Not a show-biz figure, but one of my personal heroes, architectural historian and preservationist David Garrard Lowe, 91, died on Sept. 21. Lowe spent his working life writing and lecturing about Chicago and New York architecture; he wrote such books as Lost Chicago, Beaux Arts New York, Art Deco New York, and Stanford White’s New York. Lowe also lectured at colleges and museums around the country. I am an architecture nut myself, dating from Ms. Lange’s high school course, which took us on walking tours of Philadelphia. In New York, I saved bricks and tiles from the demolition sites of the Palace and Rialto Theaters, the Palladium, and the 1860s Levi Parsons Morton house—I have my own modest “build your own New York” collection. So in memory of David Garrard Lowe, go out and explore old buildings, and read some of his books.