Born and raised in a lower-middle class family in the Bridgeport community of Chicago, Ill., Dennis was the third son of four children and had early aspirations of entering the priesthood. After completing four years at a high school preparatory seminary, he decided against the priesthood and worked for a year before enrolling at Loyola University of Chicago, majoring in English and Sociology.
Upon graduation from Loyola, Dennis entered the U.S. Army and completed Infantry Officer’s Candidate School (OCS). During his tour of duty, from 1965-68, he was assigned to the Armed Forces Courier Service at USAREUR Headquarters in Heidelberg, Germany and delivered classified material throughout western Europe during the height of the Vietnam War.
He was honorably discharged in 1968 .It was during his Army tour of duty that Dennis began exchanging letters with the woman who would become his wife, his sister-in-law's kid sister, Mary (Maggie) Brown. Dennis and Maggie were married for 41 years when Maggie passed away.
His book, “Wouldn’t It Be Something,” was published in November, 2013.
He continues to live in the northwest suburban community of Buffalo Grove, Ill., near his four children and six grandchildren.