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Donald Lewis — 1930 US Census Record
Model Tree available1930 United States Federal Census · Knox, Illinois
Our Model Tree links this Donald Lewis across the 1920, 1930 and 1940 US Censuses in Knox, Illinois (XGBoost, ~Confirmed), with identified parents Arthur & Bomba — first a son (b.~1912), then head of a 3-person household.
Age 18
b. ~1912
Male
Son
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Knox, Illinois |
| Surname | Lewis |
| Given Name | Donald B |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Occupation | Office work |
| Industry | Stock yards |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Office Work |
| Township / Ward | Galesburg City |
| Est. Birth Year | ~1912 |
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.
3 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Donald | Age | Birth yr |
|---|---|---|---|---|
| Bomba Lewis | Head | — | 44 | ~1886 |
| Mary Lewis | Daughter | — | 9 | ~1921 |
| Donald Lewis | Son | — | 18 | ~1912 |
Census Appearances
1920
Knox, Illinois
Son, age 8
Knox, Illinois · implied b. ~1912 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Donald P. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Knox, Illinois
Son, age 18
Knox, Illinois · implied b. ~1912 — 3 household members
| Surname | Lewis |
| Given Name | Donald B |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 18 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Office work |
| Industry | Stock yards |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Knox-County, Illinois
Head, age 28
Knox-County, Illinois · implied b. ~1912 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Lewis |
| Given Name | Deald |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Williamsfield Village |
| 1935 Residence (County) | Knox |
| Occupation | General Trucking |
| Industry | Various companies |
| Class of Worker | PW |
| Hours Worked | 20 |
| Income (1939) | 420 |
| Highest Grade | No 8 |
| 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 Donald Lewis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Arthur Lewis (~0.92 confidence) and father Bomba Lewis (~0.92 confidence) and mother Emma Lewis (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Arthur Lewis
b. ~1880
Source father
● Household
· direct · ~0.92
Father
Bomba Lewis
b. ~1886
Source father
● Household
· direct · ~0.92
Mother
Emma Lewis
b. ~1888
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Donald Lewis
Son · 1930 · age 18 · b. ~1912 · Illinois
★ You are viewing this record
Sibling
Mary Lewis
Sibling · 1930 · age 9
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
1930 US Federal Census — Knox, Illinois
Open full size
1930 US Federal Census — Knox, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel527:0590)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | Maude E Clay | 44 | Wife | — | Iowa |
| 52 | Millard S Clay | 23 | Son | Salesman | Illinois |
| 53 | Alyce L Clay | 20 | Daughter | Operator | Illinois |
| 54 | Kathryn M Clay | 17 | Daughter | — | Illinois |
| 55 | Frank G Foster | 54 | Head | Brakeman | Iowa |
| 56 | Esther E Foster | 51 | Wife | — | Illinois |
| 57 | Leonard A Foster | 20 | Son | — | Illinois |
| 58 | Earl G Foster | 12 | Son | — | Illinois |
| 59 | Axel E Johnson | 42 | Head | Shoe Repairer | Sweden |
| 60 | Ellen M Johnson | 43 | Wife | — | Sweden |
| 61 | Florence E Johnson | 11 | Daughter | — | Illinois |
| 62 | Marie E Johnson | 9 | Son | — | Illinois |
| 63 | Patricia J Johnson | 6 | Daughter | — | Illinois |
| 64 | Arthur Carlson | 41 | Head | Salesman | Illinois |
| 65 | Agda Carlson | 42 | Wife | — | Sweden |
| 66 | Russell Carlson | 17 | Son | Clerk | Illinois |
| 67 | Frank A Frost | 56 | Head | — | Illinois |
| 68 | Anna F Frost | 50 | Wife | — | Illinois |
| 69 | Laverle Frost | 25 | Daughter | — | Illinois |
| 70 | Eleanor Frost | 21 | Daughter | Stenographer | Illinois |
| 71 | William Warner | 30 | Head | Mechanic | Illinois |
| 72 | Frida Warner | 27 | Wife | — | Illinois |
| 73 | Oscar W Carlson | 33 | Head | Salesman | Illinois |
| 74 | Margaret L Carlson | 30 | Wife | — | Illinois |
| 75 | Kate E Chase | 60 | Head | Teacher | Illinois |
| 76 | Zora E Chase | 58 | Sister | — | Illinois |
| 77 | Nellie E Chase | 56 | Sister | Teacher | Illinois |
| 78 | Frank Luman | 71 | Head | Collector | Illinois |
| 79 | Mary E Luman | 74 | Wife | — | Illinois |
| 80 | Earl E Pulver | 37 | Head | Truck Driver | Illinois |
| 81 | Lucy R Pulver | 31 | Wife | — | Illinois |
| 82 | Harry E Fowler | 43 | Brother-in-law | Stationary Engineer | Illinois |
| 83 | Lillian Fowler | 36 | Sister | — | Texas |
| 84 | Wesley M Fowler | 4 | Nephew | — | Illinois |
| 85 | John A Nelson | 63 | Head | Fireman | Sweden |
| 86 | Mathilda Nelson | 68 | Wife | — | Sweden |
| 87 | Julia M Nelson | 43 | Daughter | Assistant | Illinois |
| 88 | Henry J Nelson | 39 | Son | Pipe Fitter | Illinois |
| 89 | Matthew S Sparr | 62 | Head | Salesman | Illinois |
| 90 | Mina V Sparr | 45 | Wife | — | Illinois |
| 91 | Marjorie L Sparr | 16 | Daughter | — | Illinois |
| 92 | Bomba N Lewis | 44 | Head | — | Illinois |
| 93 | Donald B Lewis THIS PERSON | 18 | Son | Office Work | Illinois |
| 94 | Mary Louise Lewis | 9 | Daughter | — | Illinois |
| 95 | Grant E Archibald | 20 | Head | Checker | Iowa |
| 96 | Leona M Archibald | 17 | Wife | — | Illinois |
| 97 | Roe W Burrell | 31 | Head | Truck Driver | Illinois |
| 98 | Edith J Burrell | 24 | Wife | — | Illinois |
| 99 | Ethel V Burrell | 8 | Daughter | — | Illinois |
| 100 | Virginia Burrell | 7 | Daughter | — | Illinois |
Pedigree Summary
Donald + 1 sibling
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 1930 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)