JT
John Todd — 1940 US Census Record
Model Tree available1940 United States Federal Census · Sangamon-County, Illinois
Our Model Tree links this John Todd across the 1920, 1930 and 1940 US Censuses in Sangamon-County, Illinois (XGBoost, ~Confirmed), with identified parents W & Andrew — first a son (b.~1907), then head of a 13-person household.
Age 33
b. ~1907
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Sangamon-County, Illinois |
| Surname | Todd |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Rochester township |
| 1935 Residence (County) | Sangamon |
| Additional Details | |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Farmer |
| Township / Ward | Rochester Township |
| Est. Birth Year | ~1907 |
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.
13 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Minerva Durham | Daughter | — | 43 | ~1897 |
| Naomi Rapps | Daughter | — | 45 | ~1895 |
| W Todd | Head | — | 69 | ~1871 |
| John Rapps | Other | — | 6 | ~1934 |
| Ruth Rapps | Other | — | 16 | ~1924 |
| Walter Rapps | Other | — | 10 | ~1930 |
| Helen Durham | Other | — | 19 | ~1921 |
| Edward Davis | Other | — | 72 | ~1868 |
| Smith Todd | Other | — | 66 | ~1874 |
| Robert Rapps | Other | — | 13 | ~1927 |
| Paul Rapps | Other | — | 19 | ~1921 |
| John Todd | Son | — | 33 | ~1907 |
| Sarah Todd | Spouse | — | 67 | ~1873 |
Census Appearances
1920
Sangamon, Illinois
Son, age 13
Sangamon, Illinois · implied b. ~1907 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Todd |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Wales |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Welch |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Sangamon, Illinois
Son, age 24
Sangamon, Illinois · implied b. ~1906 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Todd |
| Given Name | John H |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Wales |
| Occupation | Bookkeeper |
| Industry | Paint Shop |
| Class of Worker | W |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Sangamon-County, Illinois
Son, age 33
Sangamon-County, Illinois · implied b. ~1907 — 13 household members
| Surname | Todd |
| Given Name | John |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 33 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Rochester township |
| 1935 Residence (County) | Sangamon |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | No 6 |
| 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 John Todd across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father W Todd (~0.92 confidence) and father Andrew Todd (~0.92 confidence) and mother Sarah Todd (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
W Todd
b. ~1871
Source father
● Household
· direct · ~0.92
Father
Andrew Todd
b. ~1872
Source father
● Household
· direct · ~0.92
Mother
Sarah Todd
b. ~1873
Source mother
● Household
· direct · ~0.92
This person
Anchor record
John Todd
Son · 1940 · age 33 · b. ~1907 · Illinois
★ You are viewing this record
Sibling
Minerva Durham
Sibling · 1940 · age 43
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Naomi Rapps
Sibling · 1940 · age 45
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 — Sangamon-County, Illinois
Open full size
1940 US Federal Census — Sangamon-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00887-00604)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Clarence Gabriel | 12 | Son | Laborer | Illinois |
| 42 | Maggie M. Gabriel | 67 | Mother | — | Illinois |
| 43 | Albert Gabriel | 45 | Brother | Farmer | Illinois |
| 44 | Mary S. Beard | 54 | Head | — | Illinois |
| 45 | Ralph Beard | 23 | Son | Farmer | Illinois |
| 46 | Charles Beard | 22 | Son | Farmer | Illinois |
| 47 | Edith Beard | 31 | Daughter | — | Illinois |
| 48 | Evelyn Ruth Beard | 2 | Granddaughter | — | Illinois |
| 49 | Charles Robert Beard | 0 | Grandson | — | Illinois |
| 50 | John Kleinschmidt | 58 | Head | — | Germany |
| 51 | Walter Kleinschmidt | 14 | Son | — | Illinois |
| 52 | W. Q. Todd | 69 | Head | Farmer | Kentucky |
| 53 | Sarah Todd | 67 | Wife | — | Wales |
| 54 | John Todd THIS PERSON | 33 | Son | Farmer | Illinois |
| 55 | Naomi Rapps | 45 | Daughter | — | Illinois |
| 56 | Paul Rapps | 19 | Grandson | Laborer | Illinois |
| 57 | Ruth Rapps | 16 | Granddaughter | — | Illinois |
| 58 | Robert Rapps | 13 | Grandson | — | Illinois |
| 59 | Walter Rapps | 10 | Grandson | — | Illinois |
| 60 | John Rapps | 6 | Grandson | — | Illinois |
| 61 | Minerva Durham | 43 | Daughter | — | Illinois |
| 62 | Helen Durham | 19 | Granddaughter | New Worker | Illinois |
| 63 | Smith Todd | 66 | Brother | Farmer | Kentucky |
| 64 | Edward Davis | 72 | Brother-in-law | Farmer | Wales |
| 65 | Lloyd Hart | 46 | Head | Farmer | Illinois |
| 66 | Lena Hart | 50 | Wife | — | Illinois |
| 67 | Donald Hart | 19 | Son | Attendant | Illinois |
| 68 | Betty Hart | 16 | Son | — | Illinois |
| 69 | William Stephens | 41 | Head | Farmer | Illinois |
| 70 | Louie Stephens | 40 | Wife | — | Illinois |
| 71 | Helen Stephens | 17 | Daughter | — | Illinois |
| 72 | Dorothy Stephens | 8 | Daughter | — | Illinois |
| 73 | Claude Stroud | 62 | Head | — | Indiana |
| 74 | Agnes Stroud | 31 | Wife | — | Illinois |
| 75 | Lillie Meyer | 59 | Head | — | Illinois |
| 76 | Oscar Meyer | 28 | Son | — | Illinois |
| 77 | Carl Clark | 30 | Head | Farmer | Illinois |
| 78 | Nora Mae Clark | 23 | Wife | — | Illinois |
| 79 | Robert Clark | 1 | Son | — | Illinois |
| 80 | Mary Joan Clark | 0 | Daughter | — | Illinois |
Pedigree Summary
John + 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)