Former members who were alive during William Branham's "Faith Healing" campaigns remember some of the more unusual events during the meetings. Some remember select people being offered wheelchairs during the long "prayer lines", especially those with back trouble or difficulty standing. To viewers in the audience, those particular cases seemed more spectacular; when viewers watched the afflicted rise from a wheelchair, it was difficult to determine which visitors entered the "prayer line" in a wheelchair. In some cases, such as William D. Upshaw, who was very mobile for decades before he entered a "prayer line", William Branham used this to his advantage by claiming that the afflicted person on the platform had been restricted to a wheelchair.
And I looked down, and I found the man. He was setting back in the audience there in a wheelchair, but I didn’t get it just right. I didn’t see him healed. I didn’t say nothing about it. Already while I was standing here, already seen two people healed right here in the meeting tonight (That’s right.), standing right here now. Oh, I know they’re healed right now. That’s right. And it’s… I noticed it. And then when I was leaving the platform, I told my manager, Mr. Baxter, about it and that was—which was managing the meetings at that time. And the… When I went out then I seen Mr. Upshaw healed and happy. And I told Mr… I seen there it was. And here he is. He’s well.
Branham, William. 1951, May 1. Exhortation Of Divine Healing
Researchers who have analyzed Branham's prayer lines have noticed memorization techniques and other devices used for the spectacular effects of the Stage Persona. This is a difficult analysis, considering the fact that most of the "[ Blank.Spot.On.Tape ]" edits to the recordings and transcripts occur during the "prayer line" of a recording. Prayer Cards were used to collect names, addresses, diseases, and other personal information prior to the meetings. Many people who submitted Prayer Cards in one meeting were not called to the platform, and were called to the platform in subsequent meetings without having submitted a second prayer card. Branham "supernaturally discerned" the disease or affliction listed on the prayer card in the former meetings.

https://william-branham.org/site/topics/prayer_lines