Thread:露伊梨霞/@comment-3261234-20130619203557/@comment-11003905-20130621074028

Only long o and long u are marked with macron. Long e is written as it is in kana (ee in rare cases such as onee-chan, mostly ei), and the same stands for i (ii). What can be exceptions are foreign loanwords (usually in Katakana), so for the nickname of Yui's guitar, ギー太, use of i with macron can be justified. However, for native Japanese words, that's never the case.

So, Keiko Iida and Kana Yoshii shouldn't be changed.