IS
Irene Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Macon-County, Illinois
Our Model Tree links this Irene Smith across the 1920, 1930 and 1940 US Censuses in Macon-County, Illinois (XGBoost, ~Confirmed), with identified parents Rena & Sena — first a daughter (b.~1904), then head of a 3-person household.
Age 36
b. ~1904
Female
Daughter
Born: Illinois
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Macon-County, Illinois |
| Surname | Smith |
| Given Name | Irene |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Decatur City |
| 1935 Residence (County) | Macon |
| Additional Details | |
| Occupation | Teacher |
| Industry | Business College |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Teacher |
| Township / Ward | Decatur City |
| Est. Birth Year | ~1904 |
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 1940 census.
| Name | Relation to head | Relative to Irene | Age | Birth yr |
|---|---|---|---|---|
| Irene Smith | Daughter | — | 36 | ~1904 |
| Rena Smith | Head | — | 70 | ~1870 |
| Robert Smith | Son | — | 48 | ~1892 |
Census Appearances
1920
Macon, Illinois
Daughter, age 16
Macon, Illinois · implied b. ~1904 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Irene |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 16 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Macon, Illinois
Daughter, age 25
Macon, Illinois · implied b. ~1905 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Irene |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 25 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Occupation | Bookkeeper |
| Industry | Bottle Caps Co |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Macon-County, Illinois
Daughter, age 36
Macon-County, Illinois · implied b. ~1904 — 3 household members
| Surname | Smith |
| Given Name | Irene |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 36 |
| Marital Status | Single |
| Birthplace | Illinois |
| 1935 Residence (City) | Decatur City |
| 1935 Residence (County) | Macon |
| Occupation | Teacher |
| Industry | Business College |
| Class of Worker | PW |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | H 4 |
| 1935 Residence | Same House |
| 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 Irene Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: mother Rena Smith (~0.92 confidence) and mother Sena Smith (~0.92 confidence) and mother Lena Smith (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Mother
Rena Smith
b. ~1870
Source mother
● Household
· direct · ~0.92
Mother
Sena Smith
b. ~1870
Source mother
● Household
· direct · ~0.92
Mother
Lena Smith
b. ~1870
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Irene Smith
Daughter · 1940 · age 36 · b. ~1904 · Illinois
★ You are viewing this record
Sibling
Robert Smith
Sibling · 1940 · age 48
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
1940 US Federal Census — Macon-County, Illinois
Open full size
1940 US Federal Census — Macon-County, Illinois
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00843-00331)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Catherine Lyon | 27 | Daughter | Registered Nurse | Illinois |
| 2 | Elizabeth Lyon | 23 | Daughter | — | Illinois |
| 3 | George Ross | 28 | Head | Electrician | Indiana |
| 4 | Betty D. Ross | 27 | Wife | Librarian | Indiana |
| 5 | Louis S. Venebee | 27 | Head | Electrician | Illinois |
| 6 | Marjorie R. Venebee | 26 | Wife | Secretary | Illinois |
| 7 | Beatrice Westlake | 37 | Head | Special Worker | Illinois |
| 8 | Carl S. Muhlenbruck | 58 | Head | Salesman | Indiana |
| 9 | Clara Muhlenbruck | 57 | Wife | — | Indiana |
| 10 | Joseph Glecken | 35 | Head | Truck Driver | Illinois |
| 11 | Florence Glecken | 33 | Wife | — | Illinois |
| 12 | Janet Elaine Glecken | 2 | Daughter | — | Illinois |
| 13 | John Funk | 24 | Lodger | Book Keeper | Illinois |
| 14 | Wm. C. Payne | 80 | Head | — | Ohio |
| 15 | Mary L. Payne | 75 | Wife | — | Illinois |
| 16 | Otis L. West | 50 | Daughter | Secretary | Illinois |
| 17 | Mabel L. Payne | 45 | Daughter | Assistant Cashier | Illinois |
| 18 | Rena H. Smith | 70 | Head | — | Illinois |
| 19 | Irene Smith THIS PERSON | 36 | Daughter | Teacher | Illinois |
| 20 | Robert W. Smith | 48 | Son | — | Illinois |
| 21 | Adolph Schloeffel | 43 | Head | Draftsman | Illinois |
| 22 | Gladys Schloeffel | 40 | Wife | — | Illinois |
| 23 | Robert Harris | 26 | Head | Prod. & Dev. Maker | Illinois |
| 24 | May R. Harris | 24 | Wife | — | Illinois |
| 25 | Robert Harris | 2 | Son | — | Illinois |
| 26 | Ana B. Huffman | 35 | Head | Teacher | Illinois |
| 27 | Florence Huffman | 41 | Lodger | Teacher | Illinois |
| 28 | Ruth Huffman | 38 | Lodger | Teacher | Illinois |
| 29 | Claude E. Neichman | 48 | Head | Linotype Oper. | Illinois |
| 30 | Vivian Neichman | 52 | Wife | — | Illinois |
| 31 | Sarah (A.) Neichman | 14 | Daughter | — | Illinois |
| 32 | George Barling | 52 | Head | Finishing Dept. | England |
| 33 | Bessie Barling | 51 | Wife | — | Illinois |
| 34 | Parker Peterson | 33 | Head | Salesman | Minnesota |
| 35 | Carolyn Peterson | 19 | Wife | Stenographer | Iowa |
| 36 | J. W. Hodge | 73 | Head | — | Illinois |
| 37 | Harriett Hodge | 72 | Wife | — | Illinois |
| 38 | Ross Hodge | 43 | Son | Coach Dept. | Illinois |
| 39 | Chester A. Knierim | 35 | Head | Broker | Missouri |
| 40 | Colburn Knierim | 28 | Wife | — | Missouri |
Pedigree Summary
Irene + 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 1940 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)