The questioners use of the term "expert witness" is too broad for a specific answer. There are too many conflicitng opinions on various topics concerning the 'Frye Motion" and it's use under varying circumstances. Enter > frye motion < into any search engine and you can get more than enough reponses to do your own research.
Don Frye's birth name is Donald Frye.
Leslie Frye's birth name is Leslie Jane Frye.
Sean Frye's birth name is Sean Anthony Frye.
Virgil Frye's birth name is Virgil Charles Frye.
Northrop Frye's birth name is Herman Northrop Frye.
Francis Frye's birth name is Francis Linton Byers Frye Jr..
Curtis Frye was born in 1951.
James Frye died in 1776.
Frye's Inn was created in 1818.
Wayne Frye was born in 1930.
Joseph Frye was born in 1712.
Joseph Frye died in 1794.