The query for information about Wilmer and Elva Phillips was posted by a student of mine. Sorry you have not received a response before now.
I am in the process of writing a book about the George brothers (James, Charles, Jeremiah, and Osman) who were in the 10th Vermont Infantry during the Civil War. There is a typescript of Charles' letters at the UW-River Falls Research Center, with a copyright assigned to Elva Phillips. I am trying to locate a family member who could give me copyright release so that I could use material from Charles' letters in my book.
Any help you could provide would be greatly appreciated!