All I can think of is Mere-Glim from the Books "The Infernal City" & "Lord of Souls", And Thoricles Romus, an Argonian Elder Council Member. (He's not really known, but he's Notable I suppose)
http://www.uesp.net/wiki/Bloodmoon:Swims-In-Swells was (probably) the first Argonian to fly.