From his friends, co-authors, and colleagues
Bill and Sandy Arlinghaus
Frank was a mentor to Bill.
Floral arrangement by
S. Arlinghaus from a single scanned lily by Alma S. Lach.
Solstice: An Electronic Journal of Geography and Mathematics,
Institute of Mathematical Geography, Ann Arbor, Michigan.
Volume XVI, Number 1.
http://www.InstituteOfMathematicalGeography.org/