RC
Richard Campbell — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Winnebago-County, Illinois
Our Model Tree links this Richard Campbell across the 1930 and 1940 US Censuses in Winnebago-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1922), then head of a 9-person household.
Age 18
b. ~1922
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Winnebago-County, Illinois |
| Surname | Campbell |
| Given Name | Richard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Rockford City |
| 1935 Residence (County) | Winnebago |
| Additional Details | |
| Occupation | New Worker |
| Class of Worker | 0 |
| Highest Grade | H-2 |
| 1935 Residence | Same Place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | New Worker |
| Township / Ward | Rockford City |
| Est. Birth Year | ~1922 |
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.
9 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Richard | Age | Birth yr |
|---|---|---|---|---|
| Elsie Campbell | Spouse | — | 39 | ~1901 |
| Rodney Campbell | Son | — | 5 | ~1935 |
| Phyllis Campbell | Daughter | — | 7 | ~1933 |
| Melvin Campbell | Son | — | 8 | ~1932 |
| Richard Campbell | Son | — | 18 | ~1922 |
| Truman Campbell | Head | — | 49 | ~1891 |
| Jean Campbell | Daughter | — | 11 | ~1929 |
| Wesley Campbell | Son | — | 3 | ~1937 |
| Eleanor Campbell | Daughter | — | 12 | ~1928 |
Census Appearances
1930
Winnebago, Illinois
Son, age 9
Winnebago, Illinois · implied b. ~1921 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Campbell |
| Given Name | Richard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 9 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Winnebago-County, Illinois
Son, age 18
Winnebago-County, Illinois · implied b. ~1922 — 9 household members
| Surname | Campbell |
| Given Name | Richard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Rockford City |
| 1935 Residence (County) | Winnebago |
| Occupation | New Worker |
| Class of Worker | 0 |
| Highest Grade | H-2 |
| 1935 Residence | Same Place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 Richard Campbell across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Richard Campbell
Son · 1940 · age 18 · b. ~1922 · Illinois
★ You are viewing this record
Sibling
Eleanor Campbell
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jean Campbell
Sibling · 1940 · age 11
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Wesley Campbell
Sibling · 1940 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Phyllis Campbell
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Rodney Campbell
Sibling · 1940 · age 5
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Melvin Campbell
Sibling · 1940 · age 8
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 — Winnebago-County, Illinois
Open full size
1940 US Federal Census — Winnebago-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00915-00124)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Victor Olson | 41 | Head | Machinist | Sweden |
| 42 | Noulia | Nouha Olson | 41 | Wife | — | Minnesota |
| 43 | Genevieve Olson | 14 | Daughter | — | Illinois |
| 44 | Harold Olson | 12 | Son | — | Wisconsin |
| 45 | La Von Olson | 11 | Daughter | — | Illinois |
| 46 | Madeline Olson | 10 | Daughter | — | Illinois |
| 47 | Roland Olson | 8 | Son | — | Illinois |
| 48 | Robert Olson | 6 | Son | — | Illinois |
| 49 | Richard Olson | 5 | Son | — | Illinois |
| 50 | Victor Jr Olson | 3 | Son | — | Illinois |
| 51 | John Olson | 2 | Son | — | Illinois |
| 52 | Raymond Olson | 0 | Son | — | Illinois |
| 53 | Gust Mousoulis | 50 | Head | Proprietor | Greece |
| 54 | Athanasia Mousoulis | 45 | Wife | Cashier | Greece |
| 55 | Basil Mousoulis | 21 | Son | Sprayer | Illinois |
| 56 | Katharine Mousoulis | 20 | Daughter | Steno + Secy. | Illinois |
| 57 | Dorothy Mousoulis | 19 | Daughter | — | Illinois |
| 58 | Christine Mousoulis | 17 | Daughter | — | Illinois |
| 59 | Stanley Johnson | 45 | Head | Salesman | Illinois |
| 60 | Jessie C. Johnson | 36 | Wife | Office Clerical | Illinois |
| 61 | Claudia Johnson | 5 | Daughter | — | Illinois |
| 62 | Adolph Larson | 56 | Head | Life Insurance | S Dakota |
| 63 | N Glen Larson | 17 | Son | Machinist | Illinois |
| 64 | Garnett A Larson | 14 | Daughter | — | Illinois |
| 65 | Chester L Bailey | 55 | Head | Teacher | Indiana |
| 66 | Hilda Bailey | 48 | Wife | Saleswoman | Illinois |
| 67 | Mack M Bailey | 17 | Son | Newsboy | Illinois |
| 68 | Hilda Peterson | 79 | Mother-in-law | — | Sweden |
| 69 | Truman Campbell | 49 | Head | — | Illinois |
| 70 | Elsie S Campbell | 39 | Wife | — | Illinois |
| 71 | Richard Campbell THIS PERSON | 18 | Son | New Worker | Illinois |
| 72 | Eleanor Campbell | 12 | Daughter | — | Michigan |
| 73 | Jean Campbell | 11 | Daughter | — | Illinois |
| 74 | Melvin Campbell | 8 | Son | — | Illinois |
| 75 | Phyllis Campbell | 7 | Daughter | — | Illinois |
| 76 | Rodney Campbell | 5 | Son | — | Illinois |
| 77 | Wesley Campbell | 3 | Son | — | Illinois |
| 78 | George Wahlman | 31 | Head | Carpenter | Illinois |
| 79 | Louise Wahlman | 29 | Wife | Retail Confect Manager | Illinois |
| 80 | James H. Wahlman | 5 | Son | — | Illinois |
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)