Gerhard Kallmann, 97; architect who co-designed Boston City Hall
Fifty years ago, neither Gerhard Kallmann nor his friend and would-be partner, Michael McKinnell, had designed buildings under their own names. Teaming together, they entered a competition to envision a new City Hall. Their proposal was chosen from among some 250 entries. With City Hall, which has drawn much praise and even more criticism, and buildings such as the American Academy of Arts and Sciences in Cambridge, Mr. Kallmann established a reputation as one of best architects in Boston’s history.