Marion Young, formerly head of private client lending at Smith Barney, the latest in a series of postings for Citigroup over the course of 20 years, has joined HSBC as managing director and head of U.S. domestic private banking. “Marion brings more than 27 years of in-depth market experience to help further the private bank’s expansion efforts in the U.S.,” said Gerard Aquilina, chief executive officer of the Americas, HSBC Private Bank, to whom Young will report. “He will work with our team of highly skilled domestic private bankers to achieve much closer collaboration with our partners in tax, investment banking, corporate and commercial banking and personal financial services as HSBC continues to grow its footprint nationwide.”