HOUSTON (Reuters) - Former U.S. President George H.W. Bush will be mourned on Thursday at the Houston church where he worshipped for many years, a final public farewell before his remains are taken by train to their resting place at his Texas presidential library. People pay their respects as the flag-draped casket of former President George H.W. Bush lies in repose at St. Martin's Episcopal Church Wednesday, Dec. 5, 2018, in Houston. David J.