Rarely did I hear who wrote what unless there was a reason for knowing. Here's a few names that I remember, but with qualifications.
Bklt: How Can Blood Save Your Life? 1990: Eugene Smalley
Bklt: Should You Believe in the Trinity? Harry Peloyan
Insight on the Scriptures, Vol. 1 and 2: Compiled by Karl Adams. He oversaw about 50 people at one point or another who were assigned subjects.
Jehovah's Witnesses-Proclaimers of God's Kingdom: Karl Adams and David Iannelli
Questions Young People Ask: Lee Waters
Revelation-Its Grand Climax At Hand: Robert Pevy
All Scripture Inspired of God: Robert Pevy
Reasoning From The Scriptures: Karl Adams
Yearbooks: Karl Adams
The Truth That Leads to Eternal Life: Harry Peloyan
Happiness-How to Find it? Lee Waters
Life-How Did it Get Here? By Evolution or by Creation?: Harry Peloyan