IS
Isaac Smith — 1930 US Census Record
Model Tree available1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Isaac Smith across the 1920, 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed), with identified parents Aaron & Lena — first a son (b.~1918), then head of a 6-person household.
Age 12
b. ~1918
Male
Son
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Smith |
| Given Name | Isaac |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Mississippi |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago 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.
6 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Isaac | Age | Birth yr |
|---|---|---|---|---|
| Florence Smith | Daughter | — | 18 | ~1912 |
| Aaron Smith | Head | — | 41 | ~1889 |
| Paul Smith | Son | — | 16 | ~1914 |
| Roscoe Smith | Son | — | 13 | ~1917 |
| Isaac Smith | Son | — | 12 | ~1918 |
| Alma Smith | Spouse | — | 35 | ~1895 |
Census Appearances
1920
Cook, Illinois
Son, age 2
Cook, Illinois · implied b. ~1918 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Isaac |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Kentucky |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 12
Cook, Illinois · implied b. ~1918 — 6 household members
| Surname | Smith |
| Given Name | Isaac |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | Black |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Kentucky |
| Mother's Birthplace | Mississippi |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Son, age 22
Cook-County, Illinois · implied b. ~1918 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Isadore |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 22 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago City |
| 1935 Residence (County) | Cook |
| Occupation | Delivery Boy |
| Industry | Retail Butcher Shop |
| Class of Worker | PW |
| Hours Worked | 44 |
| Income (1939) | 546 |
| Highest Grade | Hs 4 |
| 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 Isaac Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Aaron Smith (~0.92 confidence) and mother Lena Smith (~0.92 confidence) and mother Alma Smith (~0.92 confidence) and mother Georgia Smith (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Aaron Smith
b. ~1889
Source father
● Household
· direct · ~0.92
Mother
Lena Smith
b. ~1892
Source mother
● Household
· direct · ~0.92
Mother
Alma Smith
b. ~1895
Source mother
● Household
· direct · ~0.92
Mother
Georgia Smith
b. ~1896
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Isaac Smith
Son · 1930 · age 12 · b. ~1918 · Illinois
★ You are viewing this record
Sibling
Roscoe Smith
Sibling · 1930 · age 13
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Florence Smith
Sibling · 1930 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Paul Smith
Sibling · 1930 · age 16
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 — Cook, Illinois
Open full size
1930 US Federal Census — Cook, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel419rs:0596)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Milton Valk | 23 | Roomer | Engineer | Tennessee |
| 2 | Sullivan Carruthers | 35 | Head | Laborer Common | Tennessee |
| 3 | Lillie Carruthers | 30 | Wife | — | Tennessee |
| 4 | Thomas Mines | 38 | Head | Laborer Common | Mississippi |
| 5 | Nina Mae Mines | 37 | Wife | — | Tennessee |
| 6 | Doris Barnette | 11 | Daughter | — | Mississippi |
| 7 | Edward Archie | 27 | Head | Car Cleaner | Virginia |
| 8 | Lerlean Archie | 24 | Sister | — | Virginia |
| 9 | Delilah Archie | 20 | Sister | Maid | Virginia |
| 10 | Virginia Archie | 47 | Mother | — | Virginia |
| 11 | Russell Williams | 43 | Head | Insurance Agent | Ohio |
| 12 | Willie Williams | 38 | Wife | — | Mississippi |
| 13 | May J. Garrett | 38 | Head | Seamstress | Maryland |
| 14 | W. M. Mcguinis | 29 | Head | Auto Mechanic | Mississippi |
| 15 | Mattie Mcguinis | 29 | Wife | — | Kentucky |
| 16 | Minnie Pollard | 28 | Sister-in-law | Seamstress | Kentucky |
| 17 | Minnie L. Mcguinis | 1 | Daughter | — | Illinois |
| 18 | Sarah C. Scott | 11 | Daughter | — | Kentucky |
| 19 | Annie M. Pollard | 30 | Sister-in-law | School Teacher | Kentucky |
| 20 | Samuel Mcguinis | 17 | Brother | Porter | Arkansas |
| 21 | Jordan Williams | 23 | Head | Hatter | Mississippi |
| 22 | Helen Williams | 18 | Wife | — | Missouri |
| 23 | George Lee Thomas | 28 | Head | Housework | Georgia |
| 24 | William C. Thomas | 19 | Son | — | Georgia |
| 25 | Rose Henderson | 24 | Roomer | Maid | South Carolina |
| 26 | Willie Henderson | 23 | Husband | Cook | Georgia |
| 27 | Aaron Smith | 41 | Head | Janitor | Kentucky |
| 28 | Alma Smith | 35 | Wife | — | Mississippi |
| 29 | Florence Smith | 18 | Daughter | — | Kentucky |
| 30 | Paul Smith | 16 | Son | — | Illinois |
| 31 | Roscoe Smith | 13 | Son | — | Mississippi |
| 32 | Isaac Smith THIS PERSON | 12 | Son | — | Illinois |
| 33 | Mary Starr | 38 | Head | Cook | Louisiana |
| 34 | Willie Mae Jackson | 25 | Head | — | Mississippi |
| 35 | Scott Gordon | 27 | Roomer | Car Washer | Tennessee |
| 36 | Addie Mills | 53 | Head | Servant | Mississippi |
| 37 | Willie Mae Williams | 24 | Daughter | Ironer | Mississippi |
| 38 | George Dale | 30 | Daughter | Servant | Mississippi |
| 39 | Pearl King | 20 | Daughter | Servant | Mississippi |
| 40 | Leigh Washington | 12 | Daughter | — | Mississippi |
| 41 | Edward Cato | 11 | Son | — | Mississippi |
| 42 | Willie Cato | 10 | Son | — | Mississippi |
| 43 | Lettie Adams | 30 | Head | — | Tennessee |
| 44 | Thomas Adams | 34 | Husband | Auto Mechanic | Tennessee |
| 45 | William Lindsey | 28 | Roomer | Porter | Virginia |
| 46 | Elizabeth Lindsey | 25 | Wife | — | Illinois |
| 47 | John Mitchell | 33 | Head | Packer | Missouri |
| 48 | Helen Baldwin | 16 | Daughter | Operator | Missouri |
| 49 | George Moore | 28 | Head | Laborer | Florida |
| 50 | Mary Moore | 24 | Wife | Maid | Tennessee |
Pedigree Summary
Isaac + 3 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 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)