The A with macron is HMTL 256 and 257: Ā and ā which work in IE but not Netscape (print as ?). The std. chars. only go up to 255.
Liland has a more complete listing than yours, John: CHARS
They all work in IE but not Netscape for those above 255. I can get a bunch of chars. by switching to Cyrillic, Greek, etc. but switching for one letter is tedious, and I don't know if they will print here. See Joe's comments in another current thread on "fadas." Apparently Mudcat can lose these character modifications.
All of this has appeared in other threads. Too bad the programs in this regard are not standard across "brand" names.