No Alternates Allowed! (boys)

One of the biggest annoyances people have seems to be finding a name you "don't have to spell all the time".   Even the traditional classics can have a myriad of spelling alternates. Rarer names tend to have fewer variants, but then you run the risk of people having never heard of them at all! So, here're boys names from the SSA's top 500 with only one or two spellings.
I certainly don't recommend some of these spellings, but they are in use!

• Abel/Able
• Abraham
• Adan/Adon
• Alberto
• Alfredo
• Ali
• Andres/Andrez
• Armando/Armondo
• Arturo
• August
• Beckett/Becket
• Brett/Bret
• Brooks/Broox
• Byron/Byran
• Carlos/Karlos
• Chandler/Chanler
• Charles
• Colt/Kolt
• Dallas/Dallis
• David/Dayvid
• Davis
• Dexter
• Diego
• Donald
• Douglas
• Edgar
• Eduardo/Edwardo
• Edward
• Emerson/Emmerson
• Enzo
• Ernesto
• Ezra/Ezrah
• Fernando/Fhernando
• Francisco/Fransisco
• Frank/Franck
• Gael
• Gary/Garry
• George/Jeorge
• Gerardo
• Gideon
• Grady/Gradey
• Grant
• Gunner/Gunnar
• Gustavo
• Harrison/Harison
• Hector
• Hugo
• Hunter
• Jaime
• Jasper/Jazper
• Jerry/Gerry
• Jesus/Jjesus
• Joe
• Johan/Johann
• Jonah/Jona
• Jonas/Jonahs
• Jorge
• Josue/Jossue
• Juan
• Judah/Juda
• Jude
• Julio
• Keith/Kieth
• King/Kyng
• Lance/Lantz
• Larry/Larri
• Leo/Lio
• Leon/Leeon
• Leonardo
• Leonel/Leonell
• Lorenzo/Larenzo
• Louis/Lewis
• Luis/Luiz
• Luke/Luc
• Marco/Marko
• Marcos/Markos
• Mario
• Marshall/Marshal
• Martin
• Matthew/Mathew
• Maurice/Marice
• Maximiliano/Maximilliano
• Miguel/Migel
• Mitchell/Mitchel
• Oliver/Olliver
• Orlando
• Oscar/Oskar
• Pablo
• Parker
• Paul
• Pedro
• Peter
• Porter
• Quinn/Quin
• Randy/Randi
• Raul/Rahul
• Richard
• River/Ryver
• Robert
• Roberto
• Rodrigo
• Romeo
• Ronald
• Russell/Russell
• Salvador
• Sam
• Santiago/Santhiago
• Saul
• Sawyer
• Scott/Scot
• Sergio/Serjio
• Seth
• Simon/Symon
• Spencer/Spenser
• Terry
• Theodore/Theodor
• Thomas/Tomas
• Timothy/Timmothy
• Travis
• Trent
• Troy/Troi
• Tucker/Tukker
• Ty/Tye
• Uriel/Yuriel
• Victor/Viktor
• Walter
• Warren