The noun evangelist has the regular S plural evangelists.
In Acts 21:8 and 2 Timothy 4:5. The plural form is found in Ephesians 4:11.
It would range from Zero for a Jehovah's Witnesses evangelist; to an enormously high number for a Protestant evangelist.
Henry Drummond - evangelist - was born in 1851.
Michael Reid - evangelist - was born in 1944.
Francis Murphy - evangelist - died in 1907.
David Watson - evangelist - died in 1984.
John Darby - evangelist - was born in 1800.
Henry Drummond - evangelist - died in 1897.
Johann Evangelist Holzer was born in 1709.
Johann Evangelist Holzer died in 1740.
John Evangelist Stadler was born in 1804.
John Evangelist Stadler died in 1868.