SERVICES FOR LOCAL MARINE: Shown above, left, is the stage of the Graar Chine Theater, at An Ping, China, where funeral services were held for Lt. Douglas A. Cowin, slain Marine son of Rev. and Mrs. Fred Cowin of 1621 Granger Ave., Ann Arbor. To the right is a close-up of one of the memorial scrolls on which is written part of a funeral ode. As a gesture of sympathy the Cowins received this week complete sets of pictures of the funeral which was held in August, and several sets of scrolls sent to the services by townspeople, Chinese officials and the commander of the 94th division of the Chinese Army. Cowin and three other U. S. Marines were killed in an ambush near An Ping on July 29.