That is what invention is, most of the time: not the dramatic breakthrough but the careful improvement, the specific solution, the practical advance.

And that is what Mary Kenner did, five times, across five decades of inventive work.

She invented.

She persisted.

She deserves to be known.

— END —

The Man Who Never Got Credit Either

The history of overlooked inventors is not only a history of Black inventors or women inventors, though race and gender are the most powerful and best-documented determinants of who receives recognition and who does not.