The families of the missing pair have spoken for the first time today since they vanished.
Mr Hill's family said in a statement that they were "deeply saddened that Russell and Carol have been missing for a month".
They also thanked the police, SES and volunteers and said "we are pleading to anyone who has any information to please come forward".
Both families said their disappearance is out of character.
The former Country Women's Association President Carol Clay was expected to return home on March 29, but neither have been seen since.
The search resumes today.
It is not known what they were wearing at the time of their disappearance.
Anyone who sights Russell or Carol is urged to contact triple zero (000) immediately.
Anyone with information is urged to contact Crime Stoppers on 1800 333 000.