( Local time   -  April 22 at 8:00 PM tonight to 8:00 PM tomorrow )

List of stations worlwide... etc        http://gx4crc.com/   

Two IMD stations in Massachusetts 

KM1CC Representing the Marconi 1903 Trans Atlantic Wire Station on Cape Cod, https://www.facebook.com/Km1cc-Marconi-Cape-Cod-Radio-Club-194311877270636/

 W1AA/MSC ...      Representing the 1901 Marconi Shore station on Nantucket at Siasconset, http://www.nha.org/history/hn/HN-fall90-wireless.htm

 Whitey  K1VV