Marble 6 looks Vacor to me also.
Marble 5 could be Alley.
Not Popeye on #4. Possibly Jabo. Not sure.
#3 could be an Akro slag. If it's vintage, then Akro slag. If it turns out to be newer, then Vacor.
#2 not oxblood. I don't have a guess for maker at this time.
#1 ???