I know that this sort of straddles the gray area between Peskies and Utility, but since these users are marine mobile operating on real HF-SSB marine frequencies...I decided to post in Utility.  Hearing at least two different QSOs in progress on 6215 kHz, USB mode.  One of them involves a YL, but her signal is weakest.  
Heard via the Westminster, MD KiwiSDR.  Tune in time: 2138 UTC.  YL now chatting at 2139 UTC, does not seem to be distress traffic to me...  
