What do you mean Grandpa Glen wasn’t Grandpa Glen?

Everyone knows Grandpa Morrow as Grandpa Glen Morrow, however that was not his real first name.  His real first name was actually Floyd, and his middle name was Glen, so he was really Floyd Glen Morrow.  

He apparently went by Floyd until sometime after his marriage.  He had always went by Floyd on everything, which is what his parents had named him, but then after his marriage he started going by Glen.  On his wedding announcement in 1917 he was still Floyd, but on the 1920 census he was going by Glen, and everything after that time was also Glen.  Why?  Don’t know, it may have been he turned 21 on his wedding day so maybe he decided he didn’t like Floyd and preferred Glen so he was going to go by that, maybe his new wife didn’t like Floyd and preferred Glen, or maybe something entirely different.