No, Charles Johnson is not still singing and visiting churches. The gospel singer passed away several years ago from a massive heart attack.
Charles Trenet went by Le Fou Chantant (The Singing Fool or The Singing Madman).
singing
jack Johnson is the correct person
Johnson sister
Martin Luther
Klaus Danzeglocke has written: 'Singen im Gottesdienst' -- subject(s): Music in churches, Singing, Protestant churches
Charles mingus was influenced by church songs and the choir singing.
Ray Charles
Merion James Johnson has written: 'An investigation of the effect of training in the articulation of vowels by the speaking voice upon the articulation of vowels by the singing voice' -- subject(s): Diction, Choral singing, Singing, Phonetics, Vowels
Joseph Strong has written: 'The duty of singing, considered as a necessary and useful part of Christian worship' -- subject(s): Music in churches, Singing
Many churches juse them now but they do have more problems that wired mics.
It really depends on where you live. Ask around in music shops and maybe churches near you to see if there are any private instructors who offer singing lessons.