TC
Thomas Callahan — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Cook, Illinois
Our Model Tree links this Thomas Callahan across the 1920 and 1930 US Censuses in Cook, Illinois (XGBoost, ~Confirmed) — first a son (b.~1919), then head of a 8-person household.
Age 11
b. ~1919
Male
Son
Born: Illinois
Single
1930 Census Record Details
| Census Year | 1930 |
| Location | Cook, Illinois |
| Surname | Callahan |
| Given Name | Thomas A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Additional Details | |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
| Township / Ward | Chicago City |
| Est. Birth Year | ~1919 |
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 Thomas | Age | Birth yr |
|---|---|---|---|---|
| John Callahan | Son | — | 3 | ~1927 |
| Mae Callahan | Spouse | — | 40 | ~1890 |
| Alice Callahan | Daughter | — | 8 | ~1922 |
| Martin Callahan | Son | — | 5 | ~1925 |
| Mary Callahan | Daughter | — | 6 | ~1924 |
| Francis Callahan | Head | — | 39 | ~1891 |
| Josephine Callahan | Daughter | — | 2 | ~1928 |
| Thomas Callahan | Son | — | 11 | ~1919 |
Census Appearances
1920
Cook, Illinois
Son, age
Cook, Illinois · implied b. ~1920 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Callahan |
| Given Name | Thomas |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| Birth State | Illinois |
| Birth Country | United States |
| Birthplace (normalized) | illinois |
1930
Cook, Illinois
Son, age 11
Cook, Illinois · implied b. ~1919 — 8 household members
| Surname | Callahan |
| Given Name | Thomas A. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 11 |
| Marital Status | Single |
| Birthplace | Illinois |
| Father's Birthplace | Illinois |
| Mother's Birthplace | Illinois |
| 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 Thomas Callahan across 2 US Census years (1920 and 1930) in Cook, Illinois, using XGBoost record linkage.
Show:
This person
Anchor record
Thomas Callahan
Son · 1930 · age 11 · b. ~1919 · Illinois
★ You are viewing this record
Sibling
John Callahan
Sibling · 1930 · age 3
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Josephine Callahan
Sibling · 1930 · age 2
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Callahan
Sibling · 1930 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Alice Callahan
Sibling · 1930 · age 8
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Martin Callahan
Sibling · 1930 · age 5
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:illinoiscensus00reel425:0207)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Fred Burkhattmeyer | 64 | Head | President | Illinois |
| 2 | Sophie Burkhattmeyer | 60 | Wife | — | Illinois |
| 3 | Fred Burkhattmeyer | 30 | Son | Assistant | Illinois |
| 4 | Evelyn M. Arnold | 57 | Head | — | Illinois |
| 5 | Ernest H. Allen | 50 | Head | Manager | Nebraska |
| 6 | Alice F. Allen | 43 | Wife | — | Illinois |
| 7 | Hilda C. Allen | 44 | Sister | Assistant | Sweden |
| 8 | Ball Allen | 30 | Boarder | Butler | Texas |
| 9 | Adele Allen | 30 | Boarder | Cook | Georgia |
| 10 | Willard C. Wise | 46 | Head | President | Indiana |
| 11 | Margaret C. Wise | 31 | Wife | — | Illinois |
| 12 | Catherine Russey | 25 | Servant | Servant | England |
| 13 | Charles A. Waterhouse | 38 | Head | Vice President | Ohio |
| 14 | Margaret T. Waterhouse | 37 | Wife | — | Missouri |
| 15 | John Waterhouse | 8 | Son | — | Illinois |
| 16 | Marion Waterhouse | 7 | Daughter | — | Illinois |
| 17 | Harriet Waterhouse | 3 | Daughter | — | Illinois |
| 18 | Emma H. Crouse | 69 | Mother | — | Pennsylvania |
| 19 | Francis A. Callahan | 39 | Head | Sales Assistant | Illinois |
| 20 | Mae C. Callahan | 40 | Wife | — | Illinois |
| 21 | Thomas A. Callahan THIS PERSON | 11 | Son | — | Illinois |
| 22 | Alice C. Callahan | 8 | Daughter | — | Illinois |
| 23 | Mary F. Callahan | 6 | Daughter | — | Illinois |
| 24 | Martin Callahan | 5 | Son | — | Illinois |
| 25 | John Callahan | 3 | Son | — | Illinois |
| 26 | Josephine Callahan | 2 | Daughter | — | Illinois |
| 27 | John M. Borravan | 60 | Head | — | Canada |
| 28 | Nina Borravan | 60 | Wife | — | Ohio |
| 29 | Fred F. Borravan | 22 | Son | — | Illinois |
| 30 | Michael J. Hughes | 59 | Head | President | England |
| 31 | Catherine E. Hughes | 50 | Wife | — | Indiana |
| 32 | Catherine E. Hughes | 25 | Daughter | Teacher | Indiana |
| 33 | Cyril R. Hughes | 21 | Son | — | Indiana |
| 34 | Mary C. Hughes | 16 | Daughter | — | Indiana |
| 35 | John R. Hughes | 14 | Son | — | Indiana |
| 36 | Joseph A. Hughes | 12 | Son | — | Indiana |
| 37 | Marjorie A. Hughes | 10 | Daughter | — | Indiana |
| 38 | Charles Grom | 58 | Head | — | Illinois |
| 39 | Alice Grom | 58 | Wife | — | Illinois |
| 40 | Bryan Conwell | 63 | Head | Traffic Officer | New York |
| 41 | Mary Conwell | 57 | Wife | — | England |
| 42 | Mary C. Conwell | 28 | Daughter | Stenographer | Illinois |
| 43 | Francis J. Conwell | 26 | Son | Salesman | Illinois |
| 44 | Harold E. Conwell | 25 | Son | Salesman | Illinois |
| 45 | Agnes E. Conwell | 22 | Daughter | Stenographer | Illinois |
| 46 | Margaret M. Conwell | 17 | Daughter | — | Illinois |
| 47 | Chester Harnsbark | 68 | Head | President | Virginia |
| 48 | Alice H. Harnsbark | 61 | Wife | — | Georgia |
| 49 | Harry C. Cunningham | 61 | Head | Manager | Illinois |
| 50 | Nellie E. Cunningham | 56 | Wife | — | Illinois |
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)