We happen to have an old family photo with names listed on them. William's middle name is listed as Borland. We found the photo in my Grandmother's belongings after she passed away. Also, after researching, I found that William Borland Beatty's father (also named William) married Elizabeth Borland. It looks as if he was given his mother's maiden name for his middle name.
It would be interesting to share info, as I do have some holes to fill in the family history. My Grandmother was Lois Beatty Manners, daughter of David Arthur Beatty and Martha Belle McConnaughey Beatty.