How To Use Mid-fifties In A Sentence

I happened to notice a couple in their mid-fifties dancing alongside the bar stars, ravers, and sweaty topless men.
When Frank was at his creative peak in the mid-fifties, a young Elvis hit with the hammer that was Rock & Roll, knocking Sinatra down several pegs as popular music upheaved huge and fearsome stalagmites around him. Archive 2009-08-01
A spry and quick-witted woman that, although in her mid-fifties, still didn't act a day over twenty-five, she had been, and always would be, the person that I truly looked up to the most.
A woman in her mid-fifties stood on a ladder organizing books on a top shelf, her stiff, dark hair long since made limp by the humidity.
She is at least in her mid-fifties (says she qualifies as a senior citizen) and she has some medical background training and worked doing in-home care.

With the exception of three years in the mid-Fifties, Rowicki continued as its artistic director and principal conductor until 1977.
Dave Michener, a Disney animator, story artist and director who started at the Mouse House in the mid-fifties, told me he had to keep his night job managing a gas station when he began work as a Disney in-betweener to make ends meet... A Few Words About Salaries
For instance, in Ginsberg's Journals for the mid-fifties, his concern to develop long syllabic lines, using the prosaic and the discursive approaches, clearly leads to the incantatory effects of his most celebrated poetry.
Mid-fifties, short black hair, grey moustache, distinctive Russian accent. Need I go on?
Mid-fifties, short black hair, grey moustache, distinctive Russian accent. Need I go on?
For instance, in Ginsberg's Journals for the mid-fifties, his concern to develop long syllabic lines, using the prosaic and the discursive approaches, clearly leads to the incantatory effects of his most celebrated poetry.