Peter P. Petkoff, a structural engineer who helped realize the visions of famed architects Eero Saarinen and Minoru Yamasaki, died Jan. 9 at age 98 of vascular complications.
John Belle, who died this week at 84, helped restore several of New York City’s most important buildings, including Grand Central Terminal and the soaring Enid Haupt Conservatory at the New York Botanical Garden.