McLarty or MacLean from Isle ofMull or Muck

[mcany]

I am still trying to find any information on my family from Scotland. My grandmother was Jessie Mc Larty or
Jessie MacLean from either the Isle of Mull or Isle of Muck. She was born around 1900 give or take a year, and emigrated to Canada in 1930 with her young son John, my father. She also had a sister Augusta (Gussie) who also came to Canada around the same period, and at least one other sister called Mary. My grandmother died before I was born and my father died a few years ago without leaving us much information about his family history. Any help in researching my family tree will be appreciated!