Roger, this is indeed interesting. Here's a video of her presentation "The Civil War 1865 Black Diamond Naval Disaster CSPAN September 6, 2020 10:10am-11:00am EDT" https://archive.org/details/CSPAN3_20200...l_Disaster
I wonder if Karen Stone, in her capacity as manager of the St. Mary's County, Maryland Museums Division, knew Laurie.
Anita, after I read your post I became curious, too. I sent her an email, and the answer is "yes." She knew Laurie while in her current position and previous one as well. She also mentioned she is "still very much involved with the Surratt House Museum."
Shipwreck on the Potomac is extremely well researched and thorough in its background, event, and aftermath, despite its relatively short length (126 pages--a cakewalk compared to my having just read before it Chernow's doorstop Mark Twain). Lots of good pictures, also. Stone has done a nice job of keeping it readable while also being scholarly. I enjoyed it, and would recommend it.