Patrick Kendall Willoughby, 66, of Huntingtown, MD passed away in Lothian, MD on June 12, 2019. Patrick was born on September 6, 1952 in Washington, D.C. to the late Samuel and Kathryn Riley Willoughby. He had lived in Maryland his entire life. Patrick had been employed as an HVAC mechanic for East Coast Mechanical. He loved the water and his two dogs, Molly and Buffy. He also enjoyed fishing, eating crabs and trying his luck on the slot machines. Patrick is survived by his sons, Patrick Willoughby of Huntingtown; Jason (Amanda) Willoughby of Lusby, MD; daughter, Heather (Charlie) Hankins of Lusby, MD; sister, Mary Jane Mitchell of Indian Head, MD; former sister-in-law, Connie Willoughby of North Beach, MD and seven grandchildren, Brianna, Blaine, Boston, Jonathan and Cameron Willoughby and Sophia and Jameson Hankins. In addition to his parents, Patrick was predeceased by one brother, Samuel "Buddy" Willoughby, Jr. and one sister, Patricia Wilkerson.