I found reference to a son of William and Emma Yearance (Utah Census lookup) in a book of mine about Lehi history, his name was Frank Yearance. Frank owned a Saloon in Lehi, later the building the Saloon was in was renamed the Yearance Building. There is a photo of the Saloon in the book with several people standing in front of it. The photo is not very clear however.
If Frank is of interest to you, let me know.