This obituary is part of a series about people who have died in the coronavirus pandemic. Read about others here.

Philip Kahn believed that history repeats itself, a truism that has hit home for his family in extraordinary fashion.

His twin brother, Samuel, died as an infant during the Spanish Flu pandemic of 1918-19. Now Mr. Kahn himself has died of the coronavirus. He was 100.

“He was a very healthy 100,” Warren Zysman, one of his grandsons, said in a phone interview. “He watched the news, he was completely aware of the pandemic. When he started coughing, he knew he might have it, and he knew the irony of what was going on.”