MARRIAGE OF PRESIDENT’S YOUNGEST DAUGHTER.Wedding: at the White House is an Imposing: and PicturesqueAffair.The marriage of Miss Eleanor Wilson, youngest daughter of the President, to Mr. William McAdoo, Secretary of the Treasury, took place on Thursday, at White House, the ceremony being precisely the same in most of its details as in the case of Miss Jessie Wilson’s marriage to Mr. Sayres.In deference to the President’sdesire for privacy, the list of guests was limited, but the wedding, nevertheless, was imposing and picturesque.The members of Dr. Wilson’s Cabinet gave as a present a heavy silver dinner service, and tokens equally costly came from the Senate and House of Representatives.There were four attendants for the bride, her sisters, Mrs. Sayres and Miss Margaret Wilson, ccting as matron and maid of honour,; and preceding them, and strewing their way with flowers were two flower-girls, Miss Sallie McAdoo,the twelve-year-old daughter of the bridegroom, and Miss Nancy Lane, daughter of the Secretary of the Interior.