German-American groups of the Eastbay, San Francisco and Petaluma will participate in a Christmas festival to be held at the" German Pioneer House, at 33 [32] Home Place East, Sunday afternoon. Sponsored by the Friends of New Germany, the program will be of particular interest to children and will include community singing, recitations. and the appearance of Santa Claus. Featured Vocalist will be Mrs. Anna Nettelman, of San Francisco