RS
Roger Smith — 1920 US Census Record
Linked across censuses1920 United States Federal Census · Black Hawk, Iowa
Our Model Tree links this Roger Smith across the 1910 and 1920 US Censuses in Black Hawk, Iowa (XGBoost, ~Confirmed) — first a son (b.~1905), then head of a 5-person household.
Age 15
b. ~1905
Male
Son
Born: Iowa
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Black Hawk, Iowa |
| Surname | Smith |
| Given Name | Roger H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Additional Details | |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Dunkerton Town |
| Est. Birth Year | ~1905 |
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 1920 census.
| Name | Relation to head | Relative to Roger | Age | Birth yr |
|---|---|---|---|---|
| Mary Smith | Spouse | — | 57 | ~1863 |
| Jane Smith | Daughter | — | 23 | ~1897 |
| Charles Smith | Head | — | 59 | ~1861 |
| Roger Smith | Son | — | 15 | ~1905 |
| Blanche Smith | Daughter | — | 18 | ~1902 |
Census Appearances
1910
Black Hawk, …
Son, age 6
Black Hawk, Iowa · implied b. ~1904 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Smith |
| Given Name | Roger H |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Iowa |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Black Hawk, …
Son, age 15
Black Hawk, Iowa · implied b. ~1905 — 5 household members
| Surname | Smith |
| Given Name | Roger H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 15 |
| 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 |
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 Roger Smith across 2 US Census years (1910 and 1920) in Black Hawk, Iowa, using XGBoost record linkage.
Show:
This person
Anchor record
Roger Smith
Son · 1920 · age 15 · b. ~1905 · Iowa
★ You are viewing this record
Sibling
Blanche Smith
Sibling · 1920 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Jane Smith
Sibling · 1920 · age 23
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
1920 US Federal Census — Black Hawk, Iowa
Open full size
1920 US Federal Census — Black Hawk, Iowa
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu478unit:0302)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Elmer F. Page | 26 | Son | Blacksmith | Iowa |
| 2 | Howard M. Page | 12 | Son | — | Iowa |
| 3 | Charles H. Smith | 59 | Head | — | Iowa |
| 4 | Mary E. Smith | 57 | Wife | — | Iowa |
| 5 | Jane P. Smith | 23 | Daughter | — | Iowa |
| 6 | Blanche L. Smith | 18 | Daughter | — | Iowa |
| 7 | Roger H. Smith THIS PERSON | 15 | Son | — | Iowa |
| 8 | Jay A. Smith | 36 | Head | Agent | Iowa |
| 9 | Maude E. Smith | 39 | Wife | — | Iowa |
| 10 | Elizabeth M. Smith | 13 | Daughter | — | Iowa |
| 11 | Thelma M. Smith | 11 | Daughter | — | Iowa |
| 12 | Estella Smith | 8 | Daughter | — | Iowa |
| 13 | Joseph H. Graham | 69 | Head | — | Indiana |
| 14 | Alice R. Graham | 63 | Wife | — | Iowa |
| 15 | Charles E. Dewald | 42 | Head | Butter Maker | Iowa |
| 16 | Ruth E. Dewald | 32 | Wife | — | Iowa |
| 17 | Thomas B. Burd | 15 | Brother-in-law | Salesman | Iowa |
| 18 | Esther Irene Burd | 6 | Niece | — | Iowa |
| 19 | Joseph S. Trumbauer | 58 | Head | Contractor | Iowa |
| 20 | Henrietta Trumbauer | 58 | Wife | — | Iowa |
| 21 | Mabel M. Trumbauer | 27 | Daughter | Clerk | Iowa |
| 22 | Ethel C. Trumbauer | 24 | Daughter | Secretary | Iowa |
| 23 | Harriet B. Trumbauer | 30 | Boarder | Teller | Iowa |
| 24 | Benjamin F. Shrimp | 69 | Head | Teamster | Pennsylvania |
| 25 | Edna M. Shrimp | 61 | Wife | — | Illinois |
| 26 | Archie H. Shrimp | 32 | Son | Salesman | Iowa |
| 27 | Nancy M. Stultz | 73 | Head | — | Tennessee |
| 28 | Martha B. Stultz | 53 | Daughter | — | Illinois |
| 29 | Marcel N. Guyer | 46 | Head | Mason | Iowa |
| 30 | Margaret Guyer | 38 | Wife | Laundress | Iowa |
| 31 | Floyd L. Guyer | 17 | Son | — | Iowa |
| 32 | Oakley S. Guyer | 15 | Son | — | Iowa |
| 33 | Merlo M. Guyer | 12 | Son | — | Iowa |
| 34 | Carl E. Klechner | 29 | Head | Cashier | Iowa |
| 35 | Elsie J. Klechner | 29 | Wife | — | Iowa |
| 36 | Oliver F. Alexander | 55 | Head | Salesman | Indiana |
| 37 | Verna G. Alexander | 46 | Wife | — | Iowa |
| 38 | Arthur D. Magee | 40 | Head | Retail Merchant | Iowa |
| 39 | Bertha M. Magee | 37 | Wife | — | Iowa |
| 40 | David Boyce | None | Head | — | — |
| 41 | Nancy Boyce | None | Wife | — | — |
| 42 | Frank D. Holden | 35 | Head | Salesman | New York |
| 43 | Marie U. Holden | 28 | Wife | — | Pennsylvania |
| 44 | Francis J. Holden | 8 | Son | — | Michigan |
| 45 | David M. Holden | 4 | Son | — | Michigan |
| 46 | Jacob Bunn | 86 | Head | — | Ohio |
| 47 | Amanda Bunn | 67 | Wife | — | Pennsylvania |
| 48 | Amos J. Coddington | 36 | Head | Laborer | Iowa |
| 49 | Amanda Coddington | 30 | Wife | — | Iowa |
| 50 | Charlotte Coddington | 5 | Daughter | — | Iowa |
Related Census Records
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1920 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)