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Ira Johnson — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Ira Johnson across the 1930 and 1940 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a son (b.~1901), then head of a 15-person household.
Age 29
b. ~1901
Male
Son
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Johnson |
| Given Name | Ira W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Canada |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 18.50 |
| Veteran | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago |
| Est. Birth Year | ~1901 |
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.
15 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to Ira | Age | Birth yr |
|---|---|---|---|---|
| Vera Balvasky | Spouse | — | 41 | ~1889 |
| Lee Hengsbach | Son | — | 28 | ~1902 |
| Louis Keeps | Son | — | 30 | ~1900 |
| Francis Gernert | Son | — | 28 | ~1902 |
| R Hastie | Head | — | 44 | ~1886 |
| Stanley Shumway | Son | — | 25 | ~1905 |
| Mary Balvasky | Daughter | — | 22 | ~1908 |
| Sarah Cavaner | Daughter | — | 27 | ~1903 |
| Kenneth Emick | Other | — | 23 | ~1907 |
| Ira Johnson | Son | — | 29 | ~1901 |
| Robert Russmeyer | Son | — | 22 | ~1908 |
| Clarence Russel | Son | — | 26 | ~1904 |
| Mollie Hastie | Spouse | — | 46 | ~1884 |
| Ralph Burket | Other | — | 20 | ~1910 |
| Robert Hastie | Son | — | 21 | ~1909 |
Census Appearances
1930
Cook, Illinois
Son, age 29
Cook, Illinois · implied b. ~1901 — 15 household members
| Surname | Johnson |
| Given Name | Ira W. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 29 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Canada |
| Mother's Birthplace | Illinois |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 18.50 |
| Veteran | Yes |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1940
Cook-County, Illinois
Head, age 39
Cook-County, Illinois · implied b. ~1901 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Johnson |
| Given Name | Ingraham |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 39 |
| Marital Status | Married |
| Birthplace | Illinois |
| 1935 Residence (City) | Chicago |
| 1935 Residence (County) | Cook |
| Occupation | Sawyer |
| Industry | Private Practice |
| Class of Worker | OA |
| Hours Worked | 40 |
| Income (1939) | 924 |
| Highest Grade | Hs 5 |
| 1935 Residence | Same house |
| 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 Ira Johnson across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
Ira Johnson
Son · 1930 · age 29 · b. ~1901 · Illinois
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Sibling
Stanley Shumway
Sibling · 1930 · age 25
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Balvasky
Sibling · 1930 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Lee Hengsbach
Sibling · 1930 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Hastie
Sibling · 1930 · age 21
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Francis Gernert
Sibling · 1930 · age 28
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Clarence Russel
Sibling · 1930 · age 26
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Sarah Cavaner
Sibling · 1930 · age 27
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Russmeyer
Sibling · 1930 · age 22
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Louis Keeps
Sibling · 1930 · age 30
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 — Cook, Illinois
Open full size
1930 US Federal Census — Cook, Illinois
Page Contents
50 people indexed on this census page (ia:1930:illinoiscensus00reel457:0659)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | R. Clarence Hastie | 44 | Head | Operator Dormitory | Illinois |
| 2 | Mollie S. Hastie | 46 | Wife | — | Illinois |
| 3 | Robert S. Hastie | 21 | Son | Student | Illinois |
| 4 | Ira W. Johnson THIS PERSON | 29 | Son | — | Illinois |
| 5 | Lee Hengsbach | 28 | Son | Chef | Illinois |
| 6 | Ralph J. Burket | 20 | Student | — | Iowa |
| 7 | Kenneth J. Emick | 23 | Student | — | Virginia |
| 8 | Clarence E. Russel | 26 | Son | — | Ohio |
| 9 | Stanley H. Shumway | 25 | Son | — | Oregon |
| 10 | Vera Balvasky | 41 | Wife | Maid | Russia |
| 11 | Mary Balvasky | 22 | Daughter | Tel. Operator | Russia |
| 12 | Francis W. Gernert | 28 | Son | Clerk | Pennsylvania |
| 13 | Robert E. Russmeyer | 22 | Son | Mancero-Art | Minnesota |
| 14 | Sarah A. Cavaner | 27 | Daughter | Student | Iowa |
| 15 | Louis F. Keeps | 30 | Son | Clerk | Maryland |
| 16 | Menter W. Perkins | 45 | Head | Student | Ohio |
| 17 | Rudolph H. Mielke | 27 | Son | Student | Germany |
| 18 | William Liddle | 22 | Son | Student | New York |
| 19 | Willard Liddle | 22 | Son | Student | New York |
| 20 | John Johnen | 34 | Head | Janitor | Russia |
| 21 | Leocadia Johnen | 29 | Wife | — | Russia |
| 22 | Theresa J. Johnen | 6 | Daughter | — | South Dakota |
| 23 | Alma C. Johnen | 3 | Daughter | — | South Dakota |
| 24 | Felix A. Pawlowski | 29 | Head | Student | Pennsylvania |
| 25 | Mary A. Pawlowski | 26 | Wife | Secretary | Pennsylvania |
| 26 | David M. Jabison | 26 | Head | Student | Wisconsin |
| 27 | Louise B. Jabison | 23 | Wife | — | Indiana |
| 28 | Joseph J. Poe | 30 | Son | Student | France |
| 29 | Harold B. Colwell | 29 | Head | House Man | Illinois |
| 30 | Mabel G. Colwell | 22 | Wife | — | Montana |
| 31 | Gilbert H. Mayo | 32 | Head | Student | Indiana |
| 32 | Geneva L. Mayo | 31 | Wife | — | Indiana |
| 33 | Jo Ann Mayo | 3 | Daughter | — | Indiana |
| 34 | Paul S. Bergey | 18 | Son | Student | Pennsylvania |
| 35 | Cornelius J. Cahill | 28 | Head | Student | Illinois |
| 36 | Elizabeth D. Cahill | 25 | Wife | — | Wisconsin |
| 37 | Barbara J. Cahill | 4 | Daughter | — | Illinois |
| 38 | Jr. Cornelius J. Cahill | 0 | Son | — | Illinois |
| 39 | Howard L. James | 21 | Son | Student | Virginia |
| 40 | Francis L. Gunter | 25 | Son | Teacher | Indiana |
| 41 | John P. Ackerman | 51 | Head | Student | Germany |
| 42 | Clara P. Ackerman | 39 | Wife | — | Minnesota |
| 43 | Wm. R. Beaus | 29 | Son | Sign Painter | Massachusetts |
| 44 | Clarence A. Schaffer | 41 | Head | Clerical | Michigan |
| 45 | Ethel M. Schaffer | 41 | Wife | Stenographer | New York |
| 46 | Walter J. Cutler | 35 | Head | Student | Massachusetts |
| 47 | Robert G. Martin | 19 | Son | Student | South Dakota |
| 48 | Myron J. Hatch | 23 | Son | Student | Utah |
| 49 | Leslie K. Arnold | 36 | Head | Student | Rhode Island |
| 50 | Dorothy Arnold | 30 | Wife | Student | New Jersey |
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)