Been feeling a little nostalgic today. I found this on You Tube. It's an old video of William Branham, one of the most famous healing evangelists during an unusual outpouring of the Holy Spirit that occurred between 1947-1953 known as the Healing Revival. William Branham was famous for "Words of Knowledge" which in pentecostal/charismatic belief is supernatural insight into a person's life or situation and is one of the nine gifts of the Holy Spirit mentioned in 1 Corinthians 12:8.
While it's true that Branham fell into heresy during his later years (he got to thinking that he was Elijah), there's no evidence that William Branham faked his supernatural knowledge. If what you are about to see happened today, people would assume he had an earpiece feeding him the information. One reason why I believe that the words of knowledge operating in Brahman's ministry were real is because Gordon Lindsay, the founder of Christ for the Nations Institute (the Bible school where my wife and I met) was his manager for a period of time and very, very few people dispute Gordon Lindsay's personal integrity.
There's also a famous photo of Branham with what appears to be a supernatural halo floating over his head. This made headline news when it appeared. You can view the photo and read Gordon Lindsey's commentary on the incident here.
I hope this builds your faith...or at the very least make you wonder.