EJ
Elmer Johnson — 1930 US Census Record
Model Tree available1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Elmer Johnson across the 1910, 1920 and 1930 US Censuses in Cook, Illinois (XGBoost, ~Confirmed), with identified parents Olof & Anna — first a head (b.~1892), then head of a 5-person household.
Age 38
b. ~1892
Male
Head
Born: Illinois
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Johnson |
| Given Name | Elmer |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 33 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Additional Details | |
| Occupation | Bookkeeper |
| Industry | Oil |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 45 |
| Radio Set | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Occupation | Bookkeeper |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1892 |
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 Elmer | Age | Birth yr |
|---|---|---|---|---|
| Shirley Johnson | Daughter | — | 2 | ~1928 |
| Elmer Johnson | Head | — | 38 | ~1892 |
| Roland Johnson | Other | — | 17 | ~1913 |
| Leighton Johnson | Son | — | 3 | ~1927 |
| Edna Johnson | Spouse | — | 26 | ~1904 |
Census Appearances
1910
Cook, Illinois
Son, age 17
Cook, Illinois · implied b. ~1893 — 6 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Elmer |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 17 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Swed-Swedish |
| Mother's Birthplace | Swed-Swedish |
| Occupation | Chauffeur |
| Industry | Private Family |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1920
Cook, Illinois
Head, age 28
Cook, Illinois · implied b. ~1892 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Elmer |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 28 |
| Marital Status | Married |
| Birthplace | Illinois |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Chauffeur |
| Industry | Private Family |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Mother Tongue | Swedish |
| Home Owned/Rented | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Head, age 38
Cook, Illinois · implied b. ~1892 — 5 household members
| Surname | Johnson |
| Given Name | Elmer |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 38 |
| Marital Status | Married |
| Birthplace | Illinois |
| Age at First Marriage | 33 |
| Father's Birthplace | Sweden |
| Mother's Birthplace | Sweden |
| Occupation | Bookkeeper |
| Industry | Oil |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 45 |
| Radio Set | R |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
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 (1910, 1920 and 1930) in Cook, Illinois, using XGBoost record linkage. Identified parents: father Olof Johnson (~0.92 confidence) and mother Anna Johnson (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Olof Johnson
b. ~1866
Source father
● Household
· direct · ~0.92
Mother
Anna Johnson
b. ~1868
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Elmer Johnson
Head · 1930 · age 38 · b. ~1892 · Illinois
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Cook, Illinois
Open full size
1930 US Federal Census — Cook, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel474:0558)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | August Bartell | 39 | Head | Painter | Illinois |
| 2 | Minnie Bartell | 74 | Mother | — | Germany |
| 3 | Emil Lagow | 53 | Head | — | Germany |
| 4 | Anna Lagow | 47 | Wife | Typist | Illinois |
| 5 | Margaret Lagow | 19 | Daughter | — | Illinois |
| 6 | John Oulmster | 41 | Head | Upholsterer | Poland |
| 7 | Jessie Oulmster | 24 | Wife | — | Illinois |
| 8 | John Konwinski | 50 | Head | Carpenter | Germany |
| 9 | Francis Konwinski | 45 | Wife | — | German Poland |
| 10 | Walter Konwinski | 22 | Son | Draughtsman | Illinois |
| 11 | Jean Konwinski | 21 | Daughter-in-law | Ticket Maker | Illinois |
| 12 | Birdie Dodsworth | 55 | Head | — | Pennsylvania |
| 13 | Elmer Johnson THIS PERSON | 38 | Head | Bookkeeper | Illinois |
| 14 | Edna Johnson | 26 | Wife | — | Pennsylvania |
| 15 | Leighton Johnson | 3 | Son | — | Illinois |
| 16 | Shirley Johnson | 2 | Daughter | — | Illinois |
| 17 | Roland Johnson | 17 | Brother | — | Illinois |
| 18 | Ernest Cameron | 43 | Head | Engineer | Illinois |
| 19 | Bertha Cameron | 41 | Wife | — | Illinois |
| 20 | Lillian Cameron | 27 | Daughter | Inspector | Illinois |
| 21 | Bernice Cameron | 20 | Daughter | Operator | Illinois |
| 22 | Rose Ruth Cameron | 18 | Daughter | Operator | Illinois |
| 23 | Myrtle Cameron | 15 | Daughter | — | Illinois |
| 24 | Grace Cameron | 12 | Daughter | — | Illinois |
| 25 | Ernest Jr. Cameron | 10 | Son | — | Illinois |
| 26 | Pearl Cameron | 6 | Daughter | — | Illinois |
| 27 | Earl Cameron | 4 | Son | — | Illinois |
| 28 | Bobby Cameron | 1 | Son | — | Illinois |
| 29 | John Larsen | 26 | Head | Machinist | Illinois |
| 30 | Elizabeth Underwood | 72 | Mother-in-law | — | England |
| 31 | Paul Matzke | 37 | Head | Machinist | Germany |
| 32 | Elsie Matzke | 31 | Wife | — | Germany |
| 33 | Eleanor Matzke | 4 | Daughter | — | Illinois |
| 34 | Ernest Reinhardt | 23 | Brother-in-law | Machinist | Germany |
| 35 | Victor Guhl | 19 | Lodger | Machinist | Germany |
| 36 | William J. Gross | 41 | Head | Pressman | Ohio |
| 37 | Theresa Gross | 39 | Wife | — | Illinois |
| 38 | Henrietta Gross | 16 | Daughter | — | Illinois |
| 39 | Bernice Gross | 12 | Daughter | — | Illinois |
| 40 | Joseph Fisher | 39 | Lodger | Die Setter | New York |
| 41 | Harold Fisher | 8 | Lodger | — | New York |
| 42 | Walter Hulst | 46 | Head | Teamster | Illinois |
| 43 | Marie Hulst | 43 | Wife | — | Germany |
| 44 | Howard Hulst | 21 | Son | Ad Taker | Illinois |
| 45 | Walter Jr. Hulst | 19 | Son | Clerk | Illinois |
| 46 | Ruth Hulst | 8 | Daughter | — | Illinois |
| 47 | Herman Binns | 72 | Head | — | Germany |
| 48 | Catherine Binns | 67 | Wife | — | Germany |
| 49 | Ernest Binns | 32 | Son | Chauffeur | Illinois |
| 50 | Ernest Jr. Binns | 10 | Grandchild | — | Illinois |
Pedigree Summary
Elmer
Gen 1 · 2 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)