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Bonnie Smith — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Lawrence-County, Illinois
Our Model Tree links this Bonnie Smith across the 1930 and 1940 US Censuses in Lawrence-County, Illinois (XGBoost, ~Confirmed) — first a daughter (b.~1925), then head of a 8-person household.
Age 15
b. ~1925
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Lawrence-County, Illinois |
| Surname | Smith |
| Given Name | Bonnie C |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Petrolia |
| 1935 Residence (County) | Lawrence |
| Additional Details | |
| Highest Grade | H 2 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Petrolia |
| 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.
8 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Bonnie | Age | Birth yr |
|---|---|---|---|---|
| Maxine Smith | Daughter | — | 23 | ~1917 |
| Ava Smith | Spouse | — | 46 | ~1894 |
| Forrest Smith | Son | — | 18 | ~1922 |
| Bonnie Smith | Daughter | — | 15 | ~1925 |
| Velma Smith | Daughter | — | 10 | ~1930 |
| Charley Smith | Head | — | 46 | ~1894 |
| Mary Smith | Daughter | — | 7 | ~1933 |
| Marjorie Smith | Daughter | — | 13 | ~1927 |
Census Appearances
1930
Lawrence, Illinois
Daughter, age 5
Lawrence, Illinois · implied b. ~1925 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Bonnie C |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Lawrence-County, Illinois
Daughter, age 15
Lawrence-County, Illinois · implied b. ~1925 — 8 household members
| Surname | Smith |
| Given Name | Bonnie C |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Petrolia |
| 1935 Residence (County) | Lawrence |
| 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 Bonnie Smith across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Bonnie Smith
Daughter · 1940 · age 15 · b. ~1925 · Illinois
★ You are viewing this record
Sibling
Mary Smith
Sibling · 1940 · age 7
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Maxine Smith
Sibling · 1940 · age 23
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Velma Smith
Sibling · 1940 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Marjorie Smith
Sibling · 1940 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Forrest Smith
Sibling · 1940 · age 18
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, Illinois
Open full size
1940 US Federal Census — Lawrence-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00835-00543)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Harley A Irish | 14 | Son | — | Illinois |
| 42 | William M Irish | 11 | Son | — | Illinois |
| 43 | Guy E Waggoner | 44 | Head | Pumper | Illinois |
| 44 | Grace N Waggoner | 39 | Wife | — | Kentucky |
| 45 | Delores E Waggoner | 19 | Daughter | — | Illinois |
| 46 | Virginia L Waggoner | 12 | Daughter | — | Illinois |
| 47 | Harry C Pugh | 31 | Head | Roustabout | Indiana |
| 48 | Rachel E Pugh | 32 | Wife | — | North Carolina |
| 49 | Beverly J Pugh | 3 | Daughter | — | Illinois |
| 50 | Carolyn K Pugh | 1 | Daughter | — | Illinois |
| 51 | Charles B Gundy | 42 | Head | Tool Dresser | Illinois |
| 52 | Jessie N Gundy | 43 | Wife | — | Illinois |
| 53 | Cecil E Gundy | 20 | Son | — | Illinois |
| 54 | Lucille E Gundy | 19 | Daughter | — | Illinois |
| 55 | Harold D Gundy | 4 | Son | — | Illinois |
| 56 | John I Waggoner | 57 | Head | Pumper | Illinois |
| 57 | Jennie F Waggoner | 46 | Wife | — | Pennsylvania |
| 58 | Cristella F Waggoner | 13 | Daughter | — | Illinois |
| 59 | Dorothy Coffey | 21 | Stepdaughter | — | Illinois |
| 60 | Joyce A Coffey | 0 | Granddaughter | — | Indiana |
| 61 | Boyd A Sharp | 35 | Head | Roustabout | Illinois |
| 62 | Clara M Sharp | 32 | Wife | — | Illinois |
| 63 | Frances L Sharp | 9 | Daughter | — | Illinois |
| 64 | Charley A Smith | 46 | Head | Pumper | Illinois |
| 65 | Ava E Smith | 46 | Wife | — | Illinois |
| 66 | Maxine E Smith | 23 | Daughter | Bookkeeper | Illinois |
| 67 | Forrest R Smith | 18 | Son | — | Illinois |
| 68 | Bonnie C Smith THIS PERSON | 15 | Daughter | — | Illinois |
| 69 | Marjorie L Smith | 13 | Daughter | — | Illinois |
| 70 | Velma M Smith | 10 | Daughter | — | Illinois |
| 71 | Mary U Smith | 7 | Daughter | — | Illinois |
| 72 | Orville G Earnest | 44 | Head | Roustabout | Illinois |
| 73 | Edna A Earnest | 41 | Wife | — | Illinois |
| 74 | Glenn W Earnest | 19 | Son | New Worker | Illinois |
| 75 | Lillian M Earnest | 15 | Daughter | — | Illinois |
| 76 | Harold L Earnest | 12 | Son | — | Illinois |
| 77 | Charles C Cronin | 42 | Head | Driller | Illinois |
| 78 | Garnet L Cronin | 38 | Wife | — | Illinois |
| 79 | James O Coffield | 61 | Head | Roustabout | Indiana |
| 80 | Ada E Huffer | 49 | Daughter | — | 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)