Cooper: Sam and Cara (Nadolsky) Cooper, Bridgeville, Allegheny County, son, May 26, at Heritage Sewickley Hospital, Allegheny County. Mr. Cooper is the son of Fred and Jeaneen Cooper of Carnegie, Allegheny County. Mrs. Cooper is the daughter of Gary Nadolsky of Lilly and the late Marianne Nadolsky.Elchin: Joshua and Lauren (Sorber) Elchin, Seattle, daughter, April 24, at Swedish Medical Center, Seattle. Mr. Elchin is the son of William and Karen Elchin of Davidsville. Mrs. Elchin is the daughter of Kevin Sorber of Johnstown and Tammy Furnari of Cramer.