MC
Margaret Callahan — 1940 US Census Record
Model Tree available1940 United States Federal Census · Tulsa-County, Oklahoma
Our Model Tree links this Margaret Callahan across the 1920, 1930 and 1940 US Censuses in Tulsa-County, Oklahoma (XGBoost, ~Confirmed), with identified parents Carlton & Carlton — first a daughter (b.~1920), then head of a 4-person household.
Age 20
b. ~1920
Female
Daughter
Born: Oklahoma
Single
1940 Census Record Details
| Census Year | 1940 |
| Location | Tulsa-County, Oklahoma |
| Surname | Callahan |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| 1935 Residence (City) | Tulsa city |
| 1935 Residence (County) | Tulsa |
| Additional Details | |
| Highest Grade | C 2 |
| 1935 Residence | Same house |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
| Township / Ward | Tulsa City |
| Est. Birth Year | ~1920 |
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 Margaret | Age | Birth yr |
|---|---|---|---|---|
| Lillie Callahan | Spouse | — | 47 | ~1893 |
| Carlton Callahan | Head | — | 47 | ~1893 |
| Lillian Mccann | Other | — | 67 | ~1873 |
| Margaret Callahan | Daughter | — | 20 | ~1920 |
Census Appearances
1920
Tulsa, Oklahoma
Daughter, age
Tulsa, Oklahoma · implied b. ~1920 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Callahan |
| Given Name | Margaret C. |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 0 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Oklahoma |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
1930
Tulsa, Oklahoma
Daughter, age 10
Tulsa, Oklahoma · implied b. ~1920 — 4 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Callahan |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 10 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| Father's Birthplace | Missouri |
| Mother's Birthplace | Oklahoma |
| Can Read/Write | Yes |
| Veteran | No |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
1940
Tulsa-County, Oklahoma
Daughter, age 20
Tulsa-County, Oklahoma · implied b. ~1920 — 4 household members
| Surname | Callahan |
| Given Name | Margaret |
| Relationship to Head | Daughter |
| Sex | F |
| Color / Race | White |
| Age | 20 |
| Marital Status | Single |
| Birthplace | Oklahoma |
| 1935 Residence (City) | Tulsa city |
| 1935 Residence (County) | Tulsa |
| Highest Grade | C 2 |
| 1935 Residence | Same house |
| Birth State | Oklahoma |
| Birth Country | United States |
| Birthplace (normalized) | oklahoma |
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 Margaret Callahan across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage. Identified parents: father Carlton Callahan (~0.92 confidence) and father Carlton Callahan (~0.92 confidence) and father Milton Callahan (~0.92 confidence) and mother Eickler Callahan (~0.92 confidence) and mother Lillie Callahan (~0.92 confidence). The pedigree spans 1 generation with 5 identified ancestors.
Show:
Gen 1
Parents
confidence ≈ 0.92
Father
Carlton Callahan
b. ~1893
Source father
● Household
· direct · ~0.92
Father
Carlton Callahan
b. ~1892
Source father
● Household
· direct · ~0.92
Father
Milton Callahan
b. ~1893
Source father
● Household
· direct · ~0.92
Mother
Eickler Callahan
b. ~1895
Source mother
● Household
· direct · ~0.92
Mother
Lillie Callahan
b. ~1893
Source mother
● Household
· direct · ~0.92
This person
Anchor record
Margaret Callahan
Daughter · 1940 · age 20 · b. ~1920 · Oklahoma
★ 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 — Tulsa-County, Oklahoma
Open full size
1940 US Federal Census — Tulsa-County, Oklahoma
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-03348-01016)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Jay D. Whitney | 50 | Head | Private Practice | Kansas |
| 2 | Mary Whitney | 47 | Wife | — | Kentucky |
| 3 | Phyllis H. Whitney | 21 | Daughter | — | Oklahoma |
| 4 | Ida G. Barber | 40 | Servant | Servant | Arkansas |
| 5 | Harold E. Collinson | 38 | Head | Sales Mgr. | Illinois |
| 6 | Charlotte Collinson | 36 | Wife | — | Oklahoma |
| 7 | Dale Collinson | 1 | Son | — | Oklahoma |
| 8 | Randolph Mcclendon | 8 | Servant | — | Oklahoma |
| 9 | Catherine Roark | 40 | Head | Saleswoman | Missouri |
| 10 | Gene Roark | 18 | Son | — | Missouri |
| 11 | Mary Catherine Roark | 14 | Daughter | — | Missouri |
| 12 | Fred G. Scott | 51 | Lodger | Sales Broker | Missouri |
| 13 | Merle Scott | 45 | Lodger | Secretary | Missouri |
| 14 | Fred T. Scott | 23 | Lodger | Engineer | Missouri |
| 15 | William K. Whitmore | 40 | Head | Manager | Pennsylvania |
| 16 | Hazel Whitmore | 40 | Wife | — | So. Dakota |
| 17 | Ann Whitmore | 7 | Daughter | — | Illinois |
| 18 | William J. Whitmore | 5 | Son | — | Illinois |
| 19 | Nellie F. Stewart | 19 | Lodger | Machine Operator | Iowa |
| 20 | Donald C. Brown | 35 | Head | Engineer | Iowa |
| 21 | Evelyn J. Brown | 30 | Wife | — | Ohio |
| 22 | Robert J. Brown | 8 | Son | — | Oklahoma |
| 23 | Ronald W. Brown | 3 | Son | — | Oklahoma |
| 24 | Lillian N. Merker | 34 | Lodger | — | Oklahoma |
| 25 | Jennie D. Bounds | 60 | Servant | Housekeeper | Missouri |
| 26 | Carlton Callahan | 47 | Head | Auditor | Missouri |
| 27 | Lillie Mae Callahan | 47 | Wife | — | Oklahoma |
| 28 | Margaret Callahan THIS PERSON | 20 | Daughter | — | Oklahoma |
| 29 | Lillian Mccann | 67 | Mother-in-law | — | Texas |
| 30 | Courtney L. Meister | 44 | Head | Clerk | Ohio |
| 31 | Grace Meister | 37 | Wife | — | Texas |
| 32 | Merrick P. Mcclure | 42 | Head | Auditor | Kentucky |
| 33 | Edna A. Mcclure | 42 | Wife | — | Kentucky |
| 34 | Robert Mcclure | 9 | Son | — | Oklahoma |
| 35 | Barbara Mcclure | 7 | Daughter | — | Oklahoma |
| 36 | Floyd D. Lashley | 41 | Head | Clerk | Kansas |
| 37 | Hattie H. Lashley | 35 | Wife | — | Alabama |
| 38 | Louise Lashley | 9 | Daughter | — | Oklahoma |
| 39 | John Lashley | 6 | Son | — | Oklahoma |
| 40 | Christine Griffin | 20 | Servant | Servant | Oklahoma |
Pedigree Summary
Margaret
Gen 1 · 5 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)