RC
Robert Campbell — 1940 US Census Record
Model Tree available1940 United States Federal Census · Ashtabula-County, Ohio
Our Model Tree links this Robert Campbell across the 1920, 1930 and 1940 US Censuses in Ashtabula-County, Ohio (XGBoost, ~Confirmed), with identified parents Howard & Mary — first a son (b.~1914), then head of a 4-person household.
Age 26
b. ~1914
Male
Son
Born: Ohio
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Ashtabula-County, Ohio |
| Surname | Campbell |
| Given Name | Robert H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Ashtabula |
| Additional Details | |
| Occupation | Salesman |
| Industry | Retail Shoe Store |
| Class of Worker | PW |
| Income (1939) | 960 |
| Highest Grade | H 4 |
| 1935 Residence | Ohio |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
| Occupation | Salesman |
| Township / Ward | Ashtabula City |
| Est. Birth Year | ~1914 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Mary Loomis | Head | — | 47 | ~1893 |
| Gay Campbell | Son | — | 15 | ~1925 |
| Robert Campbell | Son | — | 26 | ~1914 |
| Paul Campbell | Son | — | 22 | ~1918 |
Census Appearances
1920
Ashtabula, Ohio
Son, age 5
Ashtabula, Ohio · implied b. ~1915 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Robert E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Occupation | none |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1930
Ashtabula, Ohio
Son, age 16
Ashtabula, Ohio · implied b. ~1914 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Robert H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Ohio |
| Father's Birthplace | Ohio |
| Mother's Birthplace | Ohio |
| Can Read/Write | Yes |
| Birth State | Ohio |
| Birth Country | United States |
| Birthplace (normalized) | ohio |
1940
Ashtabula-County, Ohio
Son, age 26
Ashtabula-County, Ohio · implied b. ~1914 — 4 household members
| Surname | Campbell |
| Given Name | Robert H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Ohio |
| 1935 Residence (City) | R |
| 1935 Residence (County) | Ashtabula |
| Occupation | Salesman |
| Industry | Retail Shoe Store |
| Class of Worker | PW |
| Income (1939) | 960 |
| Highest Grade | H 4 |
| 1935 Residence | Ohio |
| 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 Campbell across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Howard Campbell (~0.92 confidence) and mother Mary Loomis (~0.92 confidence) and mother Mary Campbell (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Howard Campbell
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Mary Loomis
b. ~1893
Source mother
● Household
· direct · ~0.92
Mother
Mary Campbell
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Campbell
Son · 1940 · age 26 · b. ~1914 · Ohio
★ You are viewing this record
Sibling
Paul Campbell
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Gay Campbell
Sibling · 1940 · age 15
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 — Ashtabula-County, Ohio
Open full size
1940 US Federal Census — Ashtabula-County, Ohio
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03023-00675)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Thomas H Johns | 29 | Head | Laborer | Ohio |
| 2 | Julia M Johns | 26 | Daughter | — | Ohio |
| 3 | Ellis Elaine E Johns | 14 | Nephew | — | Ohio |
| 4 | George B Murphy | 69 | Head | Laborer | New York |
| 5 | Ella A Murphy | 52 | Wife | — | West Virginia |
| 6 | Paul R Layman | 27 | Son | Billing Clerk | Ohio |
| 7 | Lance J Layman | 23 | Son | Porter | Ohio |
| 8 | Joseph B Neely | 66 | Head | Agent | Pennsylvania |
| 9 | Olive A Neely | 55 | Wife | — | Pennsylvania |
| 10 | Harold F Sugman | 39 | Son-in-law | Painter | Ohio |
| 11 | Evelyn Sugman | 33 | Daughter | — | Pennsylvania |
| 12 | Eleanore Sugman | 12 | Daughter | — | Ohio |
| 13 | Harold J Sugman | 9 | Grandson | — | Ohio |
| 14 | Chet L Bailey | 89 | Head | Retired | Ohio |
| 15 | Louis F Q Porter | 60 | Lodger | Laborer | Ohio |
| 16 | Ada B Porter | 55 | Lodger | — | Ohio |
| 17 | Howard C Porter | 24 | Lodger | Laborer | Ohio |
| 18 | Herbert K Douglas | 43 | Head | Proprietor | Virginia |
| 19 | Olive D Douglas | 45 | Wife | — | Ohio |
| 20 | Love C Douglas | 17 | Daughter | — | Ohio |
| 21 | Marilyn J Douglas | 16 | Daughter | — | Ohio |
| 22 | George E Rice | 43 | Head | Foreman | New York |
| 23 | Helen B Rice | 40 | Wife | — | Ohio |
| 24 | Robert A Rice | 18 | Son | — | Ohio |
| 25 | George E Jr Rice | 15 | Son | — | Ohio |
| 26 | John S Temple | 28 | Head | Manager | Ohio |
| 27 | Eva Belle Temple | 25 | Wife | — | Pennsylvania |
| 28 | John T Temple | 6 | Son | — | Ohio |
| 29 | Henrietta L Temple | 2 | Daughter | — | Ohio |
| 30 | Gerald E Temple | 0 | Son | — | Ohio |
| 31 | Susan Weston | 18 | Maid | Maid | Ohio |
| 32 | Charles L G La Reaux | 46 | Head | Baker | Ohio |
| 33 | June B La Reaux | 41 | Wife | — | Ohio |
| 34 | Marie J La Reaux | 22 | Daughter | — | Ohio |
| 35 | Mary E Loomis | 47 | Head | — | Ohio |
| 36 | Robert H Campbell THIS PERSON | 26 | Son | Salesman | Ohio |
| 37 | Paul E Campbell | 22 | Son | Laborer | Ohio |
| 38 | Gay W Jr Campbell | 15 | Son | — | Ohio |
| 39 | William G Dean | 33 | Head | Bank Teller | Pennsylvania |
| 40 | Elinor H Dean | 31 | Wife | — | Pennsylvania |
Pedigree Summary
Robert + 2 siblings
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)