Gordon Marshall Petersen (1921-1996) was a British raised, half-American mathematician who received his B.A. in mathematics from Stanford University in 1943 and his PhD from the University of Toronto in 1951. Petersen was well known for his research in classical analysis, particularly sequences and inequalities. He was also known for his teaching and scholarship, which lead him to translate and edit several other important works, such as the English translation of Alexandroff's The Theory of Groups. He was a member of the London Mathematical Society for over 30 years. He was also known as a bit of globetrotter, holding positions at universities in a half-dozen countries in his life. Roy F. Graesser (1900-1972) received his B.S., M.S. and Ph.D.degrees from the University of Illinois. He joined the The University of Arizona in 1926 and remained there the rest of his career. He became Department Head in 1938 and served until 1959. He was known for his research in mathematics education and for building the University of Arizona math department into a solid program almost from the ground up. A Department Chair in his name was established at the mathematics department in his memory after his death. Karo Maestro is the founder and editor of Blue Collar Scholar/Createspace publishers. He was a distinguished undergraduate student as a double major in mathematics and biochemistry whose poor health and personal tragedies prevented completing graduate studies. Unbowed and undaunted, he plans to return to ultimately obtain a PhD in pure mathematics before dying. His company, Blue Collar Scholar is committed to making high quality sources of mathematics-both original works and reprints-available widely and inexpensively to students of all backgrounds.