After cycling the power on everything again & manually entering. /dev/cu.usbmodem14261 at a baud of 38,400 - Open CPN
now is receiving ais data from the macbook
I would like to thank everyone for your help and assistance, Particularly to Gerhard for his patience(even though I never could get that one command of yours to give me any info) Thanks. Also, Fogmachine was able to point us to the name of the adapter with your suggested command. And, finally again Gerhard told me what to do with the named adapter.
I still don't know why this connection does not show up automatically as a choice? ( I will make damn sure that I write it down somewhere)
Lastly, Biggest thanks to Dave for a great contribution to sailors and cruisers worldwide.