CS
Clara Smith — 1940 US Census Record
Model Tree available1940 United States Federal Census · Clinton-County, Iowa
Our Model Tree links this Clara Smith across the 1920, 1930 and 1940 US Censuses in Clinton-County, Iowa (XGBoost, ~Confirmed), with identified parents Julius & Julius — first a daughter (b.~1903), then head of a 4-person household.
Age 37
b. ~1903
Female
Daughter
Born: Iowa
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Clinton-County, Iowa |
| Surname | Smith |
| Given Name | Clara |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Clinton City |
| 1935 Residence (County) | Clinton |
| Additional Details | |
| Occupation | Bobbin Winder |
| Industry | Wire Company |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 600 |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Bobbin Winder |
| Township / Ward | Clinton City |
| Est. Birth Year | ~1903 |
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 1940 census.
| Name | Relation to head | Relative to Clara | Age | Birth yr |
|---|---|---|---|---|
| Clara Smith | Daughter | — | 37 | ~1903 |
| Anna Smith | Daughter | — | 50 | ~1890 |
| Martha Smith | Daughter | — | 40 | ~1900 |
| Christine Smith | Head | — | 72 | ~1868 |
Census Appearances
1920
Clinton, Iowa
Daughter, age 17
Clinton, Iowa · implied b. ~1903 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Clara |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Danish |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Clinton, Iowa
Daughter, age 27
Clinton, Iowa · implied b. ~1903 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Clara |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 27 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Denmark |
| Mother's Birthplace | Denmark |
| Occupation | Weaver |
| Industry | Wire Cloth factory |
| Class of Worker | W |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Clinton-County, Iowa
Daughter, age 37
Clinton-County, Iowa · implied b. ~1903 — 4 household members
| Surname | Smith |
| Given Name | Clara |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 37 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Clinton City |
| 1935 Residence (County) | Clinton |
| Occupation | Bobbin Winder |
| Industry | Wire Company |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 600 |
| Highest Grade | 8 |
| 1935 Residence | Same House |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
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 Clara Smith across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Julius Smith (~0.92 confidence) and father Julius Smith (~0.92 confidence) and mother Christine Smith (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Julius Smith
b. ~1866
Source father
● Household
· direct · ~0.92
Father
Julius Smith
b. ~1856
Source father
● Household
· direct · ~0.92
Mother
Christine Smith
b. ~1868
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Clara Smith
Daughter · 1940 · age 37 · b. ~1903 · Iowa
★ You are viewing this record
Sibling
Anna Smith
Sibling · 1940 · age 50
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martha Smith
Sibling · 1940 · age 40
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 — Clinton-County, Iowa
Open full size
1940 US Federal Census — Clinton-County, Iowa
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01150-00636)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Richard St Claire | 10 | Son | — | Iowa |
| 42 | Betty Lou St Claire | 4 | Daughter | — | Iowa |
| 43 | Anton C. Mohr | 53 | Head | Shipping Clerk | Iowa |
| 44 | Margaret B. Mohr | 53 | Wife | — | Germany |
| 45 | Leroy A. Mohr | 17 | Son | — | Iowa |
| 46 | Leonard B. Mohr | 12 | Son | — | Iowa |
| 47 | Hans E. Hansen | 61 | Head | Service Man | Iowa |
| 48 | Nita B. Hansen | 62 | Wife | — | New Zealand |
| 49 | Helen Jean Hansen | 21 | Daughter | Beauty Operator | Iowa |
| 50 | Jessie B. Mcallister | 68 | Head | — | Iowa |
| 51 | Lucille Mcallister | 45 | Daughter | Teacher | Iowa |
| 52 | Mildred Mcallister | 39 | Daughter | Teacher | Iowa |
| 53 | Robert Mcallister | 27 | Son | Chemist | Iowa |
| 54 | Alice Mcallister | 23 | Daughter | — | Iowa |
| 55 | Rosalie Collins | 45 | Head | Owner | Iowa |
| 56 | Mike Rajcevich | 47 | Head | Car Repairer | Yugoslavia |
| 57 | Mildred Rajcevich | 45 | Wife | — | Yugoslavia |
| 58 | Joseph Rajcevich | 25 | Son | Laborer | Illinois |
| 59 | Ruby Rajcevich | 24 | Daughter | Sewer | Illinois |
| 60 | Sophie Rajcevich | 20 | Daughter | Sewer | Illinois |
| 61 | Mildred Rajcevich | 17 | Daughter | Sewer | Iowa |
| 62 | George Rajcevich | 19 | Son | — | Iowa |
| 63 | Helen Rajcevich | 14 | Daughter | — | Iowa |
| 64 | Eli Rajcevich | 13 | Son | — | Iowa |
| 65 | John Rajcevich | 12 | Son | — | Iowa |
| 66 | Dorothy Rajcevich | 10 | Daughter | — | Illinois |
| 67 | Nick Rajcevich | 6 | Son | — | Iowa |
| 68 | Christine Smith | 72 | Head | — | Denmark |
| 69 | Anna B. Smith | 50 | Daughter | Spooler | Iowa |
| 70 | Martha Smith | 40 | Daughter | Spooler | Iowa |
| 71 | Clara Smith THIS PERSON | 37 | Daughter | Bobbin Winder | Iowa |
| 72 | John E. Krajnovich | 46 | Head | Car Repairer | Yugoslavia |
| 73 | Helen Krajnovich | 50 | Wife | — | Yugoslavia |
| 74 | Violet Krajnovich | 18 | Daughter | — | Iowa |
| 75 | Viola Krajnovich | 18 | Daughter | — | Iowa |
| 76 | John S. Turkes | 55 | Head | Boilermaker Helper | Roumania |
| 77 | Helen Turkes | 52 | Wife | — | Roumania |
| 78 | Louise Turkes | 25 | Son | Attendant | Iowa |
| 79 | Theron P. De Loe | 34 | Head | Process Worker | Iowa |
| 80 | Alice De Loe | 29 | Wife | — | Iowa |
Related Census Records
Pedigree Summary
Clara + 2 siblings
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)