SJ
Sidney Johnson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Boone, Iowa
Our Model Tree links this Sidney Johnson across the 1920 and 1930 US Censuses in Boone, Iowa (XGBoost, ~Confirmed) — first a son (b.~1913), then head of a 8-person household.
Age 17
b. ~1913
Male
Son
Born: Iowa
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Boone, Iowa |
| Surname | Johnson |
| Given Name | Sidney E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Sweden |
| Additional Details | |
| Can Read/Write | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Township / Ward | Garden Township |
| Est. Birth Year | ~1913 |
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.
8 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Sidney | Age | Birth yr |
|---|---|---|---|---|
| Elizabeth Johnson | Spouse | — | 43 | ~1887 |
| Ernest Johnson | Head | — | 49 | ~1881 |
| Edward Johnson | Son | — | 12 | ~1918 |
| Walter Johnson | Son | — | 15 | ~1915 |
| Ben Johnson | Son | — | 10 | ~1920 |
| Elizabeth Johnson | Daughter | — | 14 | ~1916 |
| Sidney Johnson | Son | — | 17 | ~1913 |
| Ruth Johnson | Daughter | — | 8 | ~1922 |
Census Appearances
1920
Boone, Iowa
Son, age 6
Boone, Iowa · implied b. ~1914 — 9 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Sidney |
| Relationship to Head | son |
| Sex | M |
| Color / Race | White |
| Age | 6 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Sweden |
| Occupation | none |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1930
Boone, Iowa
Son, age 17
Boone, Iowa · implied b. ~1913 — 8 household members
| Surname | Johnson |
| Given Name | Sidney E |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Iowa |
| Mother's Birthplace | Sweden |
| Can Read/Write | 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 Sidney Johnson across 2 US Census years (1920 and 1930) in Boone, Iowa, using XGBoost record linkage.
Show:
This person
Anchor record
Sidney Johnson
Son · 1930 · age 17 · b. ~1913 · Iowa
★ You are viewing this record
Sibling
Ben Johnson
Sibling · 1930 · age 10
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Edward Johnson
Sibling · 1930 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Walter Johnson
Sibling · 1930 · age 15
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Ruth Johnson
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Elizabeth Johnson
Sibling · 1930 · age 14
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 — Boone, Iowa
Open full size
1930 US Federal Census — Boone, Iowa
Page Contents
50 people indexed on this census page (ia:1930:iowacensus00reel643:0931)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Loyd E Dickerson | 12 | Step son | — | Iowa |
| 2 | Harvey Jr Dickerson | 10 | Step son | — | Iowa |
| 3 | William R Carpenter | 70 | Fatherlaw | Farm Laborer | Illinois |
| 4 | Elmer R Hurlene | 43 | Head | Farmer | Iowa |
| 5 | Bessie Hurlene | 45 | Wife | Nurse | Iowa |
| 6 | Mary E Hurlene | 9 | Daughter | — | Iowa |
| 7 | Elmer J Hurlene | 5 | Son | — | Iowa |
| 8 | April I Hurlene | 1 | Daughter | — | Kansas |
| 9 | William F Hancock | 28 | Head | Farm Laborer | Ohio |
| 10 | Mabel A Hancock | 29 | Wife | Kas Mstr Gy | Iowa |
| 11 | Myrtle J Hancock | 5 | Daughter | — | Iowa |
| 12 | Billy J Hancock | 3 | Son | — | Iowa |
| 13 | Sheridan Grunstead | 32 | Head | Farmer | Illinois |
| 14 | Margaret Grunstead | 31 | Wife | — | Illinois |
| 15 | Virginia J Grunstead | 10 | Daughter | — | Illinois |
| 16 | Marianne R Grunstead | 8 | Daughter | — | Iowa |
| 17 | Vernice J Grunstead | 6 | Daughter | — | Iowa |
| 18 | Sheridan P Grunstead | 3 | Son | — | Iowa |
| 19 | Mary A Grunstead | 0 | Daughter | — | Iowa |
| 20 | Erick Grunstead | 71 | Father | — | Illinois |
| 21 | Martha Grunstead | 70 | Mother | — | Illinois |
| 22 | Wigot E Young | 38 | Head | Farmer | Sweden |
| 23 | Florence E Young | 36 | Wife | — | Illinois |
| 24 | Irene L Young | 9 | Daughter | — | Iowa |
| 25 | Ena L Young | 7 | Daughter | — | Iowa |
| 26 | Virgil Pruitt | 25 | Head | Farm Laborer | Iowa |
| 27 | Bernice Z Pruitt | 22 | Wife | — | Iowa |
| 28 | Janice R Pruitt | 2 | Daughter | — | Iowa |
| 29 | Donald E Pruitt | 0 | Son | — | Iowa |
| 30 | Albert King | 40 | Head | Farm Laborer | Missouri |
| 31 | Sarah E King | 35 | Wife | — | Illinois |
| 32 | Glen A King | 9 | Son | — | Missouri |
| 33 | John R King | 7 | Son | — | Missouri |
| 34 | Mary J King | 3 | Daughter | — | Missouri |
| 35 | Ernest P Johnson | 49 | Head | Farmer | Iowa |
| 36 | Elizabeth H Johnson | 43 | Wife | — | Sweden |
| 37 | Sidney E Johnson THIS PERSON | 17 | Son | — | Iowa |
| 38 | Walter T Johnson | 15 | Son | — | Iowa |
| 39 | Elizabeth A Johnson | 14 | Daughter | — | Iowa |
| 40 | Edward H Johnson | 12 | Son | — | Iowa |
| 41 | Ben A Johnson | 10 | Son | — | Iowa |
| 42 | Ruth P Johnson | 8 | Daughter | — | Iowa |
| 43 | Glen E Mayer | 31 | Head | Farmer | Iowa |
| 44 | Grace B Mayer | 24 | Wife | — | Iowa |
| 45 | Gwendolyn E Mayer | 6 | Daughter | — | Iowa |
| 46 | Wilda D Mayer | 3 | Daughter | — | Iowa |
| 47 | Otto Olikstrom | 46 | Head | Farmer | Sweden |
| 48 | Clara M Olikstrom | 40 | Wife | — | Iowa |
| 49 | Mabel E Olikstrom | 14 | Daughter | — | Iowa |
| 50 | Bernadine A Olikstrom | 12 | Daughter | — | Iowa |
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)