who were the different ambassadors to india from the u.s.
henry f. grady, loy w. henderson, chester bowles, george v. allen, john sherman cooper, ellsworth bunker, john kenneth galbraith, chester bowles, kenneth b. keating, daniel p. moynihan, william b. saxbe, robert f. goheen, harry g. barnes, jr., john gunther dean, john r. hubbard, william clark, jr., thomas r. pickering, frank g. wisner, richard frank celeste, robert blackwill, david campbell mulford, timothy j. roemer, albert peter burleigh, nancy jo powell
which ambassador had a title of charge d'affaires?
albert peter burleigh