WC
William Callahan — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Wayne-County, Michigan
Our Model Tree links this William Callahan across the 1930 and 1940 US Censuses in Wayne-County, Michigan (XGBoost, ~Confirmed) — first a son (b.~1928), then head of a 8-person household.
Age 12
b. ~1928
Male
Son
Born: Michigan
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Wayne-County, Michigan |
| Surname | Callahan |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Additional Details | |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
| Township / Ward | Detroit City |
| Est. Birth Year | ~1928 |
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 1940 census.
| Name | Relation to head | Relative to William | Age | Birth yr |
|---|---|---|---|---|
| John Callahan | Son | — | 17 | ~1923 |
| John Callahan | Head | — | 42 | ~1898 |
| Joan Callahan | Daughter | — | 4 | ~1936 |
| Helen Callahan | Spouse | — | 43 | ~1897 |
| Mary Callahan | Daughter | — | 6 | ~1934 |
| Murray Callahan | Son | — | 18 | ~1922 |
| Robert Callahan | Son | — | 12 | ~1928 |
| William Callahan | Son | — | 12 | ~1928 |
Census Appearances
1930
Wayne, Michigan
Son, age 2
Wayne, Michigan · implied b. ~1928 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Callahan |
| Given Name | William L. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 2 |
| Marital Status | Single |
| Birthplace | Michigan |
| Father's Birthplace | New York |
| Mother's Birthplace | Michigan |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
1940
Wayne-County, Michigan
Son, age 12
Wayne-County, Michigan · implied b. ~1928 — 8 household members
| Surname | Callahan |
| Given Name | William |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 12 |
| Marital Status | Single |
| Birthplace | Michigan |
| 1935 Residence (City) | Detroit City |
| 1935 Residence (County) | Wayne |
| Highest Grade | 6 |
| 1935 Residence | Same place |
| Birth State | Michigan |
| Birth Country | United States |
| Birthplace (normalized) | michigan |
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 William Callahan across 2 US Census years (1930 and 1940) in 2 locations, using XGBoost record linkage.
Show:
This person
Anchor record
William Callahan
Son · 1940 · age 12 · b. ~1928 · Michigan
★ You are viewing this record
Sibling
John Callahan
Sibling · 1940 · age 17
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Robert Callahan
Sibling · 1940 · age 12
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Murray Callahan
Sibling · 1940 · age 18
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Mary Callahan
Sibling · 1940 · age 6
Source co-child of head (derived)
● Co-child · derived · ~0.88
Sibling
Joan Callahan
Sibling · 1940 · age 4
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
1940 US Federal Census — Wayne-County, Michigan
Open full size
1940 US Federal Census — Wayne-County, Michigan
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01855-00621)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Louis Schuman | 36 | Head | Line Driver | Illinois |
| 2 | Genevieve Schuman | 33 | Wife | — | Pennsylvania |
| 3 | Robert Schuman | 3 | Son | — | Michigan |
| 4 | Ernest Perry | 22 | Head | Janitor | Michigan |
| 5 | Alice Perry | 23 | Wife | — | Michigan |
| 6 | Charles Perry | 2 | Son | — | Michigan |
| 7 | Alice Ann Perry | 0 | Daughter | — | Michigan |
| 8 | Aldrich Kuranen | 35 | Head | Truck Driver | Michigan |
| 9 | Hilma Kuranen | 37 | Wife | — | Michigan |
| 10 | Barbara Kuranen | 10 | Daughter | — | Michigan |
| 11 | Charles Wilson | 33 | Head | Machinist | England |
| 12 | Annie Wilson | 28 | Wife | — | England |
| 13 | Geoffrey Wilson | 1 | Son | — | Michigan |
| 14 | William Swales | 68 | Head | Route Man | England |
| 15 | Ida Ardella Swales | 65 | Wife | — | England |
| 16 | Richard Brown | 29 | Head | Service Man In Calculators | Ohio |
| 17 | Franklin Brown | 28 | Wife | — | Ohio |
| 18 | Constance Brown | 10 | Daughter | — | Ohio |
| 19 | Joy Anne Brown | 5 | Daughter | — | Ohio |
| 20 | Emery Galimin | 30 | Head | Truck Driver | Ohio |
| 21 | Irene Galimin | 25 | Wife | — | Pennsylvania |
| 22 | Loretta Galimin | 7 | Daughter | — | Michigan |
| 23 | Emery Jr. Galimin | 6 | Son | — | Michigan |
| 24 | Catherine Galimin | 2 | Daughter | — | Michigan |
| 25 | — | None | — | — | — |
| 26 | Ray Rymiller | 46 | Head | Job Setter | Illinois |
| 27 | Agona Rymiller | 40 | Wife | — | Ohio |
| 28 | Ray Jr. Rymiller | 15 | Son | — | Michigan |
| 29 | Dale Rymiller | 11 | Son | — | Michigan |
| 30 | Darlene Rymiller | 5 | Daughter | — | Michigan |
| 31 | John Callahan | 42 | Head | Maintenance Foreman | Michigan |
| 32 | Helen Callahan | 43 | Wife | — | Wisconsin |
| 33 | Murray Callahan | 18 | Son | — | Michigan |
| 34 | John Callahan | 17 | Son | New Worker | Michigan |
| 35 | William Callahan THIS PERSON | 12 | Son | — | Michigan |
| 36 | Robert Callahan | 12 | Son | — | Michigan |
| 37 | Mary Callahan | 6 | Daughter | — | Michigan |
| 38 | Joan Callahan | 4 | Daughter | — | Michigan |
| 39 | Glenn Orth | 32 | Head | Assembly | Iowa |
| 40 | Anna Orth | 32 | Wife | — | Michigan |
About This Record & Model Tree
This record was independently indexed by YourRoots from the 1940 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)