resident, Mary Houck.

Dr. Houck, a career anesthesiologist, was born in Flint, Michigan, in 1934.

“I was an only child,” she said. “My name was Mary Hellthaler. My father was born in Germany in 1901 and he just made it not to be drafted in the first World War. When the German revolution came in 1918, he went to the Netherlands. He was an optician.

“He worked in an optical shop in Rotterdam. He stayed…