JM
John Mayer — 1930 US Census Record
Linked across censuses1930 United States Federal Census · Mecklenburg, North Carolina
Our Model Tree links this John Mayer across the 1920, 1930 and 1940 US Censuses in Mecklenburg, North Carolina (XGBoost, ~Confirmed) — first a head (b.~1883), then head of a 3-person household.
Age 47
b. ~1883
Male
Head
Born: South Carolina
Married
1930 Census Record Details
| Census Year | 1930 |
| Location | Mecklenburg, North Carolina |
| Surname | Mayer |
| Given Name | John C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | South Carolina |
| Age at First Marriage | 25 |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Additional Details | |
| Occupation | Laborer |
| Industry | Automobile |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 7000 |
| Radio Set | R |
| Veteran | No |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
| Occupation | Laborer |
| Township / Ward | Charlotte City |
| Est. Birth Year | ~1883 |
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 1930 census.
| Name | Relation to head | Relative to John | Age | Birth yr |
|---|---|---|---|---|
| John Mayer | Head | — | 47 | ~1883 |
| J Mayer | Son | — | 21 | ~1909 |
| Cora Mayer | Spouse | — | 51 | ~1879 |
Census Appearances
1920
Greenville, North …
Head, age 36
Greenville, North Carolina · implied b. ~1884 — 3 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mayer |
| Given Name | John |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | Black |
| Age | 36 |
| Marital Status | Married |
| Birthplace | South Carolina |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Occupation | Driver |
| Industry | Hotel |
| Class of Worker | W |
| Can Read | Yes |
| Can Write | Yes |
| Speaks English | Yes |
| Home Owned/Rented | R |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1930
Mecklenburg, North …
Head, age 47
Mecklenburg, North Carolina · implied b. ~1883 — 3 household members
| Surname | Mayer |
| Given Name | John C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 47 |
| Marital Status | Married |
| Birthplace | South Carolina |
| Age at First Marriage | 25 |
| Father's Birthplace | South Carolina |
| Mother's Birthplace | South Carolina |
| Occupation | Laborer |
| Industry | Automobile |
| Class of Worker | W |
| Can Read/Write | Yes |
| Home Owned/Rented | O |
| Home Value / Rent | 7000 |
| Radio Set | R |
| Veteran | No |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
1940
Mecklenburg-County, North …
Head, age 58
Mecklenburg-County, North Carolina · implied b. ~1882 — 2 household members
●
Primary link
· ~Confirmed · 2 sources
XGBoost
Household
| Surname | Mayers |
| Given Name | John C. |
| Relationship to Head | Head |
| Sex | M |
| Color / Race | White |
| Age | 58 |
| Marital Status | Married |
| Birthplace | South Carolina |
| 1935 Residence (City) | Charlotte City |
| 1935 Residence (County) | Mecklenburg |
| Occupation | crew foreman |
| Industry | park beautification W.P.A. |
| Class of Worker | GW |
| Hours Worked | 2 |
| Income (1939) | 504 |
| Highest Grade | No 6 |
| 1935 Residence | Same house |
| Birth State | South Carolina |
| Birth Country | United States |
| Birthplace (normalized) | south carolina |
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 Mayer across 3 US Census years (1920, 1930 and 1940) in 3 locations, using XGBoost record linkage.
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This person
Anchor record
John Mayer
Head · 1930 · age 47 · b. ~1883 · North Carolina
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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 — Mecklenburg, North Carolina
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1930 US Federal Census — Mecklenburg, North Carolina
Page Contents
50 people indexed on this census page (ia:1930:15thcensus1705unit:0536)
| Line | Name | Age | Relation | Occupation | Birthplace |
|---|---|---|---|---|---|
| 1 | David Abbas | 65 | Head | Laborer | Syria |
| 2 | Eva Abbas | 48 | Wife | — | Syria |
| 3 | Joseph Abbas | 16 | Son | — | Syria |
| 4 | Mike Abbas | 21 | Son | — | North Carolina |
| 5 | George Abbas | 18 | Son | Operator | North Carolina |
| 6 | Grady | 41 | Lodger | Bill Poster | South Carolina |
| 7 | Maggie C. Hill | 31 | Lodger | Bill Poster | Virginia |
| 8 | James Rockill | 53 | Lodger | — | North Carolina |
| 9 | Matthew Karres | 37 | Head | Salesman | Greece |
| 10 | Mary Karres | 33 | Wife | Clerk | Greece |
| 11 | Jimmie Karres | 11 | Son | — | South Carolina |
| 12 | Stacy Karres | 9 | Son | — | North Carolina |
| 13 | Andrew Karres | 6 | Son | — | North Carolina |
| 14 | Gus Karres | 5 | Son | — | North Carolina |
| 15 | Dena Karres | 2 | Daughter | — | North Carolina |
| 16 | Nick Pappas | 43 | Head | Proprietor | Greece |
| 17 | Mary Pappas | 30 | Wife | — | Greece |
| 18 | Peter Zellas | 43 | Head | Proprietor | Greece |
| 19 | Helene Zellas | 30 | Wife | — | Greece |
| 20 | Lula Zellas | 8 | Daughter | — | Greece |
| 21 | Katherine Zellas | 5 | Daughter | — | Virginia |
| 22 | Steve Zellas | 4 | Son | — | North Carolina |
| 23 | Louis Pappas | 43 | Lodger | Proprietor | Greece |
| 24 | Siros, John Pappas | 38 | Lodger | Waiter | Greece |
| 25 | Alex Pappalou | 37 | Lodger | Waiter | Greece |
| 26 | Mary W. Johnson | 54 | Head | — | North Carolina |
| 27 | Bertie Johnson | 36 | Daughter | — | North Carolina |
| 28 | Earl Johnson | 27 | Son | Service Man | North Carolina |
| 29 | Martha Johnson | 21 | Daughter | Saleslady | North Carolina |
| 30 | John Johnson | 20 | Son | Clerk | North Carolina |
| 31 | Edith L. Johnson | 18 | Daughter | — | North Carolina |
| 32 | John C. Mayer THIS PERSON | 47 | Head | Laborer | South Carolina |
| 33 | Cora D. Mayer | 51 | Wife | — | North Carolina |
| 34 | J. C. Jr. Mayer | 21 | Son | Musician | North Carolina |
| 35 | Billy M. Cook | 45 | Head | Inspector | North Carolina |
| 36 | Andy H. Cook | 45 | Wife | Asst. Inspector | North Carolina |
| 37 | Sarah P. Bennett | 19 | Sister | — | North Carolina |
| 38 | Sarah L. Isenhour | 46 | Mother | Nurse | Virginia |
| 39 | David H. Isenhour | 9 | Lodger | — | Virginia |
| 40 | John S. Mccauley | 48 | Head | Contractor | North Carolina |
| 41 | Frances N. Mccauley | 43 | Wife | — | South Carolina |
| 42 | Lena T. Mccauley | 16 | Daughter | — | North Carolina |
| 43 | H. B. Mccauley | 9 | Son | — | North Carolina |
| 44 | Dick Mccauley | 3 | Son | — | North Carolina |
| 45 | Joseph R. Dobbins | 21 | Head | Butcher | North Carolina |
| 46 | Margaret B. Dobbins | 18 | Wife | Stenographer | North Carolina |
| 47 | Morris S. Smith | 60 | Head | Jeweler | Russia |
| 48 | Belle S. Smith | 54 | Wife | — | Illinois |
| 49 | Ethel Smith | 18 | Daughter | — | Illinois |
| 50 | Hannah S. Simon | 80 | Mother-in-law | — | Germany |
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)