One of thoe redundancies that can drive you crazy if you spend too much time thinking about it (which, as you might have guessed, I have) is "first initial." After all, "initial" means "first." The only thing that keeps me patially sane is knowing that, when a form asks for the first initial, they mean "initial of your given name," and they’re not trying to get you tied up in doubletalk.
Most forms ask for your last name, first name, and middle initial (that is, the first letter of your middle name). Your middle name is a second name given to you by your parents, and might honor someone else in the family. My middle name is Connelly, after my grandfather, who was John Connelly. My brother Jim’s middle name is Doyle, after my great-grandfather, James Doyle. With Kip (real name Christopher), Mom gave him the middle name Gerard, just because she liked the name. One day, Kip asked her "who’s Mr. Gerard?" figuring it was someone’s last name. She explained why, hopefully to Kip’s satisfaction. Patrick’s is John, after one of the many Johns in the family (his father, his grandfather, his oldest brother…)
My father’s middle name was Krieger. We have no Kriegers in the family, but Grandma had some dear friends in Cincinnati named Krieger. Mr. Krieger, whose first name was Oscar, passed away while Grandma was expecting Dad, and Mrs. K asked Grandma if the new baby was a boy, could she name him Oscar? Grandma compromised with her and said she’d give the baby the middle name Krieger. Dad didn’t like it, and his high school yearbook lists his name as "William Joseph Holton." Grandma was none too happy about that.
One of the more famous episodes of The Dick Van Dyke Show is the one where their son Richie is upset to learn that his middle name is "Rosebud." Rather than ruin the episode for you, here it is, if you have 25 minutes to spare.