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James Mcmahon — 1940 US Census Record
Linked across censuses1940 United States Federal Census · Mccracken-County, Kentucky
Our Model Tree links this James Mcmahon across the 1920, 1930 and 1940 US Censuses in Mccracken-County, Kentucky (XGBoost, ~Confirmed) — first a head (b.~1873), then head of a 3-person household.
Age 67
b. ~1873
Male
Head
Born: Indiana
Widowed
1940 Census Record Details
| Census Year | 1940 |
| Location | Mccracken-County, Kentucky |
| Surname | McMahon |
| Given Name | James L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 67 |
| Marital Status | Widowed |
| Birthplace | Indiana |
| 1935 Residence (City) | Paducah City |
| 1935 Residence (County) | McCracken |
| Additional Details | |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
| Township / Ward | Paducah City |
| Est. Birth Year | ~1873 |
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.
3 people recorded at the same address in the 1940 census.
| Name | Relation to head | Relative to James | Age | Birth yr |
|---|---|---|---|---|
| Eloise Mcmahon | Daughter | — | 33 | ~1907 |
| James Mcmahon | Head | — | 67 | ~1873 |
| Hattie Meyers | Other | — | 69 | ~1871 |
Census Appearances
1920
Mccracken, Kentucky
Son, age 46
Mccracken, Kentucky · implied b. ~1874 — 5 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McMahon |
| Given Name | James L |
| Relationship to Head | Son |
| Sex | M |
| Color / Race | White |
| Age | 46 |
| Marital Status | Widowed |
| Birthplace | Indiana |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Kentucky |
| Occupation | Freight Inspector |
| Industry | I C R R |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1930
Mccracken, Kentucky
Head, age 57
Mccracken, Kentucky · implied b. ~1873 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McMahon |
| Given Name | James L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 57 |
| Marital Status | Widowed |
| Birthplace | Indiana |
| Age at First Marriage | 22 |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Kentucky |
| Occupation | Supervisor |
| Industry | I. C. R. R. Co. |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | R |
| Home Value / Rent | 25 |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
1940
Mccracken-County, Kentucky
Head, age 67
Mccracken-County, Kentucky · implied b. ~1873 — 3 household members
| Surname | McMahon |
| Given Name | James L. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 67 |
| Marital Status | Widowed |
| Birthplace | Indiana |
| 1935 Residence (City) | Paducah City |
| 1935 Residence (County) | McCracken |
| Highest Grade | No 8 |
| 1935 Residence | Same place |
| Birth State | Indiana |
| Birth Country | United States |
| Birthplace (normalized) | indiana |
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 James Mcmahon across 3 US Census years (1920, 1930 and 1940) in 2 locations, using XGBoost record linkage.
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This person
Anchor record
James Mcmahon
Head · 1940 · age 67 · b. ~1873 · Kentucky
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1940 US Federal Census — Mccracken-County, Kentucky
Open full size
1940 US Federal Census — Mccracken-County, Kentucky
Page Contents
40 people indexed on this census page (nara:1940:m-t0627-01335-00048)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 41 | Curtis | 58 | Wife | — | Kentucky |
| 42 | John W. Wheeler | 75 | Head | Manager | Kentucky |
| 43 | Ida B. Wheeler | 73 | Wife | — | Kentucky |
| 44 | James L. Mcmahon THIS PERSON | 67 | Head | — | Indiana |
| 45 | Eloise Mcmahon | 33 | Daughter | Office Assistant | Indiana |
| 46 | Hattie Meyers | 69 | Sister | — | Indiana |
| 47 | Beatrice Bryan | 34 | Head | Book Binder | Kentucky |
| 48 | Aileen B. Bryan | 15 | Daughter | — | Missouri |
| 49 | Bettye J. Bryan | 10 | Daughter | — | Missouri |
| 50 | Anna B. Mott | 59 | Mother | — | Illinois |
| 51 | Forrest Erasure | 36 | Head | Cook | Kentucky |
| 52 | Rachel O. Erasure | 24 | Wife | — | Kentucky |
| 53 | Shirley J. Erasure | 3 | Daughter | — | Kentucky |
| 54 | Forrest M. Vass | 50 | Head | Department Manager | Kentucky |
| 55 | Clara Vass | 46 | Wife | — | Kentucky |
| 56 | Shelby Patton | 34 | Head | Machinist | Mississippi |
| 57 | Louise Patton | 35 | Wife | — | Kentucky |
| 58 | Ben D. Hall | 33 | Head | Pharmacist | Missouri |
| 59 | Frances S. Hall | 28 | Wife | Supervisor | Missouri |
| 60 | Robert M. Jr. Sears | 23 | Head | Assistant Bookkeeper | Kentucky |
| 61 | M. Kathleen Sears | 20 | Wife | Bookkeeper | Kentucky |
| 62 | Ray W. Jones | 22 | Head | Laborer | Kentucky |
| 63 | Haline M. Jones | 24 | Wife | — | Kentucky |
| 64 | Beulah R. Ward | 67 | Head | — | Tennessee |
| 65 | E. Staross Winn | 28 | Head | Blacksmith Helper | Kentucky |
| 66 | Pauline O. Winn | 25 | Wife | Operator | Kentucky |
| 67 | Donald Winn | 4 | Son | — | Kentucky |
| 68 | Marvin J. Clark | 23 | Head | Cook | Kentucky |
| 69 | Sophia P. Clark | 22 | Wife | — | Kentucky |
| 70 | Gordon J. Clark | 3 | Son | — | Kentucky |
| 71 | Aphie M. Neel | 18 | Sister-in-law | Presser | Kentucky |
| 72 | Clifton L. O. Newton | 34 | Head | Mechanic | Missouri |
| 73 | James A. Donovan | 72 | Head | Carpenter | Illinois |
| 74 | Ida M. Donovan | 60 | Wife | — | Illinois |
| 75 | Tempie E. Donovan | 18 | Daughter | Kitchen Work | Kentucky |
| 76 | James A. Jr. Donovan | 21 | Son | Presser | Kentucky |
| 77 | Marjorie A. Donovan | 18 | Daughter-in-law | — | Kentucky |
| 78 | Laura F. Steger | 72 | Head | — | Kentucky |
| 79 | Russell G. Beckett | 47 | Head | Minister | West Virginia |
| 80 | Mary E. Beckett | 44 | Wife | Minister | Colorado |
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)