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John Mcmahon — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Coffee, Tennessee
Our Model Tree links this John Mcmahon across the 1920, 1930 and 1940 US Censuses in Coffee, Tennessee (XGBoost, ~Confirmed) — first a head (b.~1876), then head of a 9-person household.
Age 54
b. ~1876
Male
Head
Born: Tennessee
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Coffee, Tennessee |
| Surname | McMahon |
| Given Name | John W |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Tennessee |
| Age at First Marriage | 24 |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Additional Details | |
| Occupation | Farmer |
| Industry | Gen Farming |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Veteran | No |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
| Occupation | Farmer |
| Township / Ward | 10Th Civil Dist |
| Est. Birth Year | ~1876 |
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.
9 people recorded at the same address in the 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| Mildred Mcmahon | Daughter | — | 7 | ~1923 |
| Pauline Mcmahon | Daughter | — | 5 | ~1925 |
| Viola Mcmahon | Daughter | — | 19 | ~1911 |
| Clara Mcmahon | Daughter | — | 16 | ~1914 |
| Johnny Mcmahon | Daughter | — | 13 | ~1917 |
| Maurine Mcmahon | Daughter | — | 10 | ~1920 |
| John Mcmahon | Head | — | 54 | ~1876 |
| Granville Mcmahon | Son | — | 1 | ~1929 |
| Zora Mcmahon | Spouse | — | 51 | ~1879 |
Census Appearances
1920
Coffee, Tennessee
Head, age 44
Coffee, Tennessee · implied b. ~1876 — 10 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McMahan |
| Given Name | John W |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 44 |
| Marital Status | Married |
| Birthplace | Tennessee |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Occupation | Farmer |
| Industry | General farm |
| Class of Worker | Emp |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | O |
| Home Free/Mortgaged | F |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
1930
Coffee, Tennessee
Head, age 54
Coffee, Tennessee · implied b. ~1876 — 9 household members
| Surname | McMahon |
| Given Name | John W |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 54 |
| Marital Status | Married |
| Birthplace | Tennessee |
| Age at First Marriage | 24 |
| Father's Birthplace | Tennessee |
| Mother's Birthplace | Tennessee |
| Occupation | Farmer |
| Industry | Gen Farming |
| Class of Worker | OA |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Veteran | No |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
1940
Coffee-County, Tennessee
Head, age 64
Coffee-County, Tennessee · implied b. ~1876 — 7 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | McMahan |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 64 |
| Marital Status | Married |
| Birthplace | Tennessee |
| 1935 Residence (City) | Civil District 10 |
| 1935 Residence (County) | Coffee |
| Occupation | Farmer |
| Industry | Farm |
| Class of Worker | OA |
| Hours Worked | 48 |
| Income (1939) | 0 |
| Highest Grade | No 8 |
| 1935 Residence | Same House |
| Birth State | Tennessee |
| Birth Country | United States |
| Birthplace (normalized) | tennessee |
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 John 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
John Mcmahon
Head · 1930 · age 54 · b. ~1876 · Tennessee
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Confirmed / household (~0.90+)
Probable / derived (~0.65–0.89)
Candidate (<0.65, unverified)
Original Census Page
1930 US Federal Census — Coffee, Tennessee
Open full size
1930 US Federal Census — Coffee, Tennessee
Page Contents
50 people indexed on this census page (ia:1930:15thcensus2238unit:0645)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | Clara Freeze | 37 | Head | Farmer | Tennessee |
| 2 | Mary Freeze | 76 | Mother | — | Tennessee |
| 3 | William H Farrell | 51 | Head | Farmer | Tennessee |
| 4 | Maggie L Farrell | 46 | Wife | — | Tennessee |
| 5 | Jewell Farrell | 24 | Daughter | — | Tennessee |
| 6 | Hoyte L Farrell | 19 | Son | Farm Work | Tennessee |
| 7 | G L Farrell | 16 | Son | Farm Work | Tennessee |
| 8 | Doyle Farrell | 13 | Son | — | Tennessee |
| 9 | Glenn Farrell | 10 | Son | — | Tennessee |
| 10 | Jodye Farrell | 6 | Daughter | — | Tennessee |
| 11 | Dorothy Farrell | 4 | Daughter | — | Tennessee |
| 12 | Doris Farrell | 4 | Daughter | — | Tennessee |
| 13 | John W Mcmahon THIS PERSON | 54 | Head | Farmer | Tennessee |
| 14 | Zora Mcmahon | 51 | Wife | — | Tennessee |
| 15 | Viola Mcmahon | 19 | Daughter | — | Tennessee |
| 16 | Clara Mcmahon | 16 | Daughter | — | Tennessee |
| 17 | Johnny B Mcmahon | 13 | Daughter | — | Tennessee |
| 18 | Maurine M Mcmahon | 10 | Daughter | — | Tennessee |
| 19 | Mildred Mcmahon | 7 | Daughter | — | Tennessee |
| 20 | Pauline Mcmahon | 5 | Daughter | — | Tennessee |
| 21 | Granville Mcmahon | 1 | Son | — | Tennessee |
| 22 | William B Riddle | 44 | Head | Farmer | Tennessee |
| 23 | Lillie M Riddle | 20 | Daughter | — | Tennessee |
| 24 | Randolph Riddle | 18 | Son | Farm Work | Tennessee |
| 25 | Lorene Riddle | 15 | Daughter | — | Tennessee |
| 26 | Nell Riddle | 13 | Daughter | — | Tennessee |
| 27 | Gladys Riddle | 11 | Daughter | — | Tennessee |
| 28 | Grace Riddle | 8 | Daughter | — | Tennessee |
| 29 | H D Mcmahon | 60 | Head | Farmer | Tennessee |
| 30 | Catherine Mcmahon | 57 | Wife | — | Tennessee |
| 31 | Annie Mcmahon | 21 | Daughter | Teacher | Tennessee |
| 32 | Mamie Mcmahon | 18 | Daughter | — | Tennessee |
| 33 | Rosie Mcmahon | 16 | Son | — | Tennessee |
| 34 | Novella Loudermilk | 47 | Head | — | Tennessee |
| 35 | Thurman Hanner | 41 | Head | Farmer | Tennessee |
| 36 | Nena Hanner | 36 | Wife | — | Tennessee |
| 37 | Hoyte Hanner | 15 | Son | — | Tennessee |
| 38 | Floy L Hanner | 10 | Son | — | Tennessee |
| 39 | Bebe S Hanner | 5 | Daughter | — | Tennessee |
| 40 | Donald L Hanner | 2 | Son | — | Tennessee |
| 41 | Lloyd Mcmahon | 24 | Head | Farmer | Tennessee |
| 42 | Hattie M Mcmahon | 26 | Wife | — | Tennessee |
| 43 | Lloyd Jr Mcmahon | 7 | Son | — | Tennessee |
| 44 | Sarah K Mcmahon | 5 | Daughter | — | Tennessee |
| 45 | John W Mcmahon | 4 | Son | — | Tennessee |
| 46 | Bernell Mcmahon | 1 | Daughter | — | Tennessee |
| 47 | Ernest H Weatherly | 39 | Head | Farmer | Tennessee |
| 48 | Laura Weatherly | 39 | Wife | — | Tennessee |
| 49 | Wesley Weatherly | 20 | Son | Farm Work | Tennessee |
| 50 | Alta Weatherly | 17 | Daughter | — | Tennessee |
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)