TC
Thomas Callahan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Mesa-County, Colorado
Our Model Tree links this Thomas Callahan across the 1920, 1930 and 1940 US Censuses in Mesa-County, Colorado (XGBoost, ~Confirmed), with identified parents Thomas & Josephine — first a head (b.~1906), then head of a 4-person household.
Age 34
b. ~1906
Male
Head
Born: Colorado
Married
1940 Census Record Details
| Census Year | 1940 |
| Location | Mesa-County, Colorado |
| Surname | Callahan |
| Given Name | Thomas F. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Orchard Mesa Heights |
| 1935 Residence (County) | Mesa |
| Additional Details | |
| Occupation | Salesman |
| Industry | Monument company |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2500 |
| Highest Grade | C 2 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
| Occupation | Salesman |
| Township / Ward | Orchard Mesa Heights |
| Est. Birth Year | ~1906 |
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.
4 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to Thomas | Age | Birth yr |
|---|---|---|---|---|
| Gladys Callahan | Spouse | — | 24 | ~1916 |
| Thomas Callahan | Head | — | 34 | ~1906 |
| Louis Bechtold | Other | — | 21 | ~1919 |
| Richard Callahan | Son | — | 7 | ~1933 |
Census Appearances
1920
Mesa, Colorado
Son, age 13
Mesa, Colorado · implied b. ~1907 — 8 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Callahan |
| Given Name | Thomas Jr |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 13 |
| Marital Status | Single |
| Birthplace | Colorado |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Occupation | none |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1930
Mesa, Colorado
Son, age 24
Mesa, Colorado · implied b. ~1906 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Callahan |
| Given Name | Thomas J. Jr. |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 24 |
| Marital Status | Married |
| Birthplace | Colorado |
| Age at First Marriage | 23 |
| Father's Birthplace | Pennsylvania |
| Mother's Birthplace | Pennsylvania |
| Can Read/Write | Yes |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
1940
Mesa-County, Colorado
Head, age 34
Mesa-County, Colorado · implied b. ~1906 — 4 household members
| Surname | Callahan |
| Given Name | Thomas F. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 34 |
| Marital Status | Married |
| Birthplace | Colorado |
| 1935 Residence (City) | Orchard Mesa Heights |
| 1935 Residence (County) | Mesa |
| Occupation | Salesman |
| Industry | Monument company |
| Class of Worker | PW |
| Hours Worked | 40 |
| Income (1939) | 2500 |
| Highest Grade | C 2 |
| 1935 Residence | Same place |
| Birth State | Colorado |
| Birth Country | United States |
| Birthplace (normalized) | colorado |
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 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Thomas Callahan (~0.92 confidence) and mother Josephine Callahan (~0.92 confidence). The pedigree spans 1 generation with 2 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Thomas Callahan
b. ~1873
Source father
● Household
· direct · ~0.92
Mother
Josephine Callahan
b. ~1873
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Thomas Callahan
Head · 1940 · age 34 · b. ~1906 · Colorado
★ You are viewing this record
Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Mesa-County, Colorado
Open full size
1940 US Federal Census — Mesa-County, Colorado
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-00470-00742)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Mary A. Robbins | 74 | Mother-in-law | — | Ohio |
| 2 | Thomas F. Callahan THIS PERSON | 34 | Head | Salesman | Colorado |
| 3 | Gladys F. Callahan | 24 | Wife | — | Colorado |
| 4 | Richard T. Callahan | 7 | Son | — | California |
| 5 | Louis O. Bechtold | 21 | Lodger | Laborer | Colorado |
| 6 | Elliot L. Moore | 61 | Head | Laborer | Missouri |
| 7 | May E. Moore | 62 | Wife | — | Missouri |
| 8 | Annie M. Campbell | 75 | Mother-in-law | — | England |
| 9 | Edwin C. Pattrick | 40 | Head | — | Colorado |
| 10 | Viola E. Pattrick | 39 | Wife | Manager | Colorado |
| 11 | Charles H. Pattrick | 21 | Son | — | Colorado |
| 12 | Oliver S. Pattrick | 4 | Son | Salesman | Colorado |
| 13 | Fred C. Clymer | 57 | Head | Manager | Ohio |
| 14 | Mabelle G. Clymer | 47 | Wife | Book Keeper | Kansas |
| 15 | Dudley M. Clymer | 19 | Son | Truck Driver | Colorado |
| 16 | Freda G. Clymer | 16 | Daughter | — | Colorado |
| 17 | Charlotte J. Clymer | 12 | Daughter | — | Colorado |
| 18 | Beryl B. Clymer | 10 | Daughter | — | Colorado |
| 19 | Joan D. Clymer | 7 | Daughter | — | Colorado |
| 20 | Sterling O. Clymer | 5 | Son | — | Colorado |
| 21 | Madonna Clymer | 4 | Daughter | — | Colorado |
| 22 | Fred G. Clymer | 14 | Son | — | Colorado |
| 23 | Joseph S. Murphy | 69 | Head | Salesman | Missouri |
| 24 | Tell O. Murphy | 25 | Son | Laborer | Missouri |
| 25 | Rose M. Murphy | 23 | Daughter-in-law | — | Colorado |
| 26 | Larry O. Murphy | 1 | Grandson | — | Colorado |
| 27 | Lloyd E. Cochran | 52 | Head | Sign Painter | Nebraska |
| 28 | Muriel V. Cochran | 53 | Wife | — | Nebraska |
| 29 | Pat H. Cochran | 16 | Son | — | Colorado |
| 30 | Delford Taylor | 51 | Head | Manager | Colorado |
| 31 | Almida M. Taylor | 41 | Wife | Saleswoman | New Mexico |
| 32 | David D. Taylor | 22 | Son | Salesman | Colorado |
| 33 | Monte E. Taylor | 20 | Son | Salesman | Colorado |
| 34 | Evelin O. Hoover | 18 | Housekeeper | Housekeeper | Colorado |
| 35 | William M. Harku | 67 | Head | Attendant | Indiana |
| 36 | Minnie B. Harku | 57 | Wife | Saleswoman | Mississippi |
| 37 | Mary A. Harku | 24 | Daughter | Saleswoman | Kansas |
| 38 | Dorothy A. Harku | 10 | Daughter | — | Colorado |
| 39 | Florence E. Moberly | 41 | Head | Housekeeper | Colorado |
| 40 | John E. Burgman | 86 | Head | — | Iowa |
Pedigree Summary
Thomas
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 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)