found: Frase, R. S. Minnesota misdemeanors and moving traffic violations, c1982 (a.e.)t.p. (Martin J. Costello) p. 509 (instructor, Univ. of Minn. Law School and Wm. Mitchell College of Law; partner in Peterson, Bell & Converse, St. Paul)
found: Costello, Martin J. Hating the sin, loving the sinner, 1987 [dissertation]:title page (by Martin John Costello)
found: Costello, Martin J. Hating the sin, loving the sinner, 1991:title page (Martin J. Costello)
found: Costello, Martin J. Minnesota misdemeanors and moving traffic violations, 1999:title page (Martin J. Costello)
found: Mitchell Hamline School of Law (Website), viewed September 18, 2017:Faculty/Adjunct Faculty/Martin J. Costello (Martin J. Costello is an attorney specializing in criminal law and employment and labor law. Costello has over 30 years of prosecution experience, working in various counties in the Twin Cities area ... He also handles arbitrations involving labor and employment law issues, representing Teamsters Local No. 120 in St. Paul, Minnesota ... He started his law career with the Ramsey County Attorney's Office and then worked with a St. Paul law firm handling municipal clients until he co-founded Hughes & Costello in 1992 ...) - https://mitchellhamline.edu/biographies/person/martin-j/
