Folks who oversee historic properties dread the prospect of events or accidents that destroy important — and often singular and irreplaceable — works of art or collections. Such a worst-case scenario came to pass in April 2024, when the library ceiling collapsed at Boscobel, a historic circa 1804-08 Federal home in Garrison, N.Y. We reached out to executive director and curator Jennifer Carlquist for an update on what was lost, survived or needed to be repaired, where things stand wi