Karen, as always, has given you excellent advice. "Heavenly Highway Hymns" is definitely still in print:
Copies are available through the above site, Christian book stores as Karen mentions, and online booksellers like amazon.com. It's entirely possible that some of the other books, especially recent ones, might also be available at you local Christian book store.
And as Karen says, abebooks.com would also be an excellent place to look; at least one of the books you're looking for ("Singing Praises") is available there now and you can sent up a "want" for the ones that aren't. Another option would be to contact the people that run the following web sites or phone numbers:
For Mull's Singing Convention: http://www.mullsongbooks.com/index.html
[Only No. 7 is mentioned, but they might still have copies of No. 5 or be able to tell you where you could find a copy]
For Ben Speer: http://www.stampsbaxterschool.com/
[Ben Speer Music doesn't apparently have a website, but their phone number in Nashville is (615) 329-9999]
For books by Charles Towler: http://ngsgm.com/page2/page9/towler.html
[Gospel Heritage Music doesn't apparently have a website, but their phone number in Cleveland, TN is (423) 472-1260]
I've had no luck tracking down information on "Jesus is All to Me" or "Parker Book 2010." Hopefully someone else can help with these.
South Ogden, UT
are gospel singing books, I was hoping this very intelligent group might offer
some helpful hints.
>>Heavenly Highway Hymns
>>Mull’s Singing Convention No. 5
>>Jesus is All to Me(This is a blue book with clouds)
>>Parker Book 2010“Historical Gospel Shape Note Singing”
by David Parker
>>Matches Grace(Been Speer Music) complied & edited
by Harold Lane
>>Victory(complied by Charles Towler)
>>Thanks so much
to anyone who can help,