Mr. Thieblot was active in Republican politics and served a term on the Baltimore City school board in 1971.
"Even those of other persuasions agreed that his positions were well-reasoned, seldom disparaging and commonly presented with humor and charm," his brother said.
Some members of the City Council expressed fears that Mr. Thieblot was too personally conservative to serve on the school board. He was confirmed by a vote of 15-4.
For more than four decades, Mr. Thieblot and his wife, artist Suzanna Cohoes Thieblot, invited hundreds of neighbors to their home each December.
"Bob stationed himself at the front door, greeting some of the 200-plus guests, while Suzie circulated through the multiple floors of their Bolton Hill home," reported Sun columnist Rob Kasper last year. "Bob, a rock-ribbed Republican living in a neighborhood swarming with liberal Democrats, once told me: 'Suzie and I see ourselves as missionaries. We believe that if we douse our liberal neighbors with enough good wine and smoked oysters, they will eventually begin to see the error of their ways.' "
A memorial gathering will be held at 5 p.m. May 14 at the Bar Library Company of Baltimore, Room 618 of the Mitchell Courthouse, Fayette and Calvert streets.
In addition to his wife of 50 years and his brother, survivors include a daughter, Aline Thieblot Walker of Glen Burnie.
