If either of the Charles Mayer’s below appear to be correct, there are more records that can be found using the free search tool at: https://familysearch.org/search
Texas, Deaths, 1890-1976
Citing this Record "Texas, Deaths, 1890-1976," index and images, FamilySearch (https://familysearch.org/pal:/MM9.1.1/JD6K-SPV
Charles Mayer Jr.
Death 02 Dec 1951 Legion Br., Kerrville 1, Kerr, Texas
Male White Single Laborer
Age 39 years 8 months 6 days
Cause of death: Suicide
Birth 26 Mar 1912 Texas
Marital Status: Single
Father Charles Mayer Birthplace: Minnesota
Mother Trinedad Chaves Birthplace: Mexico
Residence Place: Eagle Pass, Maverick, TX
Cemetery (Original): Unknown
Burial Place: Eagle Pass, Texas
Burial Date: 04 Dec 1951
Informant's Name (Original): X
GS Film number: 2074926
Digital Folder Number: 4167216
Image Number: 2790
Reference ID: v X cn 63836
More records on this family:
https://familysearch.org/search/record/results#count=20&query=%2Bgivenname%3Atrinidad~%20%2Bsurname%3Amayer~%20%2Bbirth_place%3Amexico~%20%2Bbirth_year%3A1870-1890~%20%2Bresidence_place%3Atx%20%2Bresidence_year%3A1880-1940~%20%2Bspouse_givenname%3Acharles~%20%2Bspouse_surname%3Amayer~%20%2Bfather_surname%3Achavez~