Olivia Waite is a romance author, practicing feminist, and wide-ranging dilettante.
This book was first published in 1965, and even a dabbler in academic history like myself can see the spots where it hasn't worn well over the decades. Descriptions of Northwest Coast Native American tribes are cringe-worthy in spots, though his overall tone is conscious of and empathetic with their losses and oppressions.
Still, I'm quite enjoying it so far -- a nice narrow window onto the subject I've been studying from a national (or mostly eastern) perspective.