Walker, William T., 63, of Hyde Park, formerly of West Roxbury, died Thursday, August 16, 2018. William graduated with high honors from Roxbury Latin School in 1973 and attended Amherst College until he suffered a traumatic brain injury during a motor vehicle accident later that same year. For the past several years, William participated in MAB Community Services programs in Hyde Park and Allston. William was predeceased by his parents, Catherine (Fraher) Walker and Francis X. Walker, and his brother, Paul F. Walker. He is survived by his two sisters, Joan Walker of Quincy and Ann Marie Walker of Laurel Park, NC and West Roxbury, as well as two nieces, Caitlin Wilson of Chicago and Kimberly (Wilson) Minnix and her husband Benjamin Minnix of Danvers. Donations in William's memory may be made to MAB Community Services, 20 Ivy Street, Brookline, MA 02446. Burial at Mt. Benedict Cemetery was private. www.lawlerfuneralhome.com