KOEHN— Charlie and Gayla Weichel Koehn of Farmington, Minn., are parents of a baby boy, Ryan James, bom Nov. 4,1996, in Brunsville, Minn., weighing 8 pounds and 8 ounces. This is the couple's first child. Grandparents are James ancf Marla Weichel of DiHer and Fred and Vera Koehn of Edina, Minn. Great-grandmother is Ethel Allerheiligen of Beatrice and Arnojd Weichel of Fairbury.