Gilman died in Philadelphia, Pennsylvania, on May 2, 1814; he was buried in Exeter Cemetery in Exeter, New Hampshire.
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Gilman died in Philadelphia, Pennsylvania, on May 2, 1814; he was buried in Exeter Cemetery in Exeter, New Hampshire. He was a strong believer in education, and in his will named Phillips Exeter Academy as a benefactor.<ref>[https://books.google.com/books?id=kJxDAAAAIAAJ&pg=PA79 Familiar Sketches of the Phillips Exeter Academy and Surroundings]</ref>
The Ladd-Gilman House was made a National Historic Landmark in 1973.<ref name=house />
The Ladd-Gilman House was made a National Historic Landmark in 1973.<ref name=house />