | 2 | ~1938 |
| Lula Williamson | Spouse | — | 37 | ~1903 |
| Douglas Williamson | Son | — | 15 | ~1925 |
| Robert Williamson | Son | — | 17 | ~1923 |
| Arion Smith | Other | — | 73 | ~1867 |
| Rodger Williamson | Son | — | 9 | ~1931 |
| Loretta Williamson | Daughter | — | 6 | ~1934 |
Census Appearances
1930
Clark, Ohio
Son, age 7
Clark, Ohio · implied b. ~1923 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Williamson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 7 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Illinois |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Clark-County, Ohio
Son, age 17
Clark-County, Ohio · implied b. ~1923 — 8 household members
| Surname | Williamson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | Springfield |
| 1935 Residence (County) | Clark |
| Income (1939) | 0 |
| Highest Grade | H-2 |
| 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 Williamson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Williamson
Son · 1940 · age 17 · b. ~1923 · Ohio
★ You are viewing this record
Sibling
Helen Williamson
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Loretta Williamson
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Douglas Williamson
Sibling · 1940 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rodger Williamson
Sibling · 1940 · age 9
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Keith Williamson
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 — Clark-County, Ohio
Open full size
1940 US Federal Census — Clark-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03039-00076)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Lula Williamson | 37 | Wife | — | Illinois |
| 2 | Robert Williamson THIS PERSON | 17 | Son | — | Ohio |
| 3 | Douglas Williamson | 15 | Son | — | Ohio |
| 4 | Helen Williamson | 11 | Daughter | — | Ohio |
| 5 | Rodger Williamson | 9 | Son | — | Ohio |
| 6 | Loretta Williamson | 6 | Daughter | — | Ohio |
| 7 | Keith Williamson | 2 | Son | — | Ohio |
| 8 | Arion Smith | 73 | Father | — | Virginia |
| 9 | — | None | — | — | — |
| 10 | James Stapleton | 70 | Head | Stock Clerk | Ohio |
| 11 | Alta Stapleton | 34 | Wife | — | Ohio |
| 12 | Thelma Stapleton | 16 | Daughter | — | Ohio |
| 13 | Bertha Stapleton | 14 | Daughter | — | Ohio |
| 14 | Martha Stapleton | 4 | Daughter | — | Ohio |
| 15 | Maggie Hall | 75 | Mother | — | Ohio |
| 16 | William Lee | 36 | Head | Laborer | England |
| 17 | Hilda Lee | 32 | Wife | — | England |
| 18 | William Jr. Lee | 13 | Son | — | Ohio |
| 19 | Robert Lee | 11 | Son | — | Ohio |
| 20 | Lorraine Lee | 8 | Daughter | — | Ohio |
| 21 | William Linkenhoker | 47 | Head | Assembler | Ohio |
| 22 | Helen Linkenhoker | 38 | Wife | — | Ohio |
| 23 | John Linkenhoker | 9 | Son | — | Ohio |
| 24 | James Linkenhoker | 4 | Son | — | Ohio |
| 25 | Patrick Barrett | 67 | Head | Molder | Free State Ireland |
| 26 | Mary Barrett | 65 | Wife | — | Ohio |
| 27 | Charles Barrett | 34 | Son | Laborer | Ohio |
| 28 | Robert Barrett | 30 | Son | Laborer | Ohio |
| 29 | Dudley Wickline | 56 | Head | Mechanic | Ohio |
| 30 | Zebbie Wickline | 53 | Wife | — | Ohio |
| 31 | Reba Wickline | 15 | Daughter | — | Ohio |
| 32 | Doris Bush | 27 | Daughter | Packer | Ohio |
| 33 | Elmer Bush | 4 | Son-in-law | — | Ohio |
| 34 | Clifford Baters | 27 | Son-in-law | Core Maker | Ohio |
| 35 | Virginia Baters | 21 | Daughter | — | Ohio |
| 36 | Willis Reedy | 35 | Head | Assembler | Ohio |
| 37 | Valala Reedy | 30 | Wife | — | Ohio |
| 38 | Doris Reedy | 12 | Daughter | — | Ohio |
| 39 | Earnest Huff | 51 | Head | Carpenter | Ohio |
| 40 | Martha Huff | 51 | Wife | — | Ohio |
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)