CS
Calvin Smith — 1930 US Census Record
Model Tree available1930 United States Federal Census · Sangamon, Illinois
Our Model Tree links this Calvin Smith across the 1910, 1920 and 1930 US Censuses in Sangamon, Illinois (XGBoost, ~Confirmed), with identified parents William & William — first a son (b.~1909), then head of a 3-person household.
Age 21
b. ~1909
Male
Son
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Sangamon, Illinois |
| Surname | Smith |
| Given Name | Calvin |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Indiana |
| Additional Details | |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Buffalo Village |
| Est. Birth Year | ~1909 |
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 Calvin | Age | Birth yr |
|---|---|---|---|---|
| Lura Smith | Spouse | — | 59 | ~1871 |
| Calvin Smith | Son | — | 21 | ~1909 |
| William Smith | Head | — | 73 | ~1857 |
Census Appearances
1910
Logan, Illinois
Son, age 2
Logan, Illinois · implied b. ~1908 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Calvin L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Indiana |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Sangamon, Illinois
Son, age 11
Sangamon, Illinois · implied b. ~1909 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Calvin |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Indiana |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Sangamon, Illinois
Son, age 21
Sangamon, Illinois · implied b. ~1909 — 3 household members
| Surname | Smith |
| Given Name | Calvin |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 21 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Maryland |
| Mother's Birthplace | Indiana |
| Can Read/Write | Yes |
| Veteran | No |
| 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 Calvin Smith across 3 US Census years (1910, 1920 and 1930) in 2 locations, using XGBoost record linkage. Identified parents: father William Smith (~0.92 confidence) and father William Smith (~0.92 confidence) and father William Smith (~0.92 confidence) and mother Julia Smith (~0.92 confidence) and mother Lula Smith (~0.92 confidence) and mother Lura Smith (~0.92 confidence). The pedigree spans 1 generation with 6 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
William Smith
b. ~1856
Source father
● Household
· direct · ~0.92
Father
William Smith
b. ~1857
Source father
● Household
· direct · ~0.92
Father
William Smith
b. ~1857
Source father
● Household
· direct · ~0.92
Mother
Julia Smith
b. ~1869
Source mother
● Household
· direct · ~0.92
Mother
Lula Smith
b. ~1871
Source mother
● Household
· direct · ~0.92
Mother
Lura Smith
b. ~1871
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Calvin Smith
Son · 1930 · age 21 · b. ~1909 · Illinois
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Sangamon, Illinois
Open full size
1930 US Federal Census — Sangamon, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel558:0397)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | John Ralston | 71 | Head | — | Kentucky |
| 2 | Irene Ralston | 41 | Daughter | Teacher | Illinois |
| 3 | Gary Ralston | 18 | Son | — | Illinois |
| 4 | Annabell Ralston | 15 | Son | — | Illinois |
| 5 | Mary Ellen Ralston | 13 | Daughter | — | Illinois |
| 6 | Lora Braddy | 75 | Head | Laborer | Illinois |
| 7 | Juliet Matthews | 54 | Head | — | Illinois |
| 8 | Robert Matthews | 64 | Husband | Farmer | Illinois |
| 9 | Ben F. Edwards | 61 | Head | Trucker | Illinois |
| 10 | Bertha Edwards | 41 | Wife | — | Illinois |
| 11 | Earl J. Craig | 32 | Head | Laborer | Illinois |
| 12 | Rachel Craig | 26 | Wife | — | Illinois |
| 13 | Mary J. Craig | 5 | Daughter | — | Illinois |
| 14 | Jane A. Craig | 1 | Daughter | — | Illinois |
| 15 | William Smith | 73 | Head | Farmer | Maryland |
| 16 | Lura Smith | 59 | Wife | — | Indiana |
| 17 | Calvin Smith THIS PERSON | 21 | Son | — | Illinois |
| 18 | Howard Carpenter | 70 | Head | — | Illinois |
| 19 | Ellen Carpenter | 63 | Wife | — | Illinois |
| 20 | Roy Carpenter | 43 | Son | Farmer | Illinois |
| 21 | Patrick Mcgrath | 52 | Head | Collector | Illinois |
| 22 | Frances Mcgrath | 46 | Wife | — | Illinois |
| 23 | Jean Mcgrath | 15 | Daughter | — | Illinois |
| 24 | Albert Jacob | 16 | Boarder | — | Illinois |
| 25 | James Hendricks | 38 | Head | Laborer | Tennessee |
| 26 | Lydia Hendricks | 31 | Wife | — | Illinois |
| 27 | Delia Mcgrann | 69 | Head | — | Ireland |
| 28 | Alice Mcgrann | 35 | Daughter | — | Illinois |
| 29 | Edward Mcgrann | 33 | Son | Cashier | Illinois |
| 30 | Clarence Mcgrath | 41 | Head | Laborer | Illinois |
| 31 | Lila Mcgrath | 45 | Wife | — | Illinois |
| 32 | Elizabeth Mcgrath | 19 | Daughter | Operator | Illinois |
| 33 | Thomas Phillips | 58 | Head | Carpenter | Illinois |
| 34 | Emma Phillips | 40 | Wife | — | Kentucky |
| 35 | Van Phillips | 18 | Son | Laborer | Illinois |
| 36 | Ruth Phillips | 16 | Daughter | — | Illinois |
| 37 | Lois Phillips | 14 | Daughter | — | Illinois |
| 38 | Margaret Phillips | 11 | Daughter | — | Illinois |
| 39 | Virginia Phillips | 5 | Daughter | — | Illinois |
| 40 | Ida Wilson | 68 | Head | — | Illinois |
| 41 | Dale Roberts | 10 | Grandson | — | Illinois |
| 42 | Russell Edwards | 36 | Head | Truck Driver | Illinois |
| 43 | Ruth Edwards | 31 | Wife | — | Illinois |
| 44 | Wayne Edwards | 7 | Son | — | Illinois |
| 45 | Harry Todd | 29 | Head | Agent | Illinois |
| 46 | Ida Todd | 22 | Wife | — | Illinois |
| 47 | John Jordan | 71 | Head | — | Kentucky |
| 48 | Elizabeth Jordan | 71 | Wife | — | Kentucky |
| 49 | Robert Jordan | 30 | Son | Painter | Kentucky |
| 50 | Ernest Wright | 33 | Head | — | Virginia |
Pedigree Summary
Calvin
Gen 1 · 6 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)