John is currently serving on the  ISA Advisory Board and has previously served on the ISA Board of Directors in 2007 in the role of Vice Chair.

John can be contacted at

John is an accountant and has been involved in the stuttering self-help movement for over 35 years. He helped form the Australian Speak Easy Association (ASEA) in 1981 and is a past President of that association as well as a former Director of the Australian Stuttering Foundation with Profs. Ashley Craig and Mark Onslow. John was instrumental in forming the ASEA speech technique booster programs and is highly experienced in the use of the prolonged speech method as well as the McGuire Program. John gave a presentation on the prolonged speech method at the 1st World Congress for People Who Stutter in Kyoto, Japan in 1986. He also attended the 2nd, 3rd, 6th, 7th, 8th, 10th and 11th World Congresses and is well known in the international self-help movement. John now edits a blog on stuttering under his writing name of Stuttering Jack ( and helps keep people who stutter informed about stuttering related issues through his Facebook profile at John conducts voluntary stuttering treatment intensives and is currently assisting the Vietnamese Stuttering Association with treatment and administrative matters in establishing their association.