Mr. and Mrs. Leo P. Ehrmann Jr. of North Tonawanda celebrated their 50th wedding anniversary with a family gathering at Black Forest Adler Restaurant, Amherst. Mr. Ehrmann and Elizabeth G. Zolkiewicz were married Nov. 17, 1962, in St. Stanislaus Catholic Church, Buffalo. He is a retired assistant general foreman for National Fuel Gas in Niagara Falls; she is a retired teacher. They have three children and six grandchildren.