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John Cameron — 1940 US Census Record
Model Tree available1940 United States Federal Census · Boone-County, Illinois
Our Model Tree links this John Cameron across the 1920, 1930 and 1940 US Censuses in Boone-County, Illinois (XGBoost, ~Confirmed), with identified parents John & William — first a son (b.~1903), then head of a 5-person household.
Age 37
b. ~1903
Male
Son
Born: Scotland
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Boone-County, Illinois |
| Surname | Cameron |
| Given Name | John P. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Single |
| Birthplace | Scotland |
| 1935 Residence (City) | Belvidere |
| 1935 Residence (County) | Boone |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Clerk |
| Industry | Grocery Store |
| Class of Worker | PW |
| Income (1939) | 220 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
| Occupation | Clerk |
| Township / Ward | Belvidere |
| Est. Birth Year | ~1903 |
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.
5 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Malcolm Cameron | Son | — | 33 | ~1907 |
| John Cameron | Son | — | 37 | ~1903 |
| Sarah Cameron | Daughter | — | 40 | ~1900 |
| Frank Cameron | Son | — | 30 | ~1910 |
| William Cameron | Head | — | 78 | ~1862 |
Census Appearances
1920
La Salle, …
Son, age 14
La Salle, Illinois · implied b. ~1906 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cameron |
| Given Name | John Jr. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Scotland |
| Year of Immigration | 1907 |
| Naturalization Status | Naturalized |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Scotch |
| Birth Country | Scotland |
| Year of Naturalization | 1914 |
| Birthplace (normalized) | scotland |
1930
Boone, Illinois
Son, age 26
Boone, Illinois · implied b. ~1904 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Cameron |
| Given Name | John P |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 26 |
| Marital Status | Single |
| Birthplace | Scotland |
| Naturalization Status | First papers filed |
| Year of Immigration | 1908 |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Scotland |
| Occupation | Salesman |
| Industry | Grocery store |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
1940
Boone-County, Illinois
Son, age 37
Boone-County, Illinois · implied b. ~1903 — 5 household members
| Surname | Cameron |
| Given Name | John P. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 37 |
| Marital Status | Single |
| Birthplace | Scotland |
| 1935 Residence (City) | Belvidere |
| 1935 Residence (County) | Boone |
| Naturalization Status | Naturalized |
| Occupation | Clerk |
| Industry | Grocery Store |
| Class of Worker | PW |
| Income (1939) | 220 |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth Country | Scotland |
| Birthplace (normalized) | scotland |
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 John Cameron across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage. Identified parents: father John Cameron (~0.92 confidence) and father William Cameron (~0.92 confidence) and mother Sarah Cameron (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
John Cameron
b. ~1877
Source father
● Household
· direct · ~0.92
Father
William Cameron
b. ~1863
Source father
● Household
· direct · ~0.92
Mother
Sarah Cameron
b. ~1885
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Cameron
Son · 1940 · age 37 · b. ~1903 · Illinois
★ You are viewing this record
Sibling
Frank Cameron
Sibling · 1940 · age 30
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sarah Cameron
Sibling · 1940 · age 40
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Malcolm Cameron
Sibling · 1940 · age 33
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 — Boone-County, Illinois
Open full size
1940 US Federal Census — Boone-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00760-00251)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Ivan Dewitt | 63 | Head | Barber | New York |
| 2 | Bessie Dewitt | 57 | Wife | — | North Carolina |
| 3 | Fred Dewitt | 34 | Son | Barber | Illinois |
| 4 | Oscar H. Anderson | 60 | Head | Farmer | Sweden |
| 5 | Olive H. Anderson | 48 | Wife | — | Illinois |
| 6 | Marie E. Anderson | 23 | Daughter | Factory | Illinois |
| 7 | Lucile M. Anderson | 21 | Daughter | Farm Bureau | Illinois |
| 8 | Floyd R. Anderson | 16 | Son | — | Illinois |
| 9 | Helen R. Anderson | 12 | Daughter | — | Illinois |
| 10 | Lester H. Naber | 36 | Head | Laborer | Missouri |
| 11 | William Cameron | 78 | Head | Factory | Scotland |
| 12 | Sarah Cameron | 40 | Daughter | Housekeeper | Scotland |
| 13 | John P. Cameron THIS PERSON | 37 | Son | Clerk | Scotland |
| 14 | Malcolm Cameron | 33 | Son | Rubber Factory | Scotland |
| 15 | Frank M. Cameron | 30 | Son | Employee | Illinois |
| 16 | William Montgomery | 61 | Head | Factory | Indiana |
| 17 | Maude Montgomery | 61 | Wife | — | Indiana |
| 18 | Harold W. Felty | 27 | Son-in-law | Washer | Illinois |
| 19 | Mildred Felty | 23 | Daughter | — | Illinois |
| 20 | Lowell Felty | 5 | Son | — | Illinois |
| 21 | Loren Felty | 5 | Son | — | Illinois |
| 22 | Charles Flint | 80 | Head | — | Illinois |
| 23 | Elizabeth Anderson | 50 | Head | — | Illinois |
| 24 | Russell Holmquist | 34 | Son | — | Illinois |
| 25 | Lucile Holmquist | 29 | Daughter | — | Illinois |
| 26 | Betty L. Holmquist | 7 | Granddaughter | — | Illinois |
| 27 | Richard Holmquist | 3 | Grandson | — | Illinois |
| 28 | Shirley J. Holmquist | 1 | Granddaughter | — | Illinois |
| 29 | Thomas J. Dickson | 65 | Head | Laborer | New York |
| 30 | Richard R. Mccabe | 46 | Head | Cook | Kansas |
| 31 | Maude A. Mccabe | 39 | Wife | — | Wisconsin |
| 32 | Leighton R. Mccabe | 19 | Son | — | Illinois |
| 33 | Lester B. Collier | 73 | Uncle | Pension | Illinois |
| 34 | Ray H. Sellick | 25 | Head | — | Illinois |
| 35 | Margaret Sellick | 23 | Wife | — | Wisconsin |
| 36 | Clarence Biester | 47 | Head | Operator | Illinois |
| 37 | Margaret Biester | 35 | Wife | — | England |
| 38 | Kenneth L. Biester | 16 | Son | — | Illinois |
| 39 | Erming J. Biester | 13 | Daughter | — | Illinois |
| 40 | Amanda Nelson | 78 | Head | — | Sweden |
Pedigree Summary
John + 3 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)