Okay. In DEs other than KDE, localedrake doesn't work.
So far, the only solution for using 2 languages on a system is to run addlocale to switch to the second language. Reboot. Login and again run addlocale to switch back to English. Reboot. Create the second user. Logout. Login as second user using the method below. (If already created, just login to second user.)
Choose the language icon on the GDM screen. Choose the alternate language. >You will be asked if you want to restart GDM in the alternate language.< Enter the user name and password. Click <Enter>; a window will pop up to ask to set the language as default, choose "For this session only."
After login, there will be a couple of windows asking to update the file names. Accept them.
At the present time, this login procedure has to be used for every login to the second user desktop in the second language.