Kim Loweke lives 360km from Kendall in northern NSW, where William vanished almost two years ago.
She is the best friend of William's grandmother, Natalie Collins.
It is understood a link has been found between Ms Loweke and Debbie Jones, whose estranged husband Tony Jones is considered a person of interest. He has been questioned extensively by police and had his car seized for forensic examination.
Ms Loweke said detectives also took a keen interest in her silver Holden VX Commodore, which is a similar shape and colour to one seen on the morning William disappeared.
Ms Loweke is currently living with Jones' brother-in-law and personally knows Bill Spedding, a washing machine repairman who has also been questioned as a person of interest in William's disappearance. Mr Spedding has always denied any involvement in Williams disappearance.
Ms Loweke said police also questioned her about a Department of Housing application she had made for a three-bedroom home that she could share with William's grandmother.
https://www.9news.com.au/national/2...dmother-with-links-to-two-persons-of-interest