BT
Benjamin Thomas — 1920 US Census Record
Model Tree available1920 United States Federal Census · Rock Island, Illinois
Our Model Tree links this Benjamin Thomas across the 1920, 1930 and 1940 US Censuses in Rock Island, Illinois (XGBoost, ~Confirmed), with identified parents Benjamin & Benjamin — first a son (b.~1918), then head of a 5-person household.
Age 2
b. ~1918
Male
Son
Born: Illinois
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Rock Island, Illinois |
| Surname | Thomas |
| Given Name | Benjamin Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Moline City |
| Est. Birth Year | ~1918 |
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 1920 census.
| Name | Relation to head | Relative to Benjamin | Age | Birth yr |
|---|---|---|---|---|
| Benjamin Thomas | Son | — | 2 | ~1918 |
| Matilda Thomas | Spouse | — | 27 | ~1893 |
| Mildred Thomas | Daughter | — | 6 | ~1914 |
| Benjamin Thomas | Head | — | 32 | ~1888 |
| Dorothy Thomas | Daughter | — | 4 | ~1916 |
Census Appearances
1920
Rock Island, …
Son, age 2
Rock Island, Illinois · implied b. ~1918 — 5 household members
| Surname | Thomas |
| Given Name | Benjamin Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Rock Island, …
Son, age 13
Rock Island, Illinois · implied b. ~1917 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Ben |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Rock-Island-County, Illinois
Other, age 23
Rock-Island-County, Illinois · implied b. ~1917 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Thomas |
| Given Name | Ben |
| Relationship to Head | son-in-law |
| Sex | M |
| Color / Race | White |
| Age | 23 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Moline |
| 1935 Residence (County) | Rock Island |
| Occupation | valve operator |
| Industry | wholesale battery for mfg. |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 1500 |
| Highest Grade | H 4 |
| 1935 Residence | Illinois |
| 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 Benjamin Thomas across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Benjamin Thomas (~0.92 confidence) and father Benjamin Thomas (~0.92 confidence) and mother Matilda Thomas (~0.92 confidence) and mother Matilda Thomas (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Benjamin Thomas
b. ~1888
Source father
● Household
· direct · ~0.92
Father
Benjamin Thomas
b. ~1888
Source father
● Household
· direct · ~0.92
Mother
Matilda Thomas
b. ~1889
Source mother
● Household
· direct · ~0.92
Mother
Matilda Thomas
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Benjamin Thomas
Son · 1920 · age 2 · b. ~1918 · Illinois
★ You are viewing this record
Sibling
Mildred Thomas
Sibling · 1920 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Dorothy Thomas
Sibling · 1920 · age 4
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
1920 US Federal Census — Rock Island, Illinois
Open full size
1920 US Federal Census — Rock Island, Illinois
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu402unit:0044)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Pearl Festchen | 17 | Daughter | — | Greece |
| 52 | Theodora Festchen | 13 | Daughter | — | Greece |
| 53 | Thomas Festchen | 11 | Son | — | Greece |
| 54 | Peter Festchen | 5 | Son | — | Illinois |
| 55 | Olga Festchen | 4 | Daughter | — | Illinois |
| 56 | Steve Festchen | 3 | Son | — | Illinois |
| 57 | Louis Festchen | 1 | Son | — | Illinois |
| 58 | John Lambardis | 25 | Boarder | Machinist | Greece |
| 59 | Andre Rootchimania | 28 | Lodger | Fitting Maker | Greece |
| 60 | George Longris | 25 | Head | Laborer | Greece |
| 61 | George Constantinon | 42 | Boarder | Laborer | Greece |
| 62 | Pete Boulous | 41 | Boarder | Laborer | Greece |
| 63 | Mautinon Gaganis | 38 | Boarder | Laborer | Greece |
| 64 | Steve Thomas | 35 | Boarder | Laborer | Greece |
| 65 | Tom Chastol | 35 | Head | Laborer | Greece |
| 66 | Sam Pitas | 39 | Boarder | Laborer | Greece |
| 67 | Harry Dicke | 39 | Boarder | Laborer | Greece |
| 68 | Gust Piti | 41 | Boarder | Laborer | Greece |
| 69 | — | None | — | — | — |
| 70 | Remi Lurens | 36 | Head | Machine Operator | Belgium |
| 71 | Emma Lurens | 42 | Wife | — | Belgium |
| 72 | Leon Lurens | 15 | Son | Messenger | Belgium |
| 73 | Edmar Lurens | 11 | Son | Clerk | Illinois |
| 74 | Mary Lurens | 8 | Daughter | — | Illinois |
| 75 | Albert Lurens | 6 | Son | — | Illinois |
| 76 | Alice Lurens | 5 | Daughter | — | Illinois |
| 77 | Josephine Lurens | 3 | Daughter | — | Illinois |
| 78 | Lucie Lurens | 1 | Daughter | — | Illinois |
| 79 | Victor Lurens | 30 | Brother | Machine Operator | Belgium |
| 80 | Emil Delhuse | 50 | Lodger | Laborer | Belgium |
| 81 | August Colarys | 50 | Head | Laborer | Belgium |
| 82 | Mary Colarys | 38 | Wife | — | Illinois |
| 83 | Margaret Colarys | 16 | Daughter | — | Illinois |
| 84 | Joseph Colarys | 14 | Son | Porter | Illinois |
| 85 | Clara Colarys | 12 | Daughter | — | Illinois |
| 86 | Marie Colarys | 7 | Daughter | — | Illinois |
| 87 | Gertrude Colarys | 3 | Daughter | — | Illinois |
| 88 | Albert John Colarys | 1 | Son | — | Illinois |
| 89 | Charles Clarys | 49 | Brother | Laborer | Belgium |
| 90 | Cyriel Vandevoort | 29 | Boarder | Laborer | Belgium |
| 91 | Benjamin Thomas | 32 | Head | Assembler | Ohio |
| 92 | Matilda Thomas | 27 | Wife | — | Illinois |
| 93 | Mildred Thomas | 6 | Daughter | — | Illinois |
| 94 | Dorothy Thomas | 4 | Daughter | — | Illinois |
| 95 | Benjamin Jr. Thomas THIS PERSON | 2 | Son | — | Illinois |
| 96 | Peter Swenson | 35 | Head | Laborer | Illinois |
| 97 | Mildred Swenson | 26 | Wife | — | Illinois |
| 98 | Howard Swenson | 3 | Son | — | Illinois |
| 99 | Knut Robinson | 47 | Head | Blacksmith | Sweden |
| 100 | Hannah Robinson | 46 | Wife | — | Sweden |
Pedigree Summary
Benjamin + 2 siblings
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)