Where in the world is Miggles?

San Francisco's Union Square District is home to this piece of literary history:

"Are your glasses charged, gentlemen?" said the Judge, solemnly taking off his white hat.
They were.
"Well, then, here's to MIGGLES. GOD BLESS HER!" Perhaps He had. Who knows?

And so ends the story of Miggles, by Bret Harte, a one-time writer for The Californian in San Francisco (and colleague of Mark Twain).

You can find Miggles and more of Harte's characters by solving the puzzle below.