Armstrong, HW (1986)

Autobiography of Herbert W Armstrong (vol 1). Pasadena, California.

Armstrong, HW (1986)

Autobiography of Herbert W Armstrong (vol 2). Pasadena, California.

Nickels, RC

Early Writings of Herbert W Armstrong 

Nickels, RC (1999)

History of the Seventh Day Church of God (vol 1). 

Nickels, RC (1999)

History of the Seventh Day Church of God (vol 2). 

Nickels, RC (2004)

Six Papers on the History of the Church. 

White, C

GG Rupert. Man of God 

White, C

Herbert W Armstrong. Man of God 

White, C

Pioneers of the Worldwide Church of God 

White, C

Worldwide Church of God Pioneer Timelines.