RT
Robert Todd — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Sangamon-County, Illinois
Our Model Tree links this Robert Todd across the 1920, 1930 and 1940 US Censuses in Sangamon-County, Illinois (XGBoost, ~Confirmed) — first a head (b.~1880), then head of a 5-person household.
Age 60
b. ~1880
Male
Head
Born: England
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Sangamon-County, Illinois |
| Surname | Todd |
| Given Name | Robert T. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Springfield |
| 1935 Residence (County) | Sangamon |
| Naturalization Status | Naturalized |
| Additional Details | |
| Occupation | Miner |
| Industry | Coal Mine |
| Class of Worker | PW |
| Hours Worked | 40 |
| Highest Grade | S 8 |
| 1935 Residence | Same place |
| Birth Country | England |
| Birthplace (normalized) | england |
| Occupation | Miner |
| Township / Ward | Springfield |
| Est. Birth Year | ~1880 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| James Todd | Son | — | 24 | ~1916 |
| George Todd | Other | — | 5 | ~1935 |
| Mary Todd | Spouse | — | 58 | ~1882 |
| Hayelyn Todd | Daughter | — | 21 | ~1919 |
| Robert Todd | Head | — | 60 | ~1880 |
Census Appearances
1920
Sangamon, Illinois
Head, age 40
Sangamon, Illinois · implied b. ~1880 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Todd |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 40 |
| Marital Status | Married |
| Birthplace | England |
| Year of Immigration | 1913 |
| Naturalization Status | Alien |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Miner |
| Industry | Coal Mine |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | English |
| Birth Country | England |
| Year of Naturalization | R |
| Birthplace (normalized) | england |
1930
Sangamon, Illinois
Head, age 50
Sangamon, Illinois · implied b. ~1880 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Tadd |
| Given Name | Robert |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 50 |
| Marital Status | Married |
| Birthplace | England |
| Naturalization Status | Alien |
| Year of Immigration | 1913 |
| Age at First Marriage | 24 |
| Father's Birthplace | England |
| Mother's Birthplace | England |
| Occupation | Miner |
| Industry | Coal Mine |
| Class of Worker | W |
| Can Read/Write | Yes |
| Mother Tongue | English |
| Home Owned/Rented | R |
| Home Value / Rent | 11 |
| Veteran | No |
| Birth Country | England |
| Birthplace (normalized) | england |
1940
Sangamon-County, Illinois
Head, age 60
Sangamon-County, Illinois · implied b. ~1880 — 5 household members
| Surname | Todd |
| Given Name | Robert T. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 60 |
| Marital Status | Married |
| Birthplace | England |
| 1935 Residence (City) | Springfield |
| 1935 Residence (County) | Sangamon |
| Naturalization Status | Naturalized |
| Occupation | Miner |
| Industry | Coal Mine |
| Class of Worker | PW |
| Hours Worked | 40 |
| Highest Grade | S 8 |
| 1935 Residence | Same place |
| Birth Country | England |
| Birthplace (normalized) | england |
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 Todd across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Todd
Head · 1940 · age 60 · b. ~1880 · Illinois
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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-t0627-00887-01013)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Herbert C. Bright | 39 | Head | Civil Engineer | Iowa |
| 2 | Cora M. Bright | 33 | Wife | — | Illinois |
| 3 | Jane Bright | 9 | Daughter | — | Illinois |
| 4 | Thomas Bright | 7 | Son | — | Illinois |
| 5 | Russell W. Kikendall | 34 | Head | Salesman | Illinois |
| 6 | Mila C. Kikendall | 27 | Wife | — | Illinois |
| 7 | Melvin V. Jager | 31 | Head | Transmitter Man | Illinois |
| 8 | Lucille M. Jager | 28 | Wife | — | Illinois |
| 9 | Judith A. Jager | 4 | Daughter | — | Illinois |
| 10 | Melvin J. Jager | 3 | Son | — | Illinois |
| 11 | Otis J. Vaughan | 57 | Head | Clerk | Illinois |
| 12 | Lula D. W. Vaughan | 55 | Wife | — | Illinois |
| 13 | Norman H. Reeder | 39 | Head | Manager Editor | Michigan |
| 14 | Barbara E. W. Reeder | 37 | Wife | — | Ohio |
| 15 | Diane N. Reeder | 7 | Daughter | — | New York |
| 16 | Babette R. Reeder | 4 | Daughter | — | Michigan |
| 17 | Robert T. Todd THIS PERSON | 60 | Head | Miner | England |
| 18 | Mary W. Todd | 58 | Wife | — | England |
| 19 | James A. Todd | 24 | Son | Clerk | England |
| 20 | Hayelyn E. Todd | 21 | Daughter | — | Illinois |
| 21 | George E. Todd | 5 | Grandson | — | Illinois |
| 22 | Loyal H. Hinton | 33 | Head | Asst Supt | Illinois |
| 23 | Charlene W. Hinton | 29 | Wife | — | Illinois |
| 24 | Carolyn Hinton | 5 | Daughter | — | Illinois |
| 25 | Robert Munson | 36 | Head | Bookkeeper | Illinois |
| 26 | Marion L. W. Munson | 35 | Wife | — | Illinois |
| 27 | Roberta A. Munson | 2 | Daughter | — | Illinois |
| 28 | Vernon M. Romine | 38 | Head | Civil Engineer | Illinois |
| 29 | Edith J. W. Romine | 35 | Wife | — | Illinois |
| 30 | Beverly Jean Romine | 9 | Daughter | — | Illinois |
| 31 | Edward C. Jordan | 45 | Head | Dentist | Illinois |
| 32 | Faith Jordan | 43 | Wife | — | Illinois |
| 33 | Alice Jordan | 13 | Daughter | — | Illinois |
| 34 | Rudolph V. Blunke | 46 | Head | Elec Engineer | Illinois |
| 35 | Mary A. W. Blunke | 44 | Wife | — | Mass |
| 36 | Betty M. Blunke | 18 | Daughter | — | Illinois |
| 37 | Robert Blunke | 11 | Son | — | Illinois |
| 38 | William Blunke | 11 | Son | — | Illinois |
| 39 | Royce A. Riddle | 61 | Head | Attorney | Illinois |
| 40 | Vesta S. W. Riddle | 54 | Wife | — | 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)