RF
Robert Ferguson — 1940 US Census Record
Model Tree available1940 United States Federal Census · Rock-Island-County, Illinois
Our Model Tree links this Robert Ferguson across the 1920, 1930 and 1940 US Censuses in Rock-Island-County, Illinois (XGBoost, ~Confirmed), with identified parents Anna & Samuel — first a son (b.~1919), then head of a 5-person household.
Age 21
b. ~1919
Male
Son
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Rock-Island-County, Illinois |
| Surname | Ferguson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Rock Island City |
| 1935 Residence (County) | Rock Island |
| Additional Details | |
| Occupation | Salesman |
| Industry | Retail grocery |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 288 |
| Highest Grade | Hs 2 |
| 1935 Residence | Same place |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Salesman |
| Township / Ward | Rock Island City |
| Est. Birth Year | ~1919 |
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 |
|---|---|---|---|---|
| Samuel Ferguson | Head | — | 47 | ~1893 |
| Robert Ferguson | Son | — | 21 | ~1919 |
| Raymond Ferguson | Son | — | 21 | ~1919 |
| Howard Ferguson | Son | — | 17 | ~1923 |
| Anna Ferguson | Spouse | — | 49 | ~1891 |
Census Appearances
1920
Rock Island, …
Son, age 1
Rock Island, Illinois · implied b. ~1919 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ferguson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 1 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Illinois |
| Mother Tongue | Scotch |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Rock Island, …
Son, age 11
Rock Island, Illinois · implied b. ~1919 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Ferguson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Scotland |
| Mother's Birthplace | Illinois |
| Occupation | none |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Rock-Island-County, Illinois
Son, age 21
Rock-Island-County, Illinois · implied b. ~1919 — 5 household members
| Surname | Ferguson |
| Given Name | Robert |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Rock Island City |
| 1935 Residence (County) | Rock Island |
| Occupation | Salesman |
| Industry | Retail grocery |
| Class of Worker | PW |
| Hours Worked | 60 |
| Income (1939) | 288 |
| Highest Grade | Hs 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 Robert Ferguson across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Anna Ferguson (~0.92 confidence) and father Samuel Ferguson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Anna Ferguson
b. ~1891
Source mother
● Household
· direct · ~0.92
Father
Samuel Ferguson
b. ~1894
Source father
● Household
· direct · ~0.92
This person
Anchor record
Robert Ferguson
Son · 1940 · age 21 · b. ~1919 · Illinois
★ You are viewing this record
Sibling
Raymond Ferguson
Sibling · 1940 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Howard Ferguson
Sibling · 1940 · age 17
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 — Rock-Island-County, Illinois
Open full size
1940 US Federal Census — Rock-Island-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00876-00073)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Grant, Eva Grant | 40 | Wife | — | Indiana |
| 2 | Roy Quirk | 46 | Head | Janitor | Kansas |
| 3 | Flora Quirk | 29 | Wife | — | Iowa |
| 4 | Rudolf Quirk | 13 | Son | — | Illinois |
| 5 | Mamie Quirk | 11 | Daughter | — | Illinois |
| 6 | Adolf Quirk | 10 | Son | — | Illinois |
| 7 | Roy Quirk | 8 | Son | — | Illinois |
| 8 | Doris Lee Quirk | 2 | Daughter | — | Illinois |
| 9 | Emil Behrens | 32 | Head | Maintenance | Nebraska |
| 10 | Coletta Behrens | 28 | Wife | — | Nebraska |
| 11 | Jean Behrens | 6 | Daughter | — | Nebraska |
| 12 | Arlene Behrens | 4 | Daughter | — | Illinois |
| 13 | James Behrens | 2 | Son | — | Illinois |
| 14 | Floyd Bellegante | 29 | Head | Molder | Iowa |
| 15 | Beatrice Bellegante | 30 | Wife | — | Iowa |
| 16 | Floyd Jr. Bellegante | 6 | Son | — | Iowa |
| 17 | Betty Jane Bellegante | 4 | Daughter | — | Iowa |
| 18 | Kenneth Brennan | 34 | Head | Deliveryman | Illinois |
| 19 | Jean Brennan | 34 | Wife | Mach. Oper. | Oklahoma |
| 20 | Kenneth Brennan | 10 | Son | — | Illinois |
| 21 | John Brennan | 6 | Son | — | Illinois |
| 22 | Mary F. Craig | 31 | Sister | Mach. Oper. | Oklahoma |
| 23 | Belle Versman | 58 | Head | — | Russia |
| 24 | Daniel Versman | 24 | Son | Mgr. Bakery | Illinois |
| 25 | Virginia Mclaughlin | 23 | Lodger | Housework | Illinois |
| 26 | Adolf Sternlight | 45 | Lodger | Baker | Russia |
| 27 | Walter St. Onge | 55 | Head | Common Laborer | Michigan |
| 28 | Mary St. Onge | 50 | Wife | — | Iowa |
| 29 | Anna St. Onge | 21 | Daughter | Common Laborer | Iowa |
| 30 | Hyman Carp | 48 | Head | Stat. Attendant | Russia |
| 31 | Blanche Carp | 46 | Wife | — | Russia |
| 32 | Shirley Carp | 18 | Daughter | New Worker | Illinois |
| 33 | Samuel B. Ferguson | 47 | Head | Mach. Oper. | Scotland |
| 34 | Anna Ferguson | 49 | Wife | — | Illinois |
| 35 | Robert Ferguson THIS PERSON | 21 | Son | Salesman | Illinois |
| 36 | Raymond Ferguson | 21 | Son | Baseball Pitcher | Illinois |
| 37 | Howard Ferguson | 17 | Son | — | Illinois |
| 38 | John Ames | 54 | Head | Laborer | Arkansas |
| 39 | Nancy Ames | 64 | Wife | — | Missouri |
| 40 | James Brotherton | 30 | Head | Common Laborer | Illinois |
Pedigree Summary
Robert + 2 siblings
Gen 1 · 2 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)