Thanks drxx, that has produced a sensible 'changed' letter.
I've obviously more to do with this final name, in finding other corrections, as I still cannot find a female (the others I've identified are 2 male, one female).
The letters I have for this final name are:
39a clue -alter 1st word, 3rd letter.
2d clue - alter 8th word, 3rd letter.
3d clue - alter final word, 1st letter.
Those letters plus the one you've just helped me with, and the last five seem to produce nothing!
Maybe I should concentrate on this week's puzzle instead!