Mr. and Mrs. Orville MosherMoshers to observe 5OthMr. and Mrs. Orville Mosher of Dixon will celebrate their 50th wedding anniversary on Friday.Orville Mosher and the former Wilma Waramaki were married June 16,1939 in DeKalb. They have four children: Wayne of PleasantHill, Calif., Dale of Ironton. Mo., Ralph of Poughkeepsie, N.Y., and Gerald of Janesville, Wis. There are six grandchildren.Due to an illness, the couple is postponing an open house