RC
Robert Curtis — 1930 US Census Record
Model Tree available1930 United States Federal Census · Cass, Iowa
Our Model Tree links this Robert Curtis across the 1920, 1930 and 1940 US Censuses in Cass, Iowa (XGBoost, ~Confirmed), with identified parents H & Horatio — first a son (b.~1911), then head of a 5-person household.
Age 19
b. ~1911
Male
Son
Born: Iowa
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cass, Iowa |
| Surname | Curtis |
| Given Name | Robert R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Bear Grove Township |
| Est. Birth Year | ~1911 |
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.
5 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Robert | Age | Birth yr |
|---|---|---|---|---|
| Robert Curtis | Son | — | 19 | ~1911 |
| Burton Curtis | Son | — | 15 | ~1915 |
| H Curtis | Head | — | 66 | ~1864 |
| Cora Curtis | Spouse | — | 50 | ~1880 |
| Eugene Curtis | Son | — | 4 | ~1926 |
Census Appearances
1920
Cass, Iowa
Son, age 8
Cass, Iowa · implied b. ~1912 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Curtis |
| Given Name | Robert R. |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 8 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Cass, Iowa
Son, age 19
Cass, Iowa · implied b. ~1911 — 5 household members
| Surname | Curtis |
| Given Name | Robert R. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 19 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1940
Cass-County, Iowa
Head, age 28
Cass-County, Iowa · implied b. ~1912 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Curtis |
| Given Name | Robt R |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Single |
| Birthplace | Iowa |
| 1935 Residence (City) | Bear Grove Twp |
| 1935 Residence (County) | Cass |
| Occupation | Farm operator |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 60 |
| Income (1939) | 0 |
| Highest Grade | H 3 |
| 1935 Residence | Same place |
| 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 Robert Curtis across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father H Curtis (~0.92 confidence) and father Horatio Curtis (~0.92 confidence) and mother Cora Curtis (~0.92 confidence). The pedigree spans 1 generation with 3 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
H Curtis
b. ~1864
Source father
● Household
· direct · ~0.92
Father
Horatio Curtis
b. ~1865
Source father
● Household
· direct · ~0.92
Mother
Cora Curtis
b. ~1879
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Robert Curtis
Son · 1930 · age 19 · b. ~1911 · Iowa
★ You are viewing this record
Sibling
Burton Curtis
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Eugene Curtis
Sibling · 1930 · age 4
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 — Cass, Iowa
Open full size
1930 US Federal Census — Cass, Iowa
Page Contents
50 people indexed on this census page (ia:1930:iowacensus00reel646:0616)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | John Shaw | 59 | Head | Farmer | Iowa |
| 52 | Mary L. Shaw | 62 | Wife | — | Iowa |
| 53 | John Kendall Shaw | 27 | Son | Farm Laborer | Iowa |
| 54 | Ralph H. Shaw | 20 | Son | — | Iowa |
| 55 | John Hamelikus | 52 | Servant | Farm Laborer | Germany |
| 56 | Joe Stephens | 52 | Head | Farmer | Indiana |
| 57 | Irene Stephens | 38 | Wife | — | Iowa |
| 58 | Lee Stephens | 21 | Son | — | Idaho |
| 59 | Colleen Stephens | 14 | Daughter | — | Iowa |
| 60 | Dale Stephens | 6 | Son | — | Iowa |
| 61 | Kathleen Stephens | 4 | Daughter | — | Iowa |
| 62 | H. H. Curtis | 66 | Head | Farmer | Iowa |
| 63 | Cora A. Curtis | 50 | Wife | — | Iowa |
| 64 | Robert R. Curtis THIS PERSON | 19 | Son | — | Iowa |
| 65 | Burton W. Curtis | 15 | Son | — | Iowa |
| 66 | Eugene D. Curtis | 4 | Son | — | Iowa |
| 67 | Chas. W. Taylor | 49 | Head | Farmer | Virginia |
| 68 | Maggie Taylor | 37 | Wife | — | Germany |
| 69 | Dolf Doggett | 47 | Head | Farmer | Iowa |
| 70 | Katherine Daller | 44 | Servant | — | Germany |
| 71 | Howard Keim | 17 | Boarder | — | Iowa |
| 72 | George Heisler | 63 | Head | Farmer | Iowa |
| 73 | Katherine Heisler | 58 | Wife | — | Iowa |
| 74 | Loretta Heisler | 22 | Daughter | School Teacher | Iowa |
| 75 | Gail Heisler | 20 | Son | — | Iowa |
| 76 | George Lee | 22 | Servant | Farm Laborer | Missouri |
| 77 | A. M. Mcfadden | 47 | Head | Farmer | Iowa |
| 78 | Amy Mcfadden | 52 | Wife | — | Iowa |
| 79 | Gradon Mcfadden | 15 | Son | — | Iowa |
| 80 | Raymond Peters | 33 | Head | Farmer | Iowa |
| 81 | Madge Peters | 32 | Wife | — | Iowa |
| 82 | Billy Peters | 5 | Son | — | Iowa |
| 83 | Chas. Thorne | 60 | Head | Farmer | Illinois |
| 84 | Edna Thorne | 53 | Wife | — | Iowa |
| 85 | Rachel Webster | 77 | Mother-in-law | — | Vermont |
| 86 | H. A. Matt | 61 | Head | Farmer | Canada Eng |
| 87 | Bessie E. Matt | 50 | Wife | — | Iowa |
| 88 | Floyd A. Matt | 21 | Son | Farm Laborer | Montana |
| 89 | Pauline A. Matt | 19 | Daughter | — | Iowa |
| 90 | J. M. Nealy | 59 | Head | Farmer | Iowa |
| 91 | Etta Nealy | 54 | Wife | — | Iowa |
| 92 | Erma Nealy | 28 | Daughter | — | Iowa |
| 93 | Grace Nealy | 24 | Daughter | Teacher | Iowa |
| 94 | Frances Nealy | 20 | Daughter | Teacher | Iowa |
| 95 | R. H. Christensen | 35 | Head | Farmer | Iowa |
| 96 | Gladys Christensen | 24 | Wife | — | Iowa |
| 97 | Billy Christensen | 2 | Son | — | Iowa |
| 98 | August Carlson | 60 | Head | Farmer | Iowa |
| 99 | Elida Carlson | 76 | Wife | — | Illinois |
| 100 | Andrew Carlson | 49 | Brother | Farm Laborer | Iowa |
Pedigree Summary
Robert + 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 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)