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Robert Frank — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Sangamon-County, Illinois
Our Model Tree links this Robert Frank across the 1930 and 1940 US Censuses in Sangamon-County, Illinois (XGBoost, ~Confirmed) — first a son (b.~1927), then head of a 9-person household.
Age 13
b. ~1927
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Sangamon-County, Illinois |
| Surname | Frank |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Island Grove Twp. |
| 1935 Residence (County) | Sangamon |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Island Grove Twp |
| Est. Birth Year | ~1927 |
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 Robert | Age | Birth yr |
|---|---|---|---|---|
| Ralph Frank | Son | — | 28 | ~1912 |
| Joseph Frank | Head | — | 60 | ~1880 |
| Lawrence Frank | Son | — | 14 | ~1926 |
| Thomas Frank | Son | — | 8 | ~1932 |
| Raymond Frank | Son | — | 19 | ~1921 |
| Katherine Frank | Daughter | — | 21 | ~1919 |
| Robert Frank | Son | — | 13 | ~1927 |
| Joseph Frank | Son | — | 22 | ~1918 |
| Margaret Frank | Spouse | — | 50 | ~1890 |
Census Appearances
1930
Sangamon, Illinois
Son, age 4
Sangamon, Illinois · implied b. ~1926 — 12 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Frank |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| 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
Sangamon-County, Illinois
Son, age 13
Sangamon-County, Illinois · implied b. ~1927 — 9 household members
| Surname | Frank |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Island Grove Twp. |
| 1935 Residence (County) | Sangamon |
| Highest Grade | No 8 |
| 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 Robert Frank across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Robert Frank
Son · 1940 · age 13 · b. ~1927 · Illinois
★ You are viewing this record
Sibling
Raymond Frank
Sibling · 1940 · age 19
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Katherine Frank
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ralph Frank
Sibling · 1940 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joseph Frank
Sibling · 1940 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lawrence Frank
Sibling · 1940 · age 14
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Thomas Frank
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 — 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-t0627-00887-00397)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Frank Long | 65 | Head | Farmer | Illinois |
| 2 | Mary Long | 63 | Wife | — | Illinois |
| 3 | John Long | 28 | Son | Farm Hand | Illinois |
| 4 | Wendel Long | 14 | Son | — | Illinois |
| 5 | Wanda Long | 7 | Daughter | — | Illinois |
| 6 | Joseph Frank | 60 | Head | Farmer | Illinois |
| 7 | Margaret Frank | 50 | Wife | — | Illinois |
| 8 | Ralph Frank | 28 | Son | Farmer | Illinois |
| 9 | Joseph Frank | 22 | Son | Farm Hand | Illinois |
| 10 | Katherine Frank | 21 | Daughter | — | Illinois |
| 11 | Raymond Frank | 19 | Son | Farm Hand | Illinois |
| 12 | Lawrence Frank | 14 | Son | — | Illinois |
| 13 | Robert Frank THIS PERSON | 13 | Son | — | Illinois |
| 14 | Thomas Frank | 8 | Son | — | Illinois |
| 15 | John Reichert | 47 | Head | Farmer | Illinois |
| 16 | Maude P. Reichert | 38 | Wife | — | Illinois |
| 17 | Bernard Reichert | 17 | Son | Farm Hand | Illinois |
| 18 | Betty Jane Reichert | 15 | Daughter | — | Illinois |
| 19 | Charles Reichert | 13 | Son | — | Illinois |
| 20 | Bob Reichert | 11 | Son | — | Illinois |
| 21 | James Reichert | 9 | Son | — | Illinois |
| 22 | Joan Ann Reichert | 7 | Daughter | — | Illinois |
| 23 | Mary Reichert | 5 | Daughter | — | Illinois |
| 24 | Florence Reichert | 3 | Daughter | — | Illinois |
| 25 | Selma B. Reichert | 2 | Daughter | — | Illinois |
| 26 | W. M. Horn | 44 | Head | Farmer | Illinois |
| 27 | Pearl Horn | 43 | Wife | — | Illinois |
| 28 | Gerald Horn | 22 | Son | Farm Hand | Illinois |
| 29 | Francis Horn | 21 | Son | Farm Hand | Illinois |
| 30 | Charles Horn | 19 | Son | Farm Hand | Illinois |
| 31 | Vernon Horn | 17 | Son | — | Illinois |
| 32 | Evelyn Horn | 15 | Daughter | — | Illinois |
| 33 | Nancy Horn | 13 | Daughter | — | Illinois |
| 34 | Geraldine Horn | 10 | Daughter | — | Illinois |
| 35 | Ivan Horn | 11 | Son | — | Illinois |
| 36 | Norma Horn | 8 | Daughter | — | Illinois |
| 37 | Betty Horn | 6 | Daughter | — | Illinois |
| 38 | Pearl Horn | 4 | Daughter | — | Illinois |
| 39 | Bobbie Horn | 2 | Son | — | Illinois |
| 40 | Helen Horn | 1 | Daughter | — | Illinois |
Related Census Records
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)