He is the only mayor of Murray to have two non-consecutive terms.

Since that time, he has been the only mayor many Prospect residents have known.

He is the only mayor ever for Red or any of its predecessors.

She is so far the only female mayor of Chicago.

She is to date the only female mayor of Seattle.

He was the first, and so far the only mayor, to have been elected for two discontinuous terms.

She has been the only Jewish mayor so far.

Clark was elected to be the first and only mayor of the borough council, serving in 1851-1852.

He remains the only mayor of Moscow to be assassinated.