Vincent Mayor Alannah MacTiernan 'not thinking' about running for Lord Mayor Alannah MacTiernan, Mayor of the Town of Vincent. ALANNAH MacTiernan will not consider running for the role of Perth Lord Mayor while the City of Vincents future remains uncertain. The Vincent mayor said protecting the City's interests was her top priority during an interview last week about State Government plans to reduce the number of metropolitan councils. "I'm not even going to think about that at this stage," she said. We really want to see what is going to happen to the City first... then we will look at what the other potential options are. Ms MacTiernan said while Vincent preferred to remain its own municipality, a merger with Perth was the more likely outcome.