Introduction

Biography

William was the son of Will­iam Da­vid Slat­er and Mel­vi­na Eli­za­beth Will­iams, and hus­band of Net­tie M. Wash­ing­ton (mar­ried 1910).

When he was five years old, his fa­mi­ly moved to near Sal­li­saw, Ok­la­ho­ma.

In 1915, he be­gan preach­ing at a school house named Shi­loh in east­ern Ok­la­ho­ma.