LS
Leonard Smith — 1930 US Census Record
Model Tree available1930 United States Federal Census · Dekalb, Illinois
Our Model Tree links this Leonard Smith across the 1910, 1920 and 1930 US Censuses in Dekalb, Illinois (XGBoost, ~Confirmed), with identified parents Arthur & Minnie — first a son (b.~1905), then head of a 4-person household.
Age 25
b. ~1905
Male
Son
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Dekalb, Illinois |
| Surname | Smith |
| Given Name | Leonard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | England |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Occupation | Farm laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Farm Laborer |
| Township / Ward | Sycamore Township |
| Est. Birth Year | ~1905 |
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.
4 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Leonard | Age | Birth yr |
|---|---|---|---|---|
| Arthur Smith | Head | — | 60 | ~1870 |
| Leslie Smith | Son | — | 21 | ~1909 |
| Leonard Smith | Son | — | 25 | ~1905 |
| Minnie Smith | Spouse | — | 54 | ~1876 |
Census Appearances
1910
Dekalb, Illinois
Son, age 5
Dekalb, Illinois · implied b. ~1905 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Leonard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 5 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | England |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Dekalb, Illinois
Son, age 15
Dekalb, Illinois · implied b. ~1905 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Leonard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | England |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Dekalb, Illinois
Son, age 25
Dekalb, Illinois · implied b. ~1905 — 4 household members
| Surname | Smith |
| Given Name | Leonard |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | England |
| Mother's Birthplace | Illinois |
| Occupation | Farm laborer |
| Industry | Farm |
| Class of Worker | W |
| Can Read/Write | Yes |
| 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 Leonard Smith across 3 US Census years (1910, 1920 and 1930) in Dekalb, Illinois, using XGBoost record linkage. Identified parents: father Arthur Smith (~0.92 confidence) and mother Minnie Smith (~0.92 confidence) and mother Minnie Smith (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Arthur Smith
b. ~1871
Source father
● Household
· direct · ~0.92
Mother
Minnie Smith
b. ~1876
Source mother
● Household
· direct · ~0.92
Mother
Minnie Smith
b. ~1876
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Leonard Smith
Son · 1930 · age 25 · b. ~1905 · Illinois
★ You are viewing this record
Sibling
Leslie Smith
Sibling · 1930 · age 21
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 — Dekalb, Illinois
Open full size
1930 US Federal Census — Dekalb, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel510:0683)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Emil W. Cassey | 28 | Head | Caretaker | Illinois |
| 2 | Alice G. Cassey | 27 | Wife | — | Illinois |
| 3 | Elisha M. Royal | 47 | Head | Laborer | Kentucky |
| 4 | Artie Royal | 50 | Wife | — | Kentucky |
| 5 | James L. Royal | 17 | Son | — | Kentucky |
| 6 | Roy L. Royal | 16 | Son | — | Kentucky |
| 7 | Catherine Royal | 14 | Daughter | — | Kentucky |
| 8 | Homer Royal | 8 | Son | — | Kentucky |
| 9 | Nancy E. Royal | 87 | Mother | — | Kentucky |
| 10 | Carl E. Lydig | 45 | Head | Farmer | Illinois |
| 11 | Applia Lydig | 42 | Wife | — | Illinois |
| 12 | Grace Lydig | 17 | Daughter | — | Illinois |
| 13 | Marion Lydig | 6 | Daughter | — | Illinois |
| 14 | Harry Vandenburg | 48 | Head | Farmer | Illinois |
| 15 | Jennie Vandenburg | 43 | Wife | — | Illinois |
| 16 | Ray Vandenburg | 19 | Son | Farm Laborer | Illinois |
| 17 | Bertha Vandenburg | 16 | Daughter | — | Illinois |
| 18 | Bernard Peterson | 36 | Head | Laborer | Illinois |
| 19 | Edna Peterson | 24 | Wife | — | Iowa |
| 20 | Fay Peterson | 5 | Son | — | Illinois |
| 21 | Orville Peterson | 2 | Son | — | Illinois |
| 22 | Doris Peterson | 0 | Daughter | — | Illinois |
| 23 | Severin E. Carlson | 27 | Head | Laborer | Illinois |
| 24 | Hulda Carlson | 24 | Wife | — | Minnesota |
| 25 | Donna R. Carlson | 1 | Daughter | — | Illinois |
| 26 | Charles Kennedy | 32 | Head | Farm Laborer | Indiana |
| 27 | Esther Kennedy | 34 | Wife | — | Illinois |
| 28 | Kenneth Kennedy | 5 | Son | — | Illinois |
| 29 | Deith Kennedy | 5 | Son | — | Illinois |
| 30 | Robert Kennedy | 3 | Son | — | Illinois |
| 31 | Delyle Kennedy | 1 | Son | — | Illinois |
| 32 | Nels G. Jones | 30 | Head | Farmer | Illinois |
| 33 | Hilda Jones | 30 | Wife | — | Illinois |
| 34 | Peter Lindgren | 64 | Father-in-law | — | Sweden |
| 35 | Walter Lindgren | 22 | Brother-in-law | Laborer | Illinois |
| 36 | Carl Ecklund | 49 | Roomer | Laborer | Sweden |
| 37 | Marshall Lee | 47 | Head | Farmer | Illinois |
| 38 | Jessie Lee | 45 | Wife | — | Illinois |
| 39 | Hattie E. Lee | 23 | Daughter | — | Illinois |
| 40 | Carolyn Lee | 22 | Daughter | — | Illinois |
| 41 | Jessie A. Lee | 20 | Daughter | — | Illinois |
| 42 | Marshall Lee | 18 | Son | — | Illinois |
| 43 | Catherine L. Lee | 4 | Daughter | — | Illinois |
| 44 | Henry Carlson | 69 | Head | Farmer | Sweden |
| 45 | Helen Carlson | 62 | Wife | — | Illinois |
| 46 | Jessie E. Carlson | 32 | Daughter | — | Illinois |
| 47 | Arthur Smith | 60 | Head | Farmer | England |
| 48 | Minnie Smith | 54 | Wife | — | Illinois |
| 49 | Leonard Smith THIS PERSON | 25 | Son | Farm Laborer | Illinois |
| 50 | Leslie Smith | 21 | Son | Proprietor | Illinois |
Pedigree Summary
Leonard + 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)