Alan Schofield Parkes died on June 2 at home in Chilmark. He was 88.

He was born, along with his twin brother John, to the late William and the late Mary Heister Parkes in Philadelphia on Dec. 5, 1933. He attended Swarthmore College, where he earned a degree in psychology in 1955. He then earned a PhD in physical chemistry from the University of Pennsylvania and conducted post-doctoral work at Cornell. He went on to work on electron microscope technology at JEOL USA, Inc. for more than 25 years as a senior scientist.

Alan met and married his wife Susan in 1988. Following his retirement in 2005, Sue and Alan split their time between Chilmark in the summer and Tucson, Ariz. in the winter. They also enjoyed traveling overseas and to the French Caribbean.

To his friends and family, he was known for his love of cats, woodworking, enjoying cocktails on the deck at sunset and baking delicious apple pies. He had a passion for playing and watching tennis. He loved following New England and Pennsylvania sports and rarely missed a televised game of his favorite teams. He and Sue also relished many seasons of rooting for the University of Arizona Lady Wildcats softball team while wintering in Tucson.

He was predeceased by his twin brother, John H. Parkes, and their parents William and Mary Parkes.

He is survived by his wife Susan Kraetzer Parkes; stepsons Peter Loges and his wife Mary Beth of Harvard and David Loges and his wife Lisa of Memphis; step-grandchildren Heather Loges Child, Gregory Loges and Robert Landman; and two daughters by a previous marriage. Donations may be made to Visiting Nurse Association of Cape Cod, 255 Independence Drive, Hyannis, MA 02601, the ASPCA at aspca.org/ways-to-give, or the charity of one’s choice.