#1 Hallmark, Inc.
#2 Hall, Mark (Mark Everett) author of Sunburst (LC 2011186807)
#3 Hall, Mark, 1956- author of Implementing information and consultation; full name Mark Jeremy Hall (LC 2001047978)
#4 Hall, Mark, 1969- author of Lifestories (LC 2006069931)
#5 Hall, Mark, author of Mysteries of magic; may be the same as Mark A. Hall, although there is no evidence for this initial.
#6 Hall, Mark, director of The band; not the same as director Mark Hall, 1936-2011 (LC undifferentiated 89125716)
#7 Hall, Mark, author of American place.
#8 Hall, Mark, 1936-2011 - movie producer, director & writer