Oh Boy! Caprai is another well known old established Italian family name in the Priest River Area. I know there is info on them as well. I'll send what I find for you.
Also if you want the coies I printed off (Some have pics of the people) just send me a self addressed, stamped envelope.
PO Box 482
Hayden, ID 83835
Marylyn Cork is the editor or was the editor of the Priest River Times and has lots of information on the Italian Families of the Priest River area. I will find her address and pass it on to you.