North Berkshire equestrians, in cluding a three-member brother combination, won ribbons at the ‘Post and Rail Horse Show in Pittsfield yesterday where 60 en trants competed in a 21-class pro gram. The three brothers are Law rence H., 14, Donald J., 16, and ‘Alfred George, 22. They are sons for Mr. and Mrs. Harry A. George for 651 Ashland St. Alfred lives at ‘68 Meadow St. Two Cheshire sisters, Pamela .S. and Elaine A. Littlejohn, daugh ters of Mr. and Mrs. Lyance G. ‘Littlejohn Jr. of Wells Rd., Che shire, also returned to North ‘Berkshire with winner’s ribbons. ’ Pamela, 13, won a_ reserve ‘champion ribbon in the English ‘division riding ‘Cedar Grove,” a b brown gelding, while her sister, five-year-old Elaine, won first place in the head-line classifica tion with ‘Flossy,’ a brown mare. Among the George's, “Sham rock,” a chesnut gelding ridden by Lawrence, was judged the show's jumper champion. Taking reserve champion rec ognition was ‘‘Timkin,’ a grey gelding ridden by Donald And “Polaris,” a bay gelding, with Alfred in the saddle, took reserve champion honors in the hunter class.