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Elmer Johnson — 1920 US Census Record
Model Tree available1920 United States Federal Census · Mahaska, Iowa
Our Model Tree links this Elmer Johnson across the 1900, 1910 and 1920 US Censuses in Mahaska, Iowa (XGBoost, ~Confirmed), with identified parents Frank & Charlotte — first a son (b.~1896), then head of a 2-person household.
Age 24
b. ~1896
Male
Son
Born: Iowa
Single
1920 Census Record Details
| Census Year | 1920 |
| Location | Mahaska, Iowa |
| Surname | Johnson |
| Given Name | Elmer H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Additional Details | |
| Occupation | Laborer |
| Industry | At home |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
| Occupation | Laborer |
| Township / Ward | Spring Creek Township |
| Est. Birth Year | ~1896 |
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.
2 people recorded at the same address in the 1920 census.
| Name | Relation to head | Relative to Elmer | Age | Birth yr |
|---|---|---|---|---|
| Charlotte Johnson | Head | — | 61 | ~1859 |
| Elmer Johnson | Son | — | 24 | ~1896 |
Census Appearances
1900
Mahaska, Iowa
Son, age 5
Mahaska, Iowa · implied b. ~1895 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Elmer |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 4 |
| Marital Status | Single |
| Birthplace | Iowa |
| Birth Month | Oct |
| Birth Year | 1895 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1910
Mahaska, Iowa
Son, age 14
Mahaska, Iowa · implied b. ~1896 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Elmer |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 14 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | none |
| Birth State | Iowa |
| Birth Country | United States |
| Birthplace (normalized) | iowa |
1920
Mahaska, Iowa
Son, age 24
Mahaska, Iowa · implied b. ~1896 — 2 household members
| Surname | Johnson |
| Given Name | Elmer H. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Single |
| Birthplace | Iowa |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Laborer |
| Industry | At home |
| 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 Elmer Johnson across 3 US Census years (1900, 1910 and 1920) in Mahaska, Iowa, using XGBoost record linkage. Identified parents: father Frank Johnson (~0.92 confidence) and mother Charlotte Johnson (~0.92 confidence) and mother Charlotte Johnson (~0.92 confidence) and father Charles Johnson (~0.92 confidence). The pedigree spans 1 generation with 4 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Frank Johnson
b. ~1851
Source father
● Household
· direct · ~0.92
Mother
Charlotte Johnson
b. ~1853
Source mother
● Household
· direct · ~0.92
Mother
Charlotte Johnson
b. ~1859
Source mother
● Household
· direct · ~0.92
Father
Charles Johnson
b. ~1860
Source father
● Household
· direct · ~0.92
This person
Anchor record
Elmer Johnson
Son · 1920 · age 24 · b. ~1896 · Iowa
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1920 US Federal Census — Mahaska, Iowa
Open full size
1920 US Federal Census — Mahaska, Iowa
Page Contents
50 people indexed on this census page (ia:1920:14thcensusofpopu501unit:0494)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 51 | John W. Andrews | 68 | Head | Farmer | Iowa |
| 52 | Guantha Andrews | 57 | Wife | — | Iowa |
| 53 | Line Vander Linden | 25 | Head | Farmer | Holland |
| 54 | Katrina Vander Linden | 24 | Wife | — | Holland |
| 55 | Hazel K. Vander Linden | 1 | Daughter | — | Iowa |
| 56 | Joseph Jubeck | 38 | Head | Laborer | Illinois |
| 57 | Hazel Jubeck | 37 | Wife | — | Iowa |
| 58 | Carlton G. Jubeck | 8 | Son | — | Iowa |
| 59 | Howard K. Reiner | 51 | Head | Farmer | Pennsylvania |
| 60 | Mary E. Reiner | 52 | Wife | — | Ohio |
| 61 | John W. Smith | 50 | Head | Farmer | Iowa |
| 62 | Alice J. Smith | 44 | Wife | — | Iowa |
| 63 | Paul E. Smith | 17 | Son | — | Iowa |
| 64 | Alva R. Smith | 16 | Son | — | Iowa |
| 65 | Earnest P. Smith | 11 | Son | — | Iowa |
| 66 | Hazel L. Smith | 9 | Daughter | — | Iowa |
| 67 | Emery L. Newcomb | 27 | Head | Farmer | Illinois |
| 68 | Rosa N. Newcomb | 21 | Wife | — | Iowa |
| 69 | Harry L. Newcomb | 3 | Son | — | Iowa |
| 70 | Kathrine L. Newcomb | 0 | Daughter | — | Iowa |
| 71 | John L. Padgett | 33 | Head | Farmer | Iowa |
| 72 | Margaret E. Padgett | 29 | Wife | — | Iowa |
| 73 | Nellie M. Padgett | 10 | Daughter | — | Iowa |
| 74 | Mary D. Padgett | 7 | Daughter | — | Iowa |
| 75 | Charlie S. Backoshe | 56 | Head | Farmer | Slovakia |
| 76 | Anna Backoshe | 66 | Wife | — | Slovakia |
| 77 | John Milkanian | 63 | Head | Farmer | Austria |
| 78 | Anna Milkanian | 53 | Wife | — | Austria |
| 79 | John G. Milkanian | 21 | Son | Laborer | Pennsylvania |
| 80 | Mary M. Milkanian | 20 | Daughter | — | Illinois |
| 81 | Mae Milkanian | 18 | Daughter | Teacher | Iowa |
| 82 | Margaret Milkanian | 16 | Daughter | — | Iowa |
| 83 | John Shaw | 46 | Head | Farmer | Iowa |
| 84 | Eva Shaw | 45 | Wife | — | Iowa |
| 85 | Emery J. Shaw | 14 | Son | Laborer | Iowa |
| 86 | Virgil Shaw | 12 | Son | Laborer | Iowa |
| 87 | Lillian Shaw | 10 | Daughter | — | Iowa |
| 88 | Della M. Shaw | 8 | Daughter | — | Iowa |
| 89 | Lois M. Shaw | 7 | Daughter | — | Iowa |
| 90 | Howard Shaw | 5 | Son | — | Iowa |
| 91 | Willard Shaw | 3 | Son | — | Iowa |
| 92 | John Beatty | 70 | Head | Laborer | Indiana |
| 93 | James W. Padgett | 63 | Head | — | Kentucky |
| 94 | Rosa Padgett | 56 | Wife | — | Iowa |
| 95 | Tom B. Jeffries | 51 | Head | Farmer | Iowa |
| 96 | Lucy V. Jeffries | 51 | Wife | — | Iowa |
| 97 | Gail E. Jeffries | 15 | Daughter | — | Iowa |
| 98 | Freda Jeffries | 14 | Daughter | — | Iowa |
| 99 | Charlotte Johnson | 61 | Head | — | Sweden |
| 100 | Elmer H. Johnson THIS PERSON | 24 | Son | Laborer | Iowa |
Pedigree Summary
Elmer
Gen 1 · 4 parents
~0.92
Max depth 4 (1900–1950 window)
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)