Mr. Roche is the co-founder and retired chairman of Roche Bros. supermarkets chain, in Wellesley, Mass. Mr. Roche, 81, and his wife, Barbara, 82, pledged $20-million to Boston College to endow its Center for Catholic Education, which trains undergraduate and graduate students to administer and teach in Catholic schools and universities nationwide and conducts research on Catholic institutions. The center will be named after the donors. Mr. Roche grew up in the Roslindale neighborhood of Boston and graduated from Boston College in 1951 with a bachelor’s degree in accounting.