Hi.Your assumptions of my abbreviations are correct.:o)
Nothing of what you mentioned looks familiar at this time, though, but then your spelling of Murdock is different from mine, though I have seen the name spelled wrong as recently as the wedding announcement of my own mother's by a newspaper in 1965 so there is always the possibility.
I will be sure and let you know should I come across anything, though.
Thanks for writing and best of luck in your searches.